Elemental phosphorus distillation recovery device for phosphorus sludge processor
By designing an indirect heating distillation kettle, stirring, condensing and collection mechanism in the mud phosphorus treatment machine, the problems of uneven temperature distribution and harmful gases are solved, and efficient phosphorus recovery and safe distillation process are achieved.
Patent Information
- Application Number
- CN202420622429.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-03-28
AI Technical Summary
During the high-temperature distillation process, existing mud phosphorus treatment machines have problems such as uneven temperature distribution, low heating efficiency, overload of the distillation kettle and the generation of harmful gases, which affect the efficient recovery of phosphorus elements and environmental safety.
A single phosphorus distillation recovery device including an indirect heating distillation kettle, a stirring mechanism, a condensing mechanism and a collection mechanism are designed. The rotating shaft driven by a servo motor and the arc-shaped stirring rod and the blade are fully stirred to increase the heat contact area; The pipe and spiral heat exchange tube are used to condense gaseous phosphorus to ensure efficient recovery and collection of elemental phosphorus.
It improves distillation efficiency and heat transfer efficiency, realizes efficient recovery of elemental phosphorus, reduces waste of phosphorus resources, and avoids the dissipation of harmful gases, ensuring operational safety and environmental protection.
Smart Images
Figure CN222304784U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mud phosphorus treatment machines, and more specifically to a single substance phosphorus distillation recovery device for mud phosphorus treatment machines. Background Art
[0002] Mud phosphorus is a special chemical substance. It is an important intermediate product or by-product in the phosphorus chemical production process. Specifically, mud phosphorus mainly comes from the processing of phosphate ore and the precipitate in the production process of wet phosphoric acid. These precipitates contain high phosphorus, but because they contain impurities, moisture and other unreacted chemicals, they are in a muddy form, so they are called mud phosphorus. Mud phosphorus processor is a special equipment for processing mud phosphorus. Its main function is to crush, screen, distill and recycle mud phosphorus to extract and utilize the phosphorus element.
[0003] When the phosphorus element is extracted by high-temperature distillation in the mud phosphorus treatment machine in the prior art, the temperature distribution of the mud phosphorus is uneven, and the mud phosphorus is easily hot outside and cold inside, resulting in large energy consumption for heating and poor heating efficiency. On the other hand, the increase in high temperature will also cause the temperature of the distillation kettle body to overload, and additional cooling measures need to be taken to prevent thermal damage to the distillation kettle body; in addition, harmful gases may be generated during the high-temperature distillation process, posing a threat to the environment and the health of operators. Therefore, it is necessary to design a new elemental phosphorus distillation recovery device for the mud phosphorus treatment machine. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an elemental phosphorus distillation recovery device for a sludge phosphorus treatment machine to solve the problems existing in the above-mentioned background technology.
[0005] The utility model provides the following technical scheme: comprising a fixed support frame and a distillation kettle arranged on the fixed support frame, the distillation kettle is an indirect heating distillation kettle, a slag discharge port is arranged at the bottom of the distillation kettle, a feed port is arranged at the top, a distillation chamber is opened inside the distillation kettle, a feed port is opened at the front side of the distillation kettle, a conveying pipeline is fixedly connected in the feed port, a mounting port is opened at the bottom of the distillation chamber, a slag discharge port is opened at the bottom end of the distillation kettle behind the mounting port, a stirring mechanism which penetrates upward into the distillation chamber is arranged on the mounting port, and the stirring mechanism is rotatably sealed and connected with the mounting port, a stirring support is arranged at the bottom of the stirring mechanism, a connecting seat is fixedly connected to the top of the distillation kettle, a phosphorus extraction pump connected to the distillation chamber is fixedly installed on the top of the connecting seat, an output end of the phosphorus extraction pump is fixedly connected to a bent pipe, the other end of the bent pipe is provided with a condensing mechanism, the output end of the condensing mechanism is fixedly connected to a guide pipe, and the other end of the guide pipe is provided with a collecting mechanism.
