Simple urea granulation cooling and collecting device

Abstract

The invention discloses a simple urea granulating, cooling and collecting device, relates to the technical field of urea device granulating and collecting systems, and solves the technical problem of cooling. Comprising a granulation tower, a storage box is fixedly mounted at the top of the granulation tower, a granulation nozzle is mounted on one side, close to the granulation tower, of the storage box in a communicating manner, and a cooling assembly is arranged in the granulation tower; the cooling assembly comprises a first funnel fixedly mounted on the inner wall of the granulation tower, a funnel bracket is fixedly mounted at the inner bottom of the granulation tower, and a second funnel and a third funnel are fixedly mounted on the funnel bracket; compared with the prior art, scraping equipment is omitted, the investment is reduced, the power consumption of the scraping equipment is saved, the operation cost of the urea device is reduced, in addition, cooling coils are arranged on the outer surfaces of the three funnels, the temperature of urea particles is reduced, urea dust is reduced, and the yield of urea is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of urea device granulation and collection systems, in particular to a simple urea granulation cooling and collection device. Background Art

[0002] The final urea products of the urea plant are usually divided into large granular urea and small granular urea. The small granular urea is usually produced by tower granulation. The molten urea is formed into droplets through the granulation nozzle and falls from the top of the granulation tower. It exchanges heat with the air entering from the bottom of the tower and finally forms granular urea that falls to the bottom of the granulation tower.

[0003] The collection at the bottom of the traditional granulation tower adopts a concrete funnel structure, and a scraper is installed on the concrete funnel to collect urea granules through the scraper. When the temperature is high in summer, the molten urea exchanges heat with the hot air, and the cooling amount is reduced. When the urea reaches the bottom of the granulation tower, the temperature is high and granules cannot be formed well. The amount of dust is large. For this reason, based on the technical defects, we have proposed a simple urea granulation cooling and collection device that can solve the above problems. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; for this purpose, the scraping equipment is eliminated, the investment is reduced, and the power consumption of the scraping equipment is saved, so the operating cost of the urea device is reduced. In addition, since cooling coils are arranged on the outer surfaces of the three funnels, the temperature of the urea particles is reduced, the urea dust is reduced, and the yield of urea is increased. The present invention proposes a simple urea granulation cooling and collecting device.

[0005] A simple urea granulation cooling and collecting device comprises a granulation tower, a material storage box is fixedly installed on the top of the granulation tower, a granulation nozzle is connected and installed on one side of the material storage box close to the granulation tower, and a cooling component is arranged in the granulation tower; The cooling assembly includes a first funnel fixedly mounted on the inner wall of a granulation tower, a funnel bracket fixedly mounted on the inner bottom of the granulation tower, a second funnel and a third funnel fixedly mounted on the funnel bracket, a funnel platform fixedly mounted on one side of the second funnel and the third funnel close to the first funnel, a cooling coil fixedly mounted on the outer surfaces of the first funnel, the second funnel and the third funnel, and a cleaning unit provided on the funnel platform.

[0006] As a further solution of the present invention: the cleaning unit includes a scraper slidably installed on the inner walls of the second funnel and the third funnel, a slide groove is opened on the funnel platform, a sliding column is slidably installed in the slide groove, a limiting plate is fixedly installed on the end of the sliding column away from the first funnel, and a slide plate is fixedly installed on the sliding column.

[0007] As a further solution of the present invention: the slide plate is slidably mounted on the funnel platform, the funnel platform is mounted on the funnel bracket, and the second funnel is mounted between the first funnel and the third funnel.

[0008] As a further solution of the present invention: a collecting assembly is arranged in the granulation tower, and the collecting assembly includes a collecting box fixedly installed on the side of the third funnel away from the second funnel, a filter plate is fixedly installed in the collecting box, a transport pipe is fixedly installed in the collecting box, an auger is rotatably installed in the transport pipe, and a first motor is fixedly installed on one side of the collecting box.

[0009] As a further solution of the present invention: a condenser tube is sheathed on the outer surface of the transport pipe, and a protective sheath is sheathed on one end of the transport pipe away from the collecting box.

[0010] As a further solution of the present invention: the condenser is installed between the protective sleeve and the transport pipe, the output end of the first motor slides through the collecting box and is fixedly installed on the rotating shaft of the auger, the filter plate is obliquely installed on the inner wall of the collecting box, and one side of the filter plate is fixedly installed on the transport pipe.

