A fluidized bed cooling device for facilitating the rapid dispersion and cooling of compound fertilizer particles

Abstract

The present invention discloses a fluidized bed cooling device for facilitating the rapid dispersion and cooling of compound fertilizer particles, which comprises a fluidized bed body arranged obliquely. A cooling air duct is connected to the bottom end of the lower side of the fluidized bed body, and an air extraction duct is connected to the top end of the upper side. A material conveying pipe is hermetically connected to the lower end of the fluidized bed body, and the higher end is connected to a shunt diversion box. The shunt diversion box is arranged obliquely, and a dispersing pipe arranged obliquely is connected to the upper end of the shunt diversion box. During the operation of the present application, it is convenient to uniformly guide the compound fertilizer material to the shunt diversion box. Inside the shunt diversion box, since the material particles flow into the shunt diversion box evenly, they can conveniently flow into the space between the shunt diversion boxes, thereby facilitating the uniform dispersion of the material in the material cooling space of the fluidized bed body; thus, it is convenient for the cold air to uniformly blow up and suspend the material dispersed in the material cooling space, facilitating rapid cooling and transportation.

Description

Technical Field

[0001] The present invention relates to the field of compound fertilizer production applications, and particularly relates to a fluidized bed cooling device that facilitates the rapid dispersion and cooling of compound fertilizer particles. Background Art

[0002] Compound fertilizer refers to chemical fertilizer containing two or more nutrient elements. Compound fertilizers have the advantages of high nutrient content, few secondary components, and good physical properties, and play a very important role in balanced fertilization, improving fertilizer utilization rate, and promoting high and stable yields of crops.

[0003] In compound fertilizer production, soil nutrient conditions are mostly measured using soil testing and formulated fertilization. Soil testing and formulated fertilization is based on soil testing and fertilizer field trials, and according to the fertilizer requirement law of crops, soil fertilizer supply performance, and fertilizer effect, on the basis of reasonably applying organic fertilizers, the application amounts, fertilization periods, and application methods of fertilizers such as nitrogen, phosphorus, potassium, and medium and trace elements are proposed.

[0004] In the process of compound fertilizer production, a fluidized bed cooling step is required; however, in the prior art, the material to be cooled is directly transported onto the fluidized bed and then transported out after being cooled by the fluidized bed; however, in actual application, when the material is directly transported onto the fluidized bed, it is relatively concentrated, which is not convenient for the transportation of the fluidized bed on the one hand, and not convenient for the fluidized bed to blow up and suspend the compound fertilizer particles, and not convenient for the rapid cooling of the compound fertilizer particles. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a fluidized bed cooling device that facilitates the rapid dispersion and cooling of compound fertilizer particles. This device facilitates the uniform dispersion of the material onto the fluidized bed, facilitates the rapid transportation of the fluidized bed, and facilitates the rapid cooling of the compound fertilizer particles.

[0006] To solve the above technical problem, the solution of the present invention is as follows:

[0007] A fluidized bed cooling device that facilitates the rapid dispersion and cooling of compound fertilizer particles, including an inclined fluidized bed body. A cooling air duct is connected to the lower end of the fluidized bed body, and an induced air duct is connected to the upper end. The lower and lower end of the fluidized bed body is hermetically connected to a material conveying pipe, and the higher end is connected to a diversion and guiding box. The diversion and guiding box is inclined, and a dispersing pipe is connected to the upper end of the diversion and guiding box.

[0008] A number of diversion partitions are provided inside the diversion and guiding box.

[0009] The diversion and guiding box is an isosceles trapezoid structure, and the cross-section is a rectangular frame structure. The two sides of the diversion partition are connected to the upper inner wall and the lower inner wall of the diversion and guiding box, and a number of the diversion partitions are arranged at equal distances inside the diversion and guiding box.

[0010] A material dispersion net is arranged inside the dispersion pipe.

[0011] The material dispersion net successively includes a primary dispersion net, a secondary dispersion net, a tertiary dispersion net and a quaternary dispersion net from top to bottom. The primary dispersion net is a dispersion rod inserted into the upper and lower walls of the dispersion pipe. The secondary dispersion net is two dispersion rods inserted into the upper and lower walls of the dispersion pipe. The tertiary dispersion net is at least 4 dispersion rods inserted into the upper and lower walls of the dispersion pipe. The quaternary dispersion net is at least 8 dispersion rods inserted into the upper and lower walls of the dispersion pipe.

[0012] The inclination angle of the fluidized bed body with respect to the horizontal plane is 5 - 10°. The inclination angle of the shunt and diversion box with respect to the horizontal plane is 30 - 45°. The inclination angle of the dispersion pipe with respect to the horizontal plane is 45 - 60°.