[0006] Furthermore, the stirring mechanism includes a servo motor, a connecting shaft, a turntable, a rotating shaft, a stirring rod 1, a stirring blade and a stirring rod 2. The servo motor is fixedly installed on the lower part of the fixed support frame through a stirring support. The output end of the servo motor is provided with a connecting shaft that passes through the installation port and extends to the distillation chamber. A turntable connected to the connecting shaft is provided at the bottom of the distillation chamber. The turntable is rotatably connected in the distillation chamber. A rotating shaft is fixedly connected at the center position of the top of the turntable. A plurality of stirring rods 1 are evenly spaced around the bottom of the rotating shaft. A stirring blade is fixedly connected to the end of the stirring rod 1 away from the rotating shaft. The stirring rod 1 and the stirring blade are both arranged in an arc structure. A plurality of stirring rods 2 are provided on the top of the stirring rod 1, and a plurality of stirring rods 2 are fixedly connected to the rotating shaft at equal intervals.
[0007] Technical effects and advantages of the utility model:
[0008] 1. The utility model improves the structure of the existing indirect heating distillation kettle and the stirring mechanism, and uses a servo motor to drive a rotating shaft and a plurality of stirring rods 1, stirring blades and stirring rods 2 arranged on the rotating shaft to fully stir the mud phosphorus in the distillation chamber. The stirring can increase the contact area between the mud phosphorus and the heat, so that the phosphorus element can evaporate more quickly from the mud phosphorus, thereby improving the distillation efficiency. In addition, the stirring can destroy the temperature boundary layer between the mud phosphorus and the wall of the distillation kettle, increase the heat transfer area, improve the heat transfer efficiency, and make the distillation process faster and more efficient.
[0009] 2. The utility model is provided with a condensing mechanism, and the gaseous phosphorus separated by heating in the distillation chamber is extracted into the condenser through a phosphorus extraction pump. When the gaseous phosphorus enters the condenser, the heat of the gaseous phosphorus is absorbed by the heat dissipation ribs and the spiral heat exchange tubes arranged on the condenser to reduce its temperature. As the temperature decreases, the gaseous phosphorus gradually condenses and is converted into liquid or solid elemental phosphorus, thereby realizing efficient recovery of elemental phosphorus, which can not only improve the utilization rate of phosphorus resources, but also reduce the waste of phosphorus resources.
[0010] 3. The utility model is provided with a collecting mechanism, and the collecting mechanism is tightly connected with the condensing mechanism by a guide tube, so as to ensure that the condensed elemental phosphorus can smoothly enter the containing barrel, and can realize efficient condensation and collection of elemental phosphorus, which not only ensures the recovery rate of elemental phosphorus, but also avoids the potential harm of the escape of phosphorus vapor to the environment and operators. At the same time, the elemental phosphorus in the collecting mechanism can be further processed or utilized. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0013] Figure 3 It is a structural schematic diagram of the stirring mechanism in the utility model;
[0014] Figure 4 It is a structural schematic diagram of the condensation mechanism in the utility model;
[0015] Figure 5 It is a structural schematic diagram of the collecting mechanism in the utility model;
[0016] Figure numerals: 1. fixed support frame; 2. distillation kettle; 201. distillation chamber; 202. installation port; 3. feed port; 4. conveying pipeline; 5. stirring mechanism; 501. servo motor; 502. connecting shaft; 503. turntable; 504. rotating shaft; 505. stirring rod one; 506. stirring blade; 507. stirring rod two; 6. stirring support; 7. connecting seat; 8. phosphorus extraction pump; 9. elbow; 10. condensation mechanism; 1001. condenser; 1002. flange; 1003. heat dissipation rib; 1004. spiral heat exchange tube; 11. guide tube; 12. collecting mechanism; 1201. accommodating barrel; 1202. phosphorus inlet hole; 1203. sealing ring; 1204. observation window; 13. exhaust pipe; 14. exhaust valve. DETAILED DESCRIPTION
[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The elemental phosphorus distillation recovery device for a mud phosphorus treatment machine involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.
[0018] like Figure 1-5As shown, the utility model provides a single substance phosphorus distillation recovery device for a sludge phosphorus treatment machine, comprising a fixed support frame 1 and a distillation kettle 2 arranged on the fixed support frame 1, the distillation kettle 2 is an indirect heating distillation kettle, a distillation chamber 201 is provided inside the distillation kettle 2, a feed port 3 is provided on the front side of the distillation kettle 2, a conveying pipeline 4 is fixedly connected to the feed port 3, a mounting port 202 is provided at the bottom of the distillation chamber 201, a slag discharge port is provided at the bottom end of the distillation kettle 2 behind the mounting port 202 to discharge waste, and a There is a stirring mechanism 5 which penetrates upward into the distillation chamber 201, and the stirring mechanism 5 is connected to the installation port 202 in a rotating sealed manner. A stirring support 6 is arranged at the bottom of the stirring mechanism 5. A connecting seat 7 is fixedly connected to the top of the distillation kettle 2. A phosphorus extraction pump 8 which is connected to the distillation chamber 201 is fixedly installed on the top of the connecting seat 7. A bent pipe 9 is fixedly connected to the output end of the phosphorus extraction pump 8. A condensing mechanism 10 is arranged at the other end of the bent pipe 9. A guide pipe 11 is fixedly connected to the output end of the condensing mechanism 10. A collecting mechanism 12 is arranged at the other end of the guide pipe 11.
