Desublimation cooling conveying treatment system for phosphorus pentoxide production

Abstract

The utility model relates to the technical field of phosphorus pentoxide production, in particular to a desublimation cooling conveying treatment system for phosphorus pentoxide production, which comprises a phosphorus burning tower and a desublimation cooling part, a first gear is rotationally mounted at the top of the tank body, and a motor for driving the first gear to rotate is arranged above the first gear; a rotating shaft is coaxially connected to the first gear through a key, the rotating shaft penetrates into the tank body, and two symmetrical scraping plates are coaxially fixed to the outer wall of the rotating shaft; the high-temperature gaseous phosphorus pentoxide is directly sprayed on the outer wall of the cooling cylinder through the smoke spraying heads on the two sides, the high-temperature gaseous phosphorus pentoxide is directly cooled and quickly desublimates, and the desublimation effect on the high-temperature gaseous phosphorus pentoxide is guaranteed; under the action of a scraping plate, phosphorus pentoxide adhered to the outer wall of the cooling cylinder can be scraped off; by means of the design, the cooling efficiency of phosphorus pentoxide is guaranteed, the situation that phosphorus pentoxide adheres to the cooling cylinder is avoided, and the production efficiency of phosphorus pentoxide is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphorus pentoxide production, in particular to a desublimation cooling, conveying and processing system for phosphorus pentoxide production. Background Art

[0002] Phosphorus pentoxide, also known as phosphoric anhydride, anhydrous phosphoric acid, phosphorus pentoxide, is an important inorganic compound. Phosphorus pentoxide is often used as a desiccant and dehydrating agent, and is also the main material for making phosphoric acid, pesticides, and phosphates. Phosphorus pentoxide is widely used in the fields of chemical industry, pesticides, and medicine. At present, in the preparation process of phosphorus pentoxide, phosphate ore, coke skin, silica sand, etc. can be mixed with an appropriate amount of iron filings. After mixing evenly, it is put into the phosphorus burning tower. After a period of reaction, the combustion product (high-temperature gaseous phosphorus pentoxide) will be captured. After the product is condensed and cooled, phosphorus pentoxide can be obtained.

[0003] In the current phosphorus pentoxide production process, high-temperature gaseous phosphorus pentoxide is usually directly passed into a cooling tower for desublimation cooling after being captured. However, in actual operation, solidified phosphorus pentoxide tends to adhere to the cooler inside the cooling tower. This adhesion phenomenon not only reduces the cooling efficiency of the cooler, but also seriously affects the desublimation cooling effect of phosphorus pentoxide. In view of this, we propose a desublimation cooling and transportation processing system for phosphorus pentoxide production. Utility Model Content

[0004] The utility model aims to provide a desublimation cooling, conveying and processing system for phosphorus pentoxide production to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The sublimation cooling, conveying and processing system for phosphorus pentoxide production includes a phosphorus burning tower and a sublimation cooling unit;

[0007] The phosphorus burning tower is used to burn phosphate ore to generate phosphorus pentoxide; a smoke exhaust pipe for conveying high-temperature gaseous phosphorus pentoxide is installed at the top smoke outlet of the phosphorus burning tower;

[0008] The desublimation cooling part is used to quickly cool the high-temperature gaseous phosphorus pentoxide and convert it into a solid state; it includes a hollow tank body, a discharge pipe is installed at the bottom of the tank body; a collection bin is installed at the bottom of the discharge pipe;

[0009] A connecting ring is fixed at the top of the outer wall of the tank body, a connecting pipe connected to the smoke exhaust pipe is installed on the outer wall of the connecting ring, two extension pipes extending downward are fixed on the bottom surface of the connecting ring, and two opposite end surfaces of the two extension pipes are both installed with a plurality of smoke spray heads inserted into the tank body;

[0010] A first gear is rotatably mounted on the top of the tank body, and a motor for driving the first gear to rotate is provided above the first gear; a rotating shaft is coaxially keyed on the first gear, and the rotating shaft penetrates into the tank body, and two symmetrical scrapers are coaxially fixed on the outer wall of the rotating shaft;

[0011] Hollow cooling cylinders are rotatably installed on the left and right sides of the rotating shaft, and the outer wall of the scraper is in contact with the outer wall of the cooling cylinder; a water inlet is fixedly installed on the top of the cooling cylinder, the water inlet passes through the top of the tank body and is coaxially keyed to connect a second gear, and the first gear is meshed with the second gear, and a drain outlet is fixedly installed on the bottom of the cooling cylinder, and the drain outlet passes through to the outside; a water inlet pipe is provided between the tops of the two water inlets, and the water inlet pipe is rotatably connected to the water inlet.

