A cooling device for the discharge material of a reaction kettle in the production of polyphosphoric acid humic acid ammonium potassium

Abstract

The utility model discloses a kind of cooling device of polyphosphoric humic acid ammonium potassium production in reaction kettle discharge material, belong to fertilizer field, including the horizontal cooling tank body by inner layer and outer layer, cooling jacket is formed between the inner layer and outer layer of horizontal cooling tank body, inner layer encloses cooling cavity, the tank body top of horizontal cooling tank body is provided with the material inlet that communicates with cooling cavity, bottom is provided with the discharge pipe that communicates with cooling cavity, horizontal cooling tank body is also provided with the circulating water inlet that communicates with cooling jacket and the circulating water outlet that communicates with cooling jacket. The utility model can quickly reduce temperature production efficiency, also prevent material reunion as large block material after cooling.

Description

Technical Field

[0001] This utility model relates to the production of potassium ammonium humate phosphate, and more specifically, to a cooling device for the discharge material from the reactor in the production of potassium ammonium humate polyphosphate. Background Technology

[0002] Potassium ammonium humate polyphosphate is a high-performance nitrogen and phosphorus fertilizer. Currently, the production of potassium ammonium ammonium humate polyphosphate involves reacting raw materials in a reactor at high temperature. The discharge temperature is above 200℃, and the material is in a molten state. The material needs to be cooled to below 50℃ to solidify after being discharged from the reactor.

[0003] The existing cooling method is fresh air replacement cooling. The material discharged from the reactor is cooled in a square silo. The top of the square silo is open, and a fan provides fresh air to the material discharged into the square silo to cool it. The dust collection hood draws away the gas through the exhaust fan.

[0004] Existing cooling methods have the following shortcomings:

[0005] (1) The cooling process takes more than 60 minutes, which is quite long.

[0006] (2) During the cooling process, the material will continuously release residual ammonia gas, and the open collection system has low collection efficiency.

[0007] (3) After the material cools, it agglomerates into large pieces, which need to be crushed by a double roller crusher and manually fed to the downstream crushing system. Utility Model Content

[0008] To address the aforementioned problems, this utility model provides a cooling device for the discharge material from the reactor in the production of potassium ammonium humate polyphosphate. This cooling device aims to improve at least one of the problems mentioned in the background art.

[0009] A cooling device for the discharge material from the reactor in the production of potassium ammonium humate polyphosphate includes a horizontal cooling tank composed of an inner layer and an outer layer. A cooling jacket is formed between the inner and outer layers of the horizontal cooling tank, and the inner layer surrounds a cooling cavity. A material inlet communicating with the cooling cavity is provided on the top of the horizontal cooling tank, and a discharge pipe communicating with the cooling cavity is provided at the bottom. The horizontal cooling tank is also provided with a circulating water inlet communicating with the cooling jacket and a circulating water outlet communicating with the cooling jacket.

[0010] Optionally, at least two plow blades are provided in the cooling chamber along the direction of the tank body. The plow blades are mounted on a first rotating shaft, and one end of the first rotating shaft extends out of the horizontal cooling tank and is connected to the first power mechanism.

[0011] Optionally, the plow blades are four in number, equidistantly mounted on the first rotating shaft, with the angle between the side projections of two adjacent plow blades being 120°.

[0012] Optionally, at least two dispersing blades are also installed in the cooling chamber. Each dispersing blade is connected to a second rotating shaft. The other end of each second rotating shaft extends out of the body of the horizontal cooling tank and is connected to a second power mechanism.

[0013] Optionally, each end of the first rotating shaft is provided with a plow blade scraper, and the other end of the plow blade scraper is engaged with the inner wall of the head or tail of the horizontal cooling tank.

[0014] Optionally, each end of the first rotating shaft is provided with a plow blade, and the other end of the plow blade is engaged with the inner wall of the head or tail of the horizontal cooling tank. A dispersing blade is provided between each plow blade and the adjacent plow blade head, and between two adjacent plow blade heads.