[0011] As a further solution of the present invention: a swinging assembly is provided on the collecting box, and the swinging assembly includes a fixed plate fixedly installed on the inner wall of the collecting box on one side close to the third funnel, a mounting rod is rotatably installed between the fixed plate and the inner wall of the collecting box, a swinging plate is rotatably installed on the mounting rod, and a second motor is fixedly installed on one side of the collecting box.

[0012] As a further solution of the present invention: an elastic rope is fixedly installed on one side of the swing plate close to the filter plate, and a knocking ball is fixedly installed on one end of the elastic rope close to the filter plate.

[0013] As a further solution of the present invention: the output end of the second motor slides through the filter plate and is fixedly mounted on the mounting rod, and the swing plate and the mounting rod are mounted directly below the third funnel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The urea particles entering the bottom of the granulation tower are directly collected by a funnel, eliminating the traditional scraping equipment and saving equipment investment. Since the scraping equipment is electrically driven, it also saves electricity consumption. In addition, when using a scraper to collect, the scraping equipment itself has a high failure rate, and there are many urea particle fragments caused by scraping. In addition, the cooling coil can further reduce the temperature of the urea particles, increase the integrity of the urea particles, reduce the occurrence of urea dust, reduce the loss of urea, and improve the economy of the device.

[0015] The condenser in the collection assembly facilitates further cooling operations, which is beneficial to further improving the cooling capacity of the device, facilitates collection and filtration, which is beneficial to improving the filtration capacity of the device, reduces urea dust, and increases the yield of urea.

[0016] The knocking ball in the swing assembly facilitates knocking vibration and dispersed material operation, which is beneficial to improving the knocking and vibration capacity of the device, improving the anti-blocking capacity of the device, and improving the dispersed filtering capacity of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a simple urea granulation cooling and collecting device of the present invention; Figure 2 This is a schematic diagram of the internal structure of a simple urea granulation cooling and collecting device of the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 5 This is a schematic diagram of the structure of a simple urea granulation cooling and collecting device in a bottom view according to the present invention; Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0018] In the figure: 1. granulation tower; 2. storage box; 3. granulation nozzle; 4. cooling assembly; 41. first funnel; 42. second funnel; 43. third funnel; 44. funnel platform; 45. cooling coil; 46. funnel bracket; 47. scraper; 48. slide; 49. slide column; 410. slide plate; 411. limit plate; 5. collection assembly; 51. collection box; 52. filter plate; 53. transport pipe; 54. auger; 55. condenser; 56. first motor; 57. protective cover; 6. swing assembly; 61. fixed plate; 62. mounting rod; 63. swing plate; 64. second motor; 65. elastic rope; 66. knocking ball. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1 See also Figure 1 - Figure 6The present application provides a simple urea granulation cooling and collection device, 1. It includes a granulation tower 1. A storage box 2 is fixedly installed on the top of the granulation tower 1. The storage box 2 is used to store molten urea. A granulation nozzle 3 is installed on the side of the storage box 2 close to the granulation tower 1. The molten urea in the storage box 2 is sprayed into the granulation tower 1 through the granulation nozzle 3, and heat is exchanged with the air entering from the bottom of the granulation tower 1. The molten urea becomes solid particles and enters the first funnel 41 at the bottom of the granulation tower 1. After being collected, it enters the second funnel 42 and then the third funnel 43. Finally, all of them are collected and sent out of the granulation tower 1 through the collection component 5. The traditional scraper system is eliminated. A cooling component 4 is arranged in the granulation tower 1; The cooling assembly 4 includes a first funnel 41 fixedly mounted on the inner wall of the granulation tower 1, the first funnel 41 is directly connected to the inner wall of the granulation tower 1, a funnel bracket 46 is fixedly mounted on the inner bottom of the granulation tower 1, a second funnel 42 and a third funnel 43 are fixedly mounted on the funnel bracket 46, an annular gap is provided between the first funnel 41 and the second funnel 42 for manual cleaning, and an operating space is located on a funnel platform 44 on the second funnel 42, similarly, an annular gap is provided between the second funnel 42 and the third funnel 43 for manual cleaning, and an operating space is located on a funnel platform 44 on the third funnel 43, a funnel platform 44 is fixedly mounted on one side of the second funnel 42 and the third funnel 43 close to the first funnel 41, and the first funnel 41 and the second funnel 42 are fixedly mounted on the second funnel 41. The first funnel 42 and the third funnel 43 are multi-section type, each section is not connected to each other, and there is an annular gap between every two sections, and a funnel platform 44 is set at the annular gap for easy cleaning. The first funnel 41, the second funnel 42 and the third funnel 43 are fixedly installed with cooling coils 45 on their outer surfaces. The cooling coils 45 are longitudinally cut steel pipes, spirally welded on the outer side of the steel structure funnel, and circulating water flows inside the coils. The cooling coils 45 are filled with circulating water. The temperature of the urea granules is further reduced by circulating water, which can increase the integrity of the urea granules, reduce urea dust, reduce the adhesion of urea to the funnel, and reduce the difficulty of cleaning. The number and diameter of the cooling coils 45 can also be adjusted according to the diameter of the granulation tower. A cleaning unit is set on the funnel platform 44; The cleaning unit includes a scraper 47 slidably mounted on the inner walls of the second funnel 42 and the third funnel 43. The scraper 47 is started to clean the inner walls of the second funnel 42 and the third funnel 43. A slide groove 48 is opened on the funnel platform 44. A slide column 49 is slidably installed in the slide groove 48. A limit plate 411 is fixedly installed at the end of the slide column 49 away from the first funnel 41. The limit plate 411 plays the role of limiting and stabilizing the slide column 49. A slide plate 410 is fixedly installed on the slide column 49. The slide plate 410 is slidably mounted on the funnel platform 44. The slide plate 410 plays the role of supporting the slide column 49. The funnel platform 44 is installed on the funnel bracket 46 to facilitate manual cleaning operations. The second funnel 42 is installed between the first funnel 41 and the third funnel 43.