[0019] Specifically, the other end of the conveying pipeline 4 is connected to the pretreatment mechanism, and the mud phosphorus that has undergone preliminary crushing, screening and drying treatment is transported to the distillation chamber 201 through the conveying pipeline 4 and the feed port 3 to provide suitable raw materials for subsequent distillation and recovery operations. Since the kettle body of the distillation kettle 2 is an existing known indirect heating distillation kettle, its heating part and its structure are no longer introduced in detail in this technical solution. The heating part of the distillation kettle 2 is connected to a heat source or a power source. The heating part is responsible for heating and distilling the pretreated mud phosphorus in the distillation chamber 201, so that the elemental phosphorus is separated from the mud phosphorus in a gaseous form.
[0020] Furthermore, the stirring mechanism 5 includes a servo motor 501, a connecting shaft 502, a turntable 503, a rotating shaft 504, a stirring rod 1 505, a stirring blade 506 and a stirring rod 2 507. The servo motor 501 is fixedly installed at the lower part of the fixed support frame 1 through a stirring support 6. The output end of the servo motor 501 is provided with a connecting shaft 502 that passes through the installation port 202 and extends to the distillation chamber 201. A turntable 503 connected to the connecting shaft 502 is provided at the bottom of the distillation chamber 201. The turntable 503 is rotatably connected in the distillation chamber 201. The rotating shaft 504 is fixedly connected at the center position of the top of the turntable 503. A plurality of stirring rods 1 505 are evenly spaced around the bottom of the rotating shaft 504. A stirring blade 506 is fixedly connected to the end of the stirring rod 1 505 away from the rotating shaft 504. The stirring rod 1 505 and the stirring blade 506 are both arranged in an arc structure. The stirring blade 506 with the arc structure scrapes the lower anti-static Attachment, reducing or eliminating the stirring dead zone, a plurality of stirring rods 507 are arranged on the top of the stirring rod 1 505, and the plurality of stirring rods 507 are fixedly connected to the rotating shaft 504 at equal intervals. When the distillation kettle 2 heats and distills the mud phosphorus in the distillation chamber 201, the servo motor 501 is started, and the servo motor 501 is used to drive the turntable 503 and the rotating shaft 504 to rotate in the distillation chamber 201, and the rotating shaft 504 is used to drive the stirring rod 1 505, the stirring blade 506 and the stirring rod 2 507 to rotate, so that the mud phosphorus in the distillation chamber 201 and the generated steam are fully mixed, ensuring that the phosphorus element can be evenly heated and effectively separated from the mud phosphorus. The setting of the stirring mechanism 5 can break the static state of the mud phosphorus and increase its fluidity to achieve efficient distillation of the mud phosphorus, and the arc-shaped stirring rod 1 505 and the stirring blade 506 can stir the mud phosphorus at the bottom of the distillation chamber 201 so that it can be mixed more evenly.
[0021] Specifically, the connecting shaft 502 is disposed in the mounting opening 202 via a sealed rotating shaft seat, which can achieve sealing and leakage prevention while ensuring that the connecting shaft 502 can operate normally without interference.
[0022] The second stirring rod 507 is disposed obliquely upward, and the angle between the second stirring rod 507 and the rotating shaft 504 is an acute angle, so that stirring is sufficient.