[0015] Optionally, a flap valve is installed at the outlet of the discharge pipe.

[0016] Optionally, the top of the horizontal cooling tank is provided with an exhaust pipe communicating with the cooling chamber. A sintered plate dust collector is installed on the exhaust pipe, and a tail gas collection interface is provided at the other end of the exhaust pipe, which is connected to the ammonia washing tower.

[0017] Optionally, the top of the horizontal cooling tank is provided with a demineralized water inlet communicating with the cooling chamber, and the bottom is provided with a wash water discharge port communicating with the cooling chamber. The wash water discharge port is equipped with a downward-expanding discharge valve with an integrated thermocouple.

[0018] Optionally, the horizontal cooling tank is mounted on a platform equipped with a weighing sensor via a bracket.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention not only provides cooling through circulating water, which quickly lowers the temperature and greatly saves cooling time, thus improving production efficiency, but also prevents materials from agglomerating into large pieces after cooling. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the overall structure of this utility model;

[0024] Figure 3 This is a top view schematic diagram of the overall structure of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Plow blade drive motor; 2. First rotating shaft reducer; 3. Plow blade scraper; 4. Circulating water inlet; 5. Material inlet; 6. Air inlet valve interface; 7. Manhole cover; 8. Demineralized water inlet; 9. Sintered plate dust collector; 10. Tail gas collection interface; 11. Cooling jacket; 12. Weighing sensor; 13. Circulating water outlet; 14. Observation window; 15. Flip valve; 16. Dispersing fly knife; 17. Plow blade head; 18. Wash water discharge interface; 19. Thermocouple; 20. Downward-expanding discharge valve; 21. Fly knife drive motor; 22. Horizontal cooling tank; 23. Exhaust pipe; 24. Cooling chamber; 25. Discharge pipe; 26. First rotating shaft; 27. Second rotating shaft. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise precisely specified.

[0028] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0031] Please refer to Figures 1-3 , Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a side view of the overall structure of this utility model. Figure 3 This is a top view schematic diagram of the overall structure of this utility model.

[0032] A cooling device for the discharge material from the reactor in the production of potassium ammonium humate polyphosphate includes a horizontal cooling tank 22 composed of an inner layer and an outer layer. The left and right ends of the horizontal cooling tank 22 are sealed. A cooling jacket 11 is formed between the inner and outer layers of the horizontal cooling tank 22. The inner layer surrounds a cooling cavity 24. A material inlet 5 communicating with the cooling cavity 24 is provided on the top of the tank body of the horizontal cooling tank 22. A discharge pipe 25 communicating with the cooling cavity 24 is provided at the bottom. The horizontal cooling tank 22 is also provided with a circulating water inlet 4 communicating with the cooling jacket 11 and a circulating water outlet 13 communicating with the cooling jacket 11.

[0033] Through the cooling jacket 11, cooling chamber 24, circulating water inlet 4, and circulating water outlet 13, the material discharged from the reactor in the production of potassium ammonium humate polyphosphate at temperatures above 200°C enters the cooling chamber 24 from the material inlet 5. The circulating water in the cooling jacket 11 provides cooling, which quickly reduces the temperature, greatly saves the cooling process time, and improves production efficiency.

[0034] In one or more specific embodiments of this utility model, to prevent the material from agglomerating into large lumps after cooling, at least two plow blades 17 are arranged along the tank body direction in the cooling chamber 24. The plow blades 17 are mounted on a first rotating shaft 26. One end of the first rotating shaft 26 extends out of the horizontal cooling tank body 22 and is connected to a first rotating shaft reducer 2. The other end of the first rotating shaft reducer 2 is connected to a plow blade drive motor 1. During operation, the plow blades 17, driven by the rotation of the first rotating shaft 26, prevent the material from agglomerating into large lumps after static cooling. Of course, those skilled in the art should know that the first rotating shaft 26 can also be driven by gas, such as hydraulic or pneumatic methods. This is not particularly limited here, and those skilled in the art can choose according to their needs.