[0021] In summary, when using the device, first start the granulation nozzle 3, so that the granulation nozzle 3 sprays the molten urea in the storage box 2 into the granulation tower 1, and exchanges heat with the air entering from the bottom of the granulation tower 1. The molten urea becomes solid particles and enters the first funnel 41 at the bottom of the granulation tower 1. After being collected, it enters the second funnel 42 and then the third funnel 43. At the same time, the cooling coil 45 is started to cool the urea particles in the first funnel 41, the second funnel 42 and the third funnel 43. Finally, all of them are collected and sent out of the granulation tower 1. Finally, the staff stands on the funnel platform 44 and pushes The scraper 47 scrapes the inner walls of the second funnel 42 and the third funnel 43, and at the same time, the scraper 47 drives the slide column 49 to slide in the slide groove 48, and at the same time, the slide column 49 drives the slide plate 410 and the limit plate 411 to slide on the funnel platform 44, so as to facilitate the cleaning of the funnel equipment, improve the cleaning capacity of the device, eliminate the scraping equipment, reduce the investment, and reduce the power consumption of the scraping equipment, thereby reducing the operating cost of the urea device. In addition, since the cooling coils are arranged on the outer surfaces of the three funnels, the temperature of the urea particles is reduced, the urea dust is reduced, and the yield of urea is increased.

[0022] Embodiment 2 See also Figure 2-Figure 5 On the basis of the first embodiment, a collecting assembly 5 is provided in the granulation tower 1. The collecting assembly 5 includes a collecting box 51 fixedly installed on the side of the third funnel 43 away from the second funnel 42. The collecting box 51 collects urea particles. A filter plate 52 is fixedly installed in the collecting box 51. The filter plate 52 filters fine dust. A transport pipe 53 is fixedly installed in the collecting box 51. An auger 54 is rotatably installed in the transport pipe 53. The auger 54 transports the urea particles in the collecting box 51. A first motor 56 is fixedly installed on one side of the collecting box 51. A condenser 55 is provided on the outer surface of the transport pipe 53. The condenser 55 further cools the urea particles in the transport pipe 53. A protective cover 57 is provided at one end of the transport pipe 53 away from the collecting box 51. The protective cover 57 keeps warm.