[0023] Furthermore, the condensation mechanism 10 includes a condenser 1001, a flange 1002, heat dissipation ribs 1003 and a spiral heat exchange tube 1004, both ends of the condenser 1001 are fixedly connected with flanges 1002, heat dissipation ribs 1003 are spirally arranged on the outer wall of the condenser 1001, and the spiral heat exchange tube 1004 is sleeved on the outer wall of the condenser 1001. During the distillation stage, the distillation kettle 2 heats the mud phosphorus in the distillation chamber 201 to evaporate the elemental phosphorus therein into a gaseous state, and the gaseous phosphorus is then guided to the condenser 1001 through the phosphorus extraction pump 8 and the bend pipe 9. The condenser 1001 is cooled by the heat dissipation ribs 1003 and the spiral heat exchange tube 1004, wherein the two ends of the spiral heat exchange tube 1004 are respectively connected to the external condenser through the pipeline to realize circulating condensation, and are cooled by cooling water or other cooling media. When the gaseous phosphorus enters the condenser 1001, due to the decrease in temperature, the gaseous phosphorus begins to condense and convert into liquid or solid form.
[0024] Furthermore, the collecting mechanism 12 includes a containing barrel 1201, a phosphorus inlet hole 1202 is provided at a central position on the top of the containing barrel 1201, a sealing ring 1203 is embedded in the phosphorus inlet hole 1202, the phosphorus inlet hole 1202 is adapted to the guide tube 11, an observation window 1204 is provided on the front side of the containing barrel 1201, the collecting mechanism 12 is connected to the condensing mechanism 10 through the guide tube 11, to ensure that the condensed elemental phosphorus can smoothly enter the containing barrel 1201, and the containing barrel 1201 is used to store the condensed elemental phosphorus, at the same time, a sealing ring 1203 is provided to seal the interface to prevent leakage of phosphorus vapor or splashing of condensed liquid droplets during the condensation process, and the observation window 1204 provided on the containing barrel 1201 is convenient for the staff to check the storage status of the elemental phosphorus in the containing barrel 1201.
[0025] Furthermore, an exhaust pipe 13 is fixedly connected to the upper part of the distillation kettle 2, and the exhaust pipe 13 is communicated with the distillation chamber 201. An exhaust valve 14 is fixedly installed at the outlet end of the exhaust pipe 13. The exhaust valve 14 can be used to open or close the channel of the exhaust pipe 13 according to actual needs, thereby controlling the emission amount and emission time of the exhaust gas, which not only ensures the smooth progress of the distillation process, but also avoids the uncontrolled emission of exhaust gas into the environment.
[0026] The working principle of the utility model is as follows: first, the phosphorus mud that has undergone preliminary crushing, screening and drying treatment is transported to the distillation chamber 201 of the distillation kettle 2 through the transport pipeline 4 and the feed port 3; then, the heating part on the distillation kettle 2 is started to heat and distill the phosphorus mud in the distillation chamber 201, so that the elemental phosphorus is separated from the phosphorus mud in the form of gas;
[0027] During the distillation process, the servo motor 501 of the stirring mechanism 5 is started, and the turntable 503 is driven to rotate in the distillation chamber 201 through the connecting shaft 502. The rotating shaft 504 on the top of the turntable 503 drives a plurality of stirring rods 1 505, stirring blades 506 and stirring rods 2 507 to rotate, and the arc-shaped stirring rods 1 505 and stirring blades 506 can stir the mud phosphorus at the bottom of the distillation chamber 201 to make it more evenly mixed. In this way, the mud phosphorus and the generated steam can be fully mixed, ensuring that the phosphorus element can be evenly heated and effectively separated from the mud phosphorus;
[0028] Next, the gaseous phosphorus is guided to the condensation mechanism 10 through the phosphorus extraction pump 8 and the bent pipe 9. In the condensation mechanism 10, the gaseous phosphorus is cooled through the condensation tube 1001. The heat dissipation ribs 1003 and the spiral heat exchange tube 1004 on the outer wall of the condensation tube 1001 enhance the cooling effect. When the gaseous phosphorus enters the condensation tube 1001, the gaseous phosphorus begins to condense and convert into liquid or solid form due to the decrease in temperature.
[0029] Finally, the condensed elemental phosphorus enters the storage barrel 1201 of the collection mechanism 12 through the guide tube 11 for collection. At the same time, the observation window 1204 on the front side of the storage barrel 1201 allows the staff to check the storage status of the elemental phosphorus in the storage barrel 1201. In addition, the waste gas generated during the distillation process is discharged through the exhaust pipe 13. The exhaust valve 14 can be used to open or close the channel of the exhaust pipe 13 according to actual needs, thereby controlling the emission amount and emission time of the waste gas.