[0012] Preferably, the top of the tank body is fixedly connected to a bracket by bolts, and the water inlet pipe is fixedly connected to the top of the bracket by bolts.

[0013] Preferably, a fixing frame is fixedly connected to the bottom center of the bracket by bolts, and the motor is fixedly connected to the fixing frame by bolts.

[0014] Preferably, the collecting bin is fixedly connected to the discharge pipe by bolts, and the collecting bin is made of polyethylene plastic.

[0015] Preferably, the plurality of cigarette nozzles are linearly and evenly spaced in the vertical direction, and the cigarette nozzle and the extension tube are an integrally formed structure.

[0016] Preferably, the cross-sectional shape of the cooling cylinder is annular, and the cooling cylinder is a product made of stainless steel.

[0017] Preferably, the overall shape of the connecting ring is annular, and the connecting ring is fixedly connected to the extension tube by bolts.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] By setting up the desublimation cooling part: the high-temperature gaseous phosphorus pentoxide is directly sprayed on the outer wall of the cooling cylinder through the smoke nozzles on both sides, and the high-temperature gaseous phosphorus pentoxide is directly cooled and quickly desublimated, thereby ensuring the desublimation effect of the high-temperature gaseous phosphorus pentoxide; at the same time, with the rotation of the cooling cylinder, the phosphorus pentoxide adhering to the outer wall of the cooling cylinder can be scraped off by the scraper; this design not only ensures the cooling efficiency of the phosphorus pentoxide, but also avoids the situation where the phosphorus pentoxide adheres to the cooling cylinder, thereby ensuring the production efficiency of the phosphorus pentoxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2It is a structural schematic diagram of the sublimation cooling part in the utility model;

[0022] Figure 3 It is a structural cross-sectional view of the sublimation cooling part in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the connecting ring in the utility model;

[0024] Figure 5 It is a schematic diagram of a partial explosion structure in the utility model.

[0025] In the figure:

[0026] 1. Phosphorus burning tower; 10. Smoke exhaust pipe;

[0027] 2. Condensation cooling section; 20. Tank body; 201. Discharge pipe; 21. Collection bin; 22. Bracket; 221. Fixing frame; 23. Connecting ring; 231. Connecting pipe; 24. Extension pipe; 241. Cigarette nozzle; 25. First gear; 251. Rotating shaft; 26. Scraper; 27. Cooling cylinder; 271. Water inlet; 272. Second gear; 273. Drainage outlet; 28. Motor; 29. ​​Water inlet pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] This embodiment provides a technical solution:

[0030] See also Figure 1-Figure 5, a desublimation cooling, conveying and processing system for phosphorus pentoxide production, comprising a phosphorus burning tower 1 and a desublimation cooling section 2. The phosphorus burning tower 1 is used to burn phosphate ore to generate phosphorus pentoxide; a smoke exhaust pipe 10 for conveying high-temperature gaseous phosphorus pentoxide is installed at the top smoke outlet of the phosphorus burning tower 1; the desublimation cooling section 2 is used to quickly cool the high-temperature gaseous phosphorus pentoxide and convert it into a solid state; it comprises a hollow tank body 20, a discharge pipe 201 is installed at the bottom of the tank body 20; a collecting bin 21 is installed at the bottom of the discharge pipe 201; a connecting ring 23 is fixed at the top of the outer wall of the tank body 20, a connecting pipe 231 connected to the smoke exhaust pipe 10 is installed on the outer wall of the connecting ring 23, two downwardly extending extension pipes 24 are fixed to the bottom surface of the connecting ring 23, and two opposite end surfaces of the two extension pipes 24 are installed with a plurality of smoke nozzles 241 inserted into the tank body 20; a first gear 25 is rotatably installed at the top of the tank body 20, and the first gear 25 A motor 28 is provided on the top for driving the first gear 25 to rotate; a rotating shaft 251 is coaxially keyed on the first gear 25, the rotating shaft 251 penetrates into the tank body 20, and two symmetrical scrapers 26 are coaxially fixed to the outer wall of the rotating shaft 251; a hollow cooling cylinder 27 is rotatably installed on the left and right sides of the rotating shaft 251, and the outer wall of the scraper 26 fits with the outer wall of the cooling cylinder 27; a water inlet 271 is fixedly installed on the top of the cooling cylinder 27, the water inlet 271 passes through the top of the tank body 20 and is coaxially keyed with a second gear 272, and the first gear 25 is meshed with the second gear 272, and a drain port 273 is fixedly installed on the bottom of the cooling cylinder 27, and the drain port 273 penetrates to the outside; a water inlet pipe 29 is provided between the tops of the two water inlets 271, and the water inlet pipe 29 is rotatably connected to the water inlet 271.