[0013] The interior of the fluidized bed body includes a material cooling space and a cold air chamber. The material cooling space is located above the cold air chamber, and a ventilation gap is provided between the material cooling space and the cold air chamber for communication. The ventilation gap covers the bottom end of the material cooling space.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] During the operation of this application, after the compound fertilizer granular material flows into the interior of the dispersion pipe, the concentrated compound fertilizer granules are directly broken into two parts from the middle by the dispersion rod in the primary dispersion net. Subsequently, the two parts of the compound fertilizer granules are aimed at and scattered onto the dispersion rods on the secondary dispersion net, broken by the dispersion rods on the secondary dispersion net, scattered onto the dispersion rods on the tertiary dispersion net, broken by the dispersion rods on the tertiary dispersion net, scattered onto the dispersion rods on the quaternary dispersion net, and finally evenly flow into the shunt and diversion box. Inside the shunt and diversion box, since the material particles flow into the interior of the shunt and diversion box evenly, it is convenient to flow into the space between the shunt and diversion boxes, thereby facilitating the uniform dispersion of the material inside the material cooling space of the fluidized bed body. Subsequently, the cold air in the cold air chamber is evenly blown into the interior of the material cooling space through the ventilation gap, thereby facilitating the uniform blowing up and suspension of the dispersed material in the material cooling space, which is convenient for rapid cooling and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a sectional view of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the shunt and diversion box in the present invention;

[0019] Figure 4This is a schematic diagram of the internal structure of the shunt guide box and the dispersion pipe in the present invention. Detailed implementation manners

[0020] The following further describes the detailed implementation manners of the present invention in conjunction with the accompanying drawings. It should be noted here that the description of these implementation manners is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various implementation manners of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] As Figures 1-4 shown, a fluidized bed cooling device for facilitating the rapid dispersion and cooling of compound fertilizer particles includes an inclined fluidized bed body 1. The lower end of the fluidized bed body 1 is connected to a cooling air duct 2, and the upper end is connected to an air extraction duct 3. The lower and lower end of the fluidized bed body 1 is hermetically connected to a material conveying pipe 4, and the higher end is connected to a shunt guide box 5. The shunt guide box 5 is inclined, and the upper end of the shunt guide box 5 is connected to an inclined dispersion pipe 6.

[0022] A number of shunt partition plates 7 are provided inside the shunt guide box 5. The shunt partition plates 7 can facilitate the separation and diversion of compound fertilizer particles into the fluidized bed body 1, so as to facilitate the uniform dispersion of the compound fertilizer particle material inside the fluidized bed body, and further facilitate the transportation and rapid cooling.

[0023] The shunt guide box 5 has an isosceles trapezoid structure, and the cross-section is a rectangular frame structure. The two sides of the shunt partition plate 7 are connected to the upper and lower inner walls of the shunt guide box 5, and a number of the shunt partition plates 7 are arranged at equal distances inside the shunt guide box 5. The isosceles trapezoid structure of the shunt guide box 5 can facilitate the uniform dispersion and diversion of compound fertilizer on the fluidized bed.

[0024] A material dispersion net 8 is arranged inside the dispersion pipe 6. It is mainly to facilitate the dispersion of the concentrated compound fertilizer particle material, so as to facilitate the uniform introduction of the compound fertilizer particle material into the space formed by the shunt partition plates 7 inside the shunt guide box 5.

[0025] The material dispersion net 8 successively includes a first-level dispersion net 81, a second-level dispersion net 82, a third-level dispersion net 83 and a fourth-level dispersion net 84 from top to bottom. The first-level dispersion net 81 is a dispersion rod inserted into the upper and lower walls of the dispersion pipe 6. The second-level dispersion net 82 is two dispersion rods inserted into the upper and lower walls of the dispersion pipe 6. The third-level dispersion net 83 is at least 4 dispersion rods inserted into the upper and lower walls of the dispersion pipe 6. The fourth-level dispersion net 84 is at least 8 dispersion rods inserted into the upper and lower walls of the dispersion pipe 6.

[0026] The inclination angle of the fluidized bed body 1 with respect to the horizontal plane is 5 - 10°, the inclination angle of the shunt guide box 5 with respect to the horizontal plane is 30 - 45°, and the inclination angle of the dispersion pipe 6 with respect to the horizontal plane is 45 - 60°. The inclination angle of the fluidized bed body 1 with respect to the horizontal plane being 5 - 10° is mainly to facilitate the slow movement of the material, and thus facilitate its dispersion in the fluidized bed body 1 for rapid air cooling; the inclination angle of the shunt guide box 5 with respect to the horizontal plane being 30 - 45° is mainly to facilitate the rapid rolling of the compound fertilizer particles. On the one hand, it is convenient to ensure the conveying speed of the shunt guide box 5, and on the other hand, it is convenient to avoid the accumulation and blockage of materials inside the shunt guide box 5, reducing the accident rate.

[0027] The inclination angle of the dispersion pipe 6 with respect to the horizontal plane is set to 45 - 60°, mainly to facilitate the rapid flow of the compound fertilizer particles and their spreading on the material dispersion net 8, and the concentrated compound fertilizer particle materials are successively blocked and dispersed by the primary dispersion net 81, secondary dispersion net 82, tertiary dispersion net 83 and quaternary dispersion net 84, so as to be dispersed on the shunt guide box 5, and thus the compound fertilizer particles are evenly dispersed between the shunt partition plates 7 in the shunt guide box 5. Through the shunt guide box 5, the materials can be evenly dispersed and guided onto the fluidized bed, facilitating the rapid cooling and conveying of the compound fertilizer particles.