[0035] In one or more specific embodiments of this utility model, in order to better prevent the material from agglomerating into large pieces after cooling, there are four plow blades 17, which are equidistantly installed on the first rotating shaft 26, and the angle between the side projections of two adjacent plow blades 17 is 120°.

[0036] In one or more specific embodiments of this utility model, to further improve the effect of preventing materials from agglomerating into large pieces after cooling, at least two dispersing blades 16 are also installed in the cooling chamber 24. Each dispersing blade is connected to a second rotating shaft 27, and the other end of each second rotating shaft 27 extends out of the body of the horizontal cooling tank 22 and is connected to a blade drive motor 21. During operation, the plow blade head 17 drives the material to the high-speed rotating dispersing blades 16 on the side, where the blades of the dispersing blades 16 break the material into finer particles. Of course, those skilled in the art should know that the second rotating shaft 27 can also be driven by gas, such as hydraulic or pneumatic methods, without particular limitation, and those skilled in the art can choose according to their needs.

[0037] In one or more specific embodiments of this utility model, to further improve the effect of preventing materials from agglomerating into large lumps after cooling, a plow scraper 3 is provided at each end of the first rotating shaft 26, and the other end of the plow scraper 3 cooperates with the inner wall of the head or tail of the horizontal cooling tank 22. During operation, as the first rotating shaft 26 rotates, it drives the plow scraper 3 to move on the inner wall of the head or tail of the cooling tank 22, scraping off the material adhering to the wall.

[0038] In one or more specific embodiments of this utility model, in order to further achieve a better effect of preventing materials from agglomerating into large pieces after cooling, a dispersing blade 16 is provided between each plow scraper 3 and the adjacent plow blade head 17, and between two adjacent plow blade heads 17.

[0039] In one or more specific embodiments of this utility model, a flap valve 15 is installed at the outlet of the discharge pipe 25 to facilitate material discharge.

[0040] In one or more specific embodiments of this utility model, in order to discharge the residual ammonia gas continuously released during the cooling process, an exhaust pipe 23 communicating with the cooling chamber 24 is provided on the top of the horizontal cooling tank 22. A sintered plate dust collector 9 is installed on the exhaust pipe 23, and a tail gas collection interface 10 is provided at the other end of the exhaust pipe 23. The tail gas collection interface 10 is connected to the ammonia scrubbing tower, and the residual tail gas released during the cooling process is absorbed into the ammonia scrubbing tower through the sintered plate filter. The closed collection method not only improves the collection efficiency but also reduces the burden on the working environment.

[0041] In one or more specific embodiments of this utility model, in order to remove the wall-adhering material generated during the cooling process, the top of the horizontal cooling tank 22 is provided with a demineralized water inlet 8 communicating with the cooling chamber 24, and the bottom is provided with a wash water discharge port 18 communicating with the cooling chamber 24. The wash water discharge port 18 is equipped with a downward-expanding discharge valve 20 integrating a thermocouple 19. The thermocouple 19 detects the temperature of the cooled material during the cooling process. During cleaning, the wall-adhering material is demineralized and hydrolyzed as a potassium ammonium humate polyphosphate solution. After cleaning, the downward-expanding discharge valve 20 is opened to transport the solution to the potassium ammonium humate polyphosphate liquid tank as raw material for liquid fertilizer. After discharge, the downward-expanding discharge valve 20 is closed.

[0042] In one or more specific embodiments of this utility model, in order to quickly air dry the wet cooling chamber 24 after cleaning, the top of the horizontal cooling tank 22 is provided with an air inlet valve interface 6 that communicates with the cooling chamber 24.

[0043] In one or more specific embodiments of this utility model, in order to monitor the amount of cooling material processed, the horizontal cooling tank 22 is mounted on a platform with a weighing sensor 12 installed by a bracket, and the amount of cooling material processed can be obtained by the change in weight.

[0044] In one or more specific embodiments of this utility model, a manhole cover 7 is provided on the horizontal cooling tank 22 for convenient maintenance and repair.