Claims
1. A phosphorus distillation recovery device for a phosphorus sludge treatment machine, comprising a fixed support frame (1) and a distillation kettle (2) arranged on the fixed support frame (1), wherein the distillation kettle (2) is an indirect heating distillation kettle, a slag discharge port is arranged at the bottom, and a feed port (3) is arranged at the top, and the characteristics are: A distillation chamber (201) is provided inside the distillation kettle (2), a feed port (3) is provided on the front side of the distillation kettle (2), a conveying pipeline (4) is fixedly connected to the feed port (3), a mounting port (202) is provided at the bottom of the distillation chamber (201), a slag discharge port is provided at the bottom end of the distillation kettle (2) behind the mounting port (202), a stirring mechanism (5) is provided on the mounting port (202) and penetrates upward into the distillation chamber (201), and the stirring mechanism (5) is connected to the mounting port (202) in a rotatable sealed manner, A stirring support (6) is provided at the bottom of the stirring mechanism (5); a connecting seat (7) is fixedly connected to the top of the distillation kettle (2); a phosphorus extraction pump (8) connected to the distillation chamber (201) is fixedly installed on the top of the connecting seat (7); an output end of the phosphorus extraction pump (8) is fixedly connected to a bent pipe (9); a condensing mechanism (10) is provided at the other end of the bent pipe (9); a guide pipe (11) is fixedly connected to the output end of the condensing mechanism (10); a collecting mechanism (12) is provided at the other end of the guide pipe (11).
2. The elemental phosphorus distillation recovery device for a sludge phosphorus treatment machine according to claim 1, characterized in that: The stirring mechanism (5) comprises a servo motor (501), a connecting shaft (502), a turntable (503), a rotating shaft (504), a stirring rod 1 (505), a stirring blade (506) and a stirring rod 2 (507); the servo motor (501) is fixedly mounted on the lower part of the fixed support frame (1) via a stirring support (6); the output end of the servo motor (501) is provided with a connecting shaft (502) passing through the mounting opening (202) and extending to the distillation chamber (201); a turntable (503) connected to the connecting shaft (502) is provided at the bottom of the distillation chamber (201); the turntable (503) rotates Connected in the distillation chamber (201), a rotating shaft (504) is fixedly connected at the center position of the top of the turntable (503), and a plurality of stirring rods (505) are arranged around the bottom of the rotating shaft (504) at equal intervals. A stirring blade (506) is fixedly connected to the end of the stirring rod (505) away from the rotating shaft (504), and the stirring rod (505) and the stirring blade (506) are both arranged in an arc structure. A plurality of stirring rods (507) are arranged on the top of the stirring rod (505), and the plurality of stirring rods (507) are fixedly connected to the rotating shaft (504) at equal intervals.
3. The elemental phosphorus distillation recovery device for a sludge phosphorus treatment machine according to claim 1, characterized in that: The condensation mechanism (10) comprises a condensation tube (1001), a flange (1002), heat dissipation ribs (1003) and a spiral heat exchange tube (1004); both ends of the condensation tube (1001) are fixedly connected with flanges (1002); heat dissipation ribs (1003) are spirally arranged on the outer wall of the condensation tube (1001); a spiral heat exchange tube (1004) is sleeved on the outer wall of the condensation tube (1001); and both ends of the spiral heat exchange tube (1004) are respectively connected to an external condenser through pipelines.
4. The elemental phosphorus distillation recovery device for a sludge phosphorus treatment machine according to claim 1, characterized in that: The collecting mechanism (12) comprises a containing barrel (1201), a phosphorus inlet hole (1202) is provided at the center of the top of the containing barrel (1201), a sealing ring (1203) is embedded in the phosphorus inlet hole (1202), the phosphorus inlet hole (1202) is matched with the guide tube (11), and an observation window (1204) is provided on the front side of the containing barrel (1201).
5. The elemental phosphorus distillation recovery device for a sludge phosphorus treatment machine according to claim 1, characterized in that: An exhaust pipe (13) is fixedly connected to the upper part of the distillation kettle (2), the exhaust pipe (13) is in communication with the distillation chamber (201), and an exhaust valve (14) is fixedly installed at the outlet end of the exhaust pipe (13).
6. The elemental phosphorus distillation recovery device for a sludge phosphorus treatment machine according to claim 2, characterized in that: The connecting shaft (502) is arranged in the installation opening (202) via a sealed rotating shaft seat.
7. The elemental phosphorus distillation recovery device for a sludge phosphorus treatment machine according to claim 2, characterized in that: The second stirring rod (507) is arranged obliquely upward, and the angle between the second stirring rod (507) and the rotating shaft (504) is an acute angle.