[0028] The interior of the fluidized bed body 1 includes a material cooling space 11 and a cold air chamber 12. The material cooling space 11 is located above the cold air chamber 12, and a ventilation gap is provided between the material cooling space 11 and the cold air chamber 12, and the ventilation gap covers the bottom end of the material cooling space 11. The material cooling space 11 is mainly used to temporarily store the materials to be cooled, and the cold air chamber 12 is mainly used to buffer the cold air for cooling, so as to facilitate the cold air to fill the cold air chamber 12, and thus the cold air evenly blows up and suspends the compound fertilizer materials through the ventilation gap, facilitating the rapid cooling and transportation of the compound fertilizer materials and reducing the transportation burden of the fluidized bed body 1.

[0029] Specifically, the working principle of the present application is as follows: After the compound fertilizer granular material flows into the inside of the dispersion pipe 6, the concentrated compound fertilizer granules are directly dispersed into two parts from the middle by the dispersion rods in the primary dispersion net 81. Subsequently, the two parts of the compound fertilizer granules are aligned and scattered onto the dispersion rods on the secondary dispersion net 82, and are dispersed by the dispersion rods on the secondary dispersion net 82, then scattered onto the dispersion rods on the tertiary dispersion net 83, and are dispersed by the dispersion rods on the tertiary dispersion net 83, then scattered onto the dispersion rods on the quaternary dispersion net 84, and are finally evenly flowed to the shunt and diversion box 5. Inside the shunt and diversion box 5, since the material particles flow into the shunt and diversion box 5 evenly, it can conveniently flow into the space between the shunt and diversion boxes 5, thus facilitating the uniform dispersion of the material in the material cooling space 11 of the fluidized bed body 1. Subsequently, the cold air in the cold air chamber 12 is evenly blown into the material cooling space 11 through the air permeable gaps, thus facilitating the uniform blowing up and suspension of the material dispersed in the material cooling space 11, which is convenient for rapid cooling and transportation.

[0030] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A fluidized bed cooling device for facilitating the rapid dispersion and cooling of compound fertilizer granules, characterized in that: It includes an inclined fluidized bed body (1), a cooling air duct (2) is connected to the bottom end of the lower side of the fluidized bed body (1), and an air extraction duct (3) is connected to the top end of the upper side. A material conveying pipe (4) is hermetically connected to the lower end of the fluidized bed body (1), and the higher end is connected to a shunt and diversion box (5). The shunt and diversion box (5) is inclined, and a dispersing pipe (6) arranged obliquely is connected to the upper end of the shunt and diversion box (5); A material dispersion net (8) is arranged inside the dispersing pipe (6). The material dispersion net (8) successively includes a primary dispersion net (81), a secondary dispersion net (82), a tertiary dispersion net (83) and a quaternary dispersion net (84) from top to bottom. The primary dispersion net (81) is a dispersion rod inserted into the upper and lower walls of the dispersing pipe (6), the secondary dispersion net (82) is two dispersion rods inserted into the upper and lower walls of the dispersing pipe (6), the tertiary dispersion net (83) is at least 4 dispersion rods inserted into the upper and lower walls of the dispersing pipe (6), and the quaternary dispersion net (84) is at least 8 dispersion rods inserted into the upper and lower walls of the dispersing pipe (6); The inclination angle of the fluidized bed body (1) with the horizontal plane is 5 - 10°, the inclination angle of the shunt and diversion box (5) with the horizontal plane is 30 - 45°, and the inclination angle of the dispersing pipe (6) with the horizontal plane is 45 - 60°.

2. The fluidized bed cooling device for facilitating rapid dispersion and cooling of compound fertilizer particles according to claim 1, wherein: A number of shunt partitions (7) are arranged inside the shunt and diversion box (5).

3. The fluidized bed cooling device for facilitating the rapid dispersion and cooling of compound fertilizer particles according to claim 2, wherein: The shunt and diversion box (5) has an isosceles trapezoid structure and a rectangular frame structure in cross section. The two side edges of the shunt partition (7) are connected to the upper inner wall and the lower inner wall of the shunt and diversion box (5), and a number of the shunt partitions (7) are arranged at equal distances inside the shunt and diversion box (5).

4. The fluidized bed cooling device for facilitating the rapid dispersion and cooling of compound fertilizer particles according to claim 1, characterized in that: The inside of the fluidized bed body (1) includes a material cooling space (11) and a cold air chamber (12). The material cooling space (11) is located above the cold air chamber (12), and a ventilation gap is arranged between the material cooling space (11) and the cold air chamber (12) for communication. The ventilation gap covers the bottom end of the material cooling space (11).

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