[0045] In one or more specific embodiments of this utility model, an observation window 14 is provided on the horizontal cooling tank 22 for easy observation.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cooling device for the discharge material of a reaction kettle in the production of polyphosphate humic acid ammonium potassium, characterized in that, The horizontal cooling tank (22) consists of an inner layer and an outer layer. A cooling jacket (11) is formed between the inner and outer layers of the horizontal cooling tank (22). The inner layer forms a cooling cavity (24). A material inlet (5) communicating with the cooling cavity (24) is provided on the top of the tank body of the horizontal cooling tank (22). A discharge pipe (25) communicating with the cooling cavity (24) is provided at the bottom. The horizontal cooling tank (22) is also provided with a circulating water inlet (4) communicating with the cooling jacket (11) and a circulating water outlet (13) communicating with the cooling jacket (11).

2. The cooling device for the discharge material of the reaction kettle in the production of polyphosphate humic acid ammonium potassium according to claim 1, characterized in that, At least two plow blades (17) are provided in the cooling chamber (24) along the direction of the tank body. The plow blades (17) are mounted on the first rotating shaft (26). One end of the first rotating shaft (26) passes through the horizontal cooling tank body (22) and is connected to the first power mechanism.

3. The cooling device for the discharge material of the reaction kettle in the production of polyphosphate humic acid ammonium potassium according to claim 2, characterized in that, There are four plow blades (17), which are equidistantly mounted on the first rotating shaft (26), and the angle between the side projections of two adjacent plow blades (17) is 120°.

4. The cooling device for the discharge material of the reaction kettle in the production of polyphosphate humic acid ammonium potassium according to claim 2, characterized in that, At least two dispersing blades (16) are also installed in the cooling chamber (24). Each dispersing blade is connected to a second rotating shaft (27). The other end of each second rotating shaft (27) extends out of the body of the horizontal cooling tank (22) and is connected to a second power mechanism.

5. The cooling device for the discharge material of the reaction kettle in the production of polyphosphate humic acid ammonium potassium according to claim 2, characterized in that, Each end of the first rotating shaft (26) is provided with a plow scraper (3), and the other end of the plow scraper (3) is engaged with the inner wall of the head or tail of the horizontal cooling tank (22).

6. The cooling device for the discharge material from the reactor in the production of potassium ammonium humate polyphosphate according to claim 4, characterized in that, Each end of the first rotating shaft (26) is provided with a plow scraper (3), and the other end of the plow scraper (3) is engaged with the inner wall of the head or tail of the horizontal cooling tank (22). A dispersing blade (16) is provided between each plow scraper (3) and the adjacent plow blade head (17), and between two adjacent plow blade heads (17).

7. The cooling device for the discharge material from the reactor in the production of potassium ammonium humate polyphosphate according to any one of claims 1-6, characterized in that, A flap valve (15) is installed at the outlet of the discharge pipe (25).

8. The cooling device for the discharge material from the reactor in the production of potassium ammonium humate polyphosphate according to any one of claims 1-6, characterized in that, The top of the horizontal cooling tank (22) is provided with an exhaust pipe (23) that communicates with the cooling chamber (24). A sintered plate dust collector (9) is installed on the exhaust pipe (23) and connected to it. The other end of the exhaust pipe (23) is provided with a tail gas collection interface (10) that is connected to the ammonia washing tower.

9. The cooling device for the discharge material from the reactor in the production of potassium ammonium humate polyphosphate according to any one of claims 1-6, characterized in that, The horizontal cooling tank (22) has a demineralized water inlet (8) at the top of the tank body that communicates with the cooling chamber (24), and a wash water discharge port (18) at the bottom that communicates with the cooling chamber (24). The wash water discharge port (18) is equipped with a downward-expanding discharge valve (20) that integrates a thermocouple (19).

10. The cooling device for the discharge material from the reactor in the production of potassium ammonium humate polyphosphate according to any one of claims 1-6, characterized in that, The horizontal cooling tank (22) is mounted on a platform with a weighing sensor (12) by means of a bracket.

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