[0031] In this embodiment, the top of the tank body 20 is fixedly connected with a bracket 22 by bolts, and the water inlet pipe 29 is fixedly connected with the top of the bracket 22 by bolts. The setting of the bracket 22 plays a stable supporting role for the water inlet pipe 29, ensuring the stability of the water inlet pipe 29.

[0032] In this embodiment, a fixing frame 221 is fixedly connected to the bottom center of the bracket 22 by bolts, and the motor 28 is fixedly connected to the fixing frame 221 by bolts. The fixing frame 221 plays a stable supporting role for the motor 28, ensuring the stability of the motor 28.

[0033] In this embodiment, the collecting bin 21 is fixedly connected to the discharge pipe 201 by bolts, and the collecting bin 21 is made of polyethylene plastic. Phosphorus pentoxide is a first-class inorganic acid corrosive substance, and polyethylene plastic is more suitable.

[0034] In this embodiment, multiple smoke heads 241 are linearly and evenly spaced in the vertical direction, and the smoke heads 241 and the extension tube 24 are an integrally formed structure. Multiple smoke heads 241 are conducive to directly spraying high-temperature gaseous phosphorus pentoxide onto the outer wall of the cooling tube 27, which is conducive to ensuring the cooling effect of phosphorus pentoxide.

[0035] In this embodiment, the cross-section of the cooling cylinder 27 is annular, and the cooling cylinder 27 is made of stainless steel. The annular design makes it difficult for phosphorus pentoxide to adhere to the outer wall of the cooling cylinder 27, and the stainless steel material has a certain corrosion resistance, which ensures the service life of the cooling cylinder 27.

[0036] In this embodiment, the overall shape of the connecting ring 23 is annular, and the connecting ring 23 is fixedly connected to the extension tube 24 by bolts. The bolt fixing method is reliable and stable, and is easy to disassemble and assemble.

[0037] It can be understood that the water inlet 271 and the drain outlet 273 in this embodiment are both rotatably connected to the tank body 20. This design facilitates the rotation of the water inlet 271 and the drain outlet 273 when the cooling cylinder 27 rotates, while also ensuring that the cooling water source flows between the water inlet 271, the cooling cylinder 27 and the drain outlet 273.

[0038] It should be added that the outer wall of the cooling cylinder 27 in this embodiment is coated with a wear-resistant coating, and the wear-resistant coating is a KN17 ceramic coating. This design can not only reduce the wear of the scraper 26 on the cooling cylinder 27 and ensure the service life of the cooling cylinder 27, but also reduce the possibility of phosphorus pentoxide adhering to the outer wall of the cooling cylinder 27.

[0039] It is worth noting that the motor 28 involved in this embodiment is an existing conventional technology and will not be described in detail here.