[0023] The condenser 55 is installed between the protective cover 57 and the transport pipe 53, which is convenient for cooling the urea particles. The output end of the first motor 56 slides through the collecting box 51 and is fixedly installed on the rotating shaft of the auger 54, which is convenient for driving the auger 54 to rotate and transport the urea particles. The filter plate 52 is obliquely installed on the inner wall of the collecting box 51, and one side of the filter plate 52 is fixedly installed on the transport pipe 53. The condenser 55 is convenient for further cooling operations, which is beneficial to further improve the cooling capacity of the device, facilitate collection and filtration, and is beneficial to improve the filtration capacity of the device, reduce urea dust, and increase the yield of urea.

[0024] To sum up, when using the device, first, the urea granules are allowed to pass through the third funnel 43 into the collecting box 51, and at the same time, the urea granules are allowed to pass through the filter plate 52 into the transport pipe 53, and then the first motor 56 and the condenser 55 are started, so that the output end of the first motor 56 drives the auger 54 to rotate in the transport pipe 53, and at the same time, the condenser 55 further cools the urea granules in the transport pipe 53, so that the auger 54 transports the urea granules out of the granulation tower 1, which is convenient for the collection operation. The condenser 55 is convenient for further cooling operation, which is beneficial to further improve the cooling capacity of the device, facilitates collection and filtration, and is beneficial to improve the filtration capacity of the device, reduces urea dust, and increases the yield of urea.

[0025] Embodiment 3 See also Figure 2 - Figure 5 On the basis of the first and second embodiments, a swing assembly 6 is provided on the collecting box 51, and the swing assembly 6 includes a fixed plate 61 fixedly mounted on the inner wall of the collecting box 51 on the side close to the third funnel 43, and a mounting rod 62 is rotatably mounted between the fixed plate 61 and the inner wall of the collecting box 51, and a swing plate 63 is rotatably mounted on the mounting rod 62. The mounting rod 62 is convenient for driving the swing plate 63 to swing, so as to break up and distribute the urea particles in the third funnel 43, and facilitate the dispersed filtering operation. A second motor 64 is fixedly mounted on one side of the collecting box 51.

[0026] An elastic rope 65 is fixedly installed on one side of the swing plate 63 close to the filter plate 52, and the elastic rope 65 plays a role of elastic expansion and contraction. A knocking ball 66 is fixedly installed on one end of the elastic rope 65 close to the filter plate 52. Under the action of the elastic rope 65, the knocking ball 66 plays a role of knocking the filter plate 52, and plays a role of vibrating to prevent the filter plate 52 from being blocked, which is beneficial to improving the anti-blocking ability of the device. The output end of the second motor 64 slides through the filter plate 52 and is fixedly installed on the mounting rod 62. The swing plate 63 and the mounting rod 62 are installed directly below the third funnel 43, which is convenient for knocking and vibration, and convenient for dispersed material transfer operations, which is beneficial to improving the knocking and vibration ability of the device, the anti-blocking ability of the device, and the dispersed filtering ability of the device.

[0027] To sum up, when using the device, first start the second motor 64 so that the output end of the second motor 64 drives the mounting rod 62 to rotate, and at the same time, the mounting rod 62 drives the swing plate 63 to swing left and right. At the same time, the swing plate 63 drives the knocking ball 66 to knock the filter plate 52 left and right through the elastic rope 65, which is convenient for knocking and vibration, and convenient for dispersed material transfer operations, which is beneficial to improving the knocking and vibration ability of the device, improving the anti-blocking ability of the device, and improving the dispersed filtering ability of the device.

[0028] Working principle of the present invention: When using the device, first start the granulation nozzle 3, so that the granulation nozzle 3 sprays the molten urea in the storage box 2 into the granulation tower 1, and exchanges heat with the air entering from the bottom of the granulation tower 1. The molten urea becomes solid particles and enters the first funnel 41 at the bottom of the granulation tower 1. After being collected, it enters the second funnel 42 and then enters the third funnel 43. At the same time, the cooling coil 45 is started to cool the urea particles in the first funnel 41, the second funnel 42 and the third funnel 43, so that the urea particles pass through the third funnel 43 and enter the collection box 51. At the same time, the urea particles pass through the filter plate 52 and enter The urea granules in the transport pipe 53 are further cooled by the condenser 55, so that the auger 54 transports the urea granules out of the granulation tower 1. At the same time, the second motor 64 is started, so that the output end of the second motor 64 drives the mounting rod 62 to rotate, and the mounting rod 62 drives the swing plate 63 to swing left and right. At the same time, the swing plate 63 drives the knocking ball 66 to knock the filter plate 52 left and right through the elastic rope 65, which is convenient for knocking and vibration, and convenient for dispersed material operation.

[0029] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A simple urea granulation cooling and collecting device, comprising a granulation tower (1), characterized in that: A material storage box (2) is fixedly installed on the top of the granulation tower (1); a granulation nozzle (3) is installed on the side of the material storage box (2) close to the granulation tower (1); and a cooling component (4) is arranged inside the granulation tower (1); The cooling assembly (4) comprises a first funnel (41) fixedly mounted on the inner wall of a granulation tower (1); a funnel bracket (46) is fixedly mounted on the inner bottom of the granulation tower (1); a second funnel (42) and a third funnel (43) are fixedly mounted on the funnel bracket (46); a funnel platform (44) is fixedly mounted on one side of the second funnel (42) and the third funnel (43) close to the first funnel (41); cooling coils (45) are fixedly mounted on the outer surfaces of the first funnel (41), the second funnel (42) and the third funnel (43); and a cleaning unit is arranged on the funnel platform (44).

2. A simple urea granulation cooling and collecting device according to claim 1, characterized in that: The cleaning unit comprises a scraper (47) slidably mounted on the inner walls of the second funnel (42) and the third funnel (43); a slide groove (48) is provided on the funnel platform (44); a slide column (49) is slidably installed in the slide groove (48); a limit plate (411) is fixedly mounted on one end of the slide column (49) away from the first funnel (41); and a slide plate (410) is fixedly mounted on the slide column (49).

3. A simple urea granulation cooling and collecting device according to claim 2, characterized in that: The slide plate (410) is slidably mounted on a funnel platform (44), the funnel platform (44) is mounted on a funnel support (46), and the second funnel (42) is mounted between the first funnel (41) and the third funnel (43).

4. The simple urea granulation cooling and collecting device according to claim 1 is characterized in that: A collecting assembly (5) is arranged in the granulation tower (1), and the collecting assembly (5) comprises a collecting box (51) fixedly mounted on a side of the third funnel (43) away from the second funnel (42), a filter plate (52) fixedly mounted in the collecting box (51), a transport pipe (53) fixedly mounted in the collecting box (51), an auger (54) rotatably mounted in the transport pipe (53), and a first motor (56) fixedly mounted on one side of the collecting box (51).

5. A simple urea granulation cooling and collecting device according to claim 4, characterized in that: The outer surface of the transport pipe (53) is sheathed with a condensation pipe (55), and one end of the transport pipe (53) away from the collection box (51) is sheathed with a protective sheath (57).

6. A simple urea granulation cooling and collecting device according to claim 5, characterized in that: The condensing tube (55) is installed between the protective sleeve (57) and the transport pipe (53); the output end of the first motor (56) slides through the collecting box (51) and is fixedly installed on the rotating shaft of the auger (54); the filter plate (52) is installed obliquely on the inner wall of the collecting box (51); and one side of the filter plate (52) is fixedly installed on the transport pipe (53).

7. A simple urea granulation cooling and collecting device according to claim 6, characterized in that: The collection box (51) is provided with a swing assembly (6), the swing assembly (6) comprising a fixed plate (61) fixedly mounted on the inner wall of the collection box (51) on a side close to the third funnel (43), a mounting rod (62) rotatably mounted between the fixed plate (61) and the inner wall of the collection box (51), a swing plate (63) rotatably mounted on the mounting rod (62), and a second motor (64) fixedly mounted on one side of the collection box (51).

8. The simple urea granulation cooling and collecting device according to claim 7 is characterized in that: An elastic rope (65) is fixedly mounted on one side of the swing plate (63) close to the filter plate (52), and a knocking ball (66) is fixedly mounted on one end of the elastic rope (65) close to the filter plate (52).

9. The simple urea granulation cooling and collecting device according to claim 7, characterized in that: The output end of the second motor (64) slides through the filter plate (52) and is fixedly mounted on the mounting rod (62); the swing plate (63) and the mounting rod (62) are mounted directly below the third funnel (43).

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