[0040] When in use, the user first turns on the power of the motor 28, and the motor 28 starts to work. The output shaft of the motor 28 rotates to drive the first gear 25 and the rotating shaft 251 to rotate, and the rotating shaft 251 drives the scraper 26 to rotate. Because the first gear 25 is meshed with the second gear 272, the second gear 272 rotates and drives the water inlet 271 and the cooling cylinder 27 to rotate. At the same time, the cooling water source enters the cooling cylinder 27 through the water inlet pipe 29 and flows in the cooling cylinder 27. At the same time, the phosphorus burning tower 1 burns phosphate ore, coke skin and silica sand to produce High-temperature gaseous phosphorus pentoxide enters the connecting ring 23 through the smoke exhaust pipe 10 and the connecting pipe 231, and enters the extension pipes 24 on both sides through the connecting ring 23. At the same time, the high-temperature gaseous phosphorus pentoxide is sprayed onto the outer wall of the cooling cylinder 27. The high-temperature gaseous phosphorus pentoxide is cooled and condensed rapidly at the same time. As the cooling cylinder 27 rotates, the phosphorus pentoxide adhered to the outer wall of the cooling cylinder 27 is scraped off by the scraper 26, and finally the phosphorus pentoxide that falls falls into the collecting bin 21 through the discharge pipe 201 for collection.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A desublimation cooling, transporting and processing system for phosphorus pentoxide production, comprising a phosphorus burning tower (1) and a desublimation cooling unit (2), characterized in that: The phosphorus burning tower (1) is used to burn phosphate ore to generate phosphorus pentoxide; a smoke exhaust pipe (10) for conveying high-temperature gaseous phosphorus pentoxide is installed at the top smoke outlet of the phosphorus burning tower (1); The desublimation cooling part (2) is used to rapidly cool high-temperature gaseous phosphorus pentoxide and convert it into a solid state; it comprises a hollow tank body (20), a discharge pipe (201) is installed at the bottom of the tank body (20); a collection bin (21) is installed at the bottom of the discharge pipe (201); A connecting ring (23) is fixed at the top of the outer wall of the tank body (20), a connecting pipe (231) connected to the smoke exhaust pipe (10) is installed on the outer wall of the connecting ring (23), two downwardly extending extension pipes (24) are fixed on the bottom surface of the connecting ring (23), and a plurality of smoke spray heads (241) inserted into the tank body (20) are installed on two opposite end surfaces of the two extension pipes (24); A first gear (25) is rotatably mounted on the top of the tank body (20), and a motor (28) is provided above the first gear (25) for driving the first gear (25) to rotate; a rotating shaft (251) is coaxially keyed on the first gear (25), and the rotating shaft (251) penetrates into the tank body (20), and two symmetrical scrapers (26) are coaxially fixed to the outer wall of the rotating shaft (251); A hollow cooling cylinder (27) is rotatably mounted on both sides of the rotating shaft (251), and the outer wall of the scraper (26) is in contact with the outer wall of the cooling cylinder (27); a water inlet (271) is fixedly mounted on the top of the cooling cylinder (27), the water inlet (271) passes through the top of the tank body (20) and is coaxially keyed to a second gear (272), and the first gear (25) is meshed with the second gear (272); a drain outlet (273) is fixedly mounted on the bottom of the cooling cylinder (27), and the drain outlet (273) passes through to the outside; a water inlet pipe (29) is provided between the tops of the two water inlets (271), and the water inlet pipe (29) is rotatably connected to the water inlet (271).

2. The desublimation cooling, conveying and processing system for phosphorus pentoxide production according to claim 1, characterized in that: The top of the tank body (20) is fixedly connected to a bracket (22) via bolts, and the water inlet pipe (29) is fixedly connected to the top of the bracket (22) via bolts.

3. The desublimation cooling, conveying and processing system for phosphorus pentoxide production according to claim 2, characterized in that: The bottom center of the bracket (22) is fixedly connected to a fixing frame (221) by means of bolts, and the motor (28) is fixedly connected to the fixing frame (221) by means of bolts.

4. The desublimation cooling, conveying and processing system for phosphorus pentoxide production according to claim 1, characterized in that: The collecting bin (21) is fixedly connected to the discharge pipe (201) by means of bolts, and the collecting bin (21) is a product made of polyethylene plastic.

5. The desublimation cooling, conveying and processing system for phosphorus pentoxide production according to claim 1, characterized in that: The plurality of cigarette spray heads (241) are linearly distributed at equal intervals in the vertical direction, and the cigarette spray heads (241) and the extension tube (24) are an integrally formed structure.

6. The desublimation cooling, conveying and processing system for phosphorus pentoxide production according to claim 1, characterized in that: The cross-sectional shape of the cooling cylinder (27) is annular, and the cooling cylinder (27) is a product made of stainless steel.

7. The desublimation cooling, conveying and processing system for phosphorus pentoxide production according to claim 1, characterized in that: The overall shape of the connecting ring (23) is annular, and the connecting ring (23) is fixedly connected to the extension tube (24) by bolts.

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