A sulphur-based fertilizer special for wheat, a processing method thereof and an integrated fertilizer forming system

Abstract

This invention discloses a sulfur-based fertilizer for wheat, its processing method, and an integrated fertilizer molding system. The integrated fertilizer molding system includes a horizontally fixed cylinder with a feed hopper and a discharge hopper connected to its interior at both ends. A rotating mounting shaft is mounted inside the cylinder, with multiple spiral segments arranged from one end of the cylinder to the other. A first shell, a second shell, and a third shell are fixed outside the cylinder, arranged from the end with the feed hopper to the other. The cylinder has multiple first through holes communicating with the first shell and multiple second through holes communicating with the second and third shells. The first through holes are located at the upper part of the cylinder, and the second through holes are distributed around the outer periphery of the cylinder. This invention solves the problem of the large footprint of existing production lines.

Description

Technical Field

[0001] This invention relates to the field of fertilizer processing equipment technology, and in particular to a special sulfur-based fertilizer for wheat, its processing method, and an integrated fertilizer forming system. Background Technology

[0002] Fertilizer processing involves multiple steps, such as crushing and mixing raw materials, granulating them in a granulator, and then drying and cooling them. Each step typically requires separate equipment, leading to a large number of devices, a large footprint, and high equipment investment in fertilizer production lines. While some existing technologies integrate multiple steps, these are mostly two-step processes, such as combining mixing and crushing, with subsequent granulation, drying, and cooling performed separately. This still results in a large overall production line footprint. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an integrated fertilizer forming system, which solves the problem of the large footprint of the overall production line in the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An integrated fertilizer forming system includes a horizontally fixed cylinder. A feed hopper and a discharge hopper, communicating with the cylinder's interior, are fixed at both ends of the cylinder. An installation shaft rotates within the cylinder, and multiple spiral segments arranged from one end of the cylinder to the other are fixed on the installation shaft. Each spiral segment includes multiple spiral plates located on the same side of the installation shaft, with adjacent spiral segments arranged on opposite sides of the installation shaft and staggered. The minimum distance between a spiral segment and the lower inner wall of the cylinder is less than the minimum distance between a spiral segment and the upper inner wall of the cylinder. A first shell, a second shell, and a third shell are fixed outside the cylinder, arranged from the end with the feed hopper to the other. The first shell, second shell, and third shell are respectively provided with a first inlet, a second inlet, and a third inlet. The cylinder is provided with multiple first through holes communicating with the first shell and multiple second through holes communicating with the second and third shells. The first through holes are located at the upper part of the cylinder, and the second through holes are distributed around the outer periphery of the cylinder. The feed hopper in the solution is used to introduce crushed material. Then, with the rotation of the mounting shaft, the material can move to the other end with the assistance of the spiral section. During the movement, granulation, drying and cooling are achieved in sequence. Finally, the material is discharged from the discharge hopper. Multiple steps are completed in the same equipment, which can further reduce the space occupied by the overall production line and solve the problem of large space occupation of the overall production line in the existing technology.

[0006] Furthermore, one end of the mounting shaft extends rotatably out of the cylinder.

[0007] Furthermore, a first inlet pipe and a second inlet pipe, which are connected to the inside of the cylinder, are fixed at one end of the cylinder near the feed hopper.

[0008] Furthermore, both the first inlet tube and the second inlet tube have portions located inside the cylinder and are both located above the spiral section.

[0009] Furthermore, the second and third shells surround the cylinder body, and the second and third inlets are respectively fixed to the bottom of the cylinder body.

[0010] Furthermore, the bottom of the second and third housings is provided with a first outlet.

[0011] Furthermore, the top of the second and third housings are respectively provided with a second outlet and a third outlet.

[0012] It also provides a processing method for a wheat-specific sulfur-based fertilizer processed using the above system, and a wheat-specific sulfur-based fertilizer obtained by the processing method.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The material can be granulated, dried and cooled sequentially inside the cylinder. Multiple steps are completed in the same equipment, which can further reduce the space occupied by the overall production line and solve the problem of large space occupied by the overall production line in the existing technology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this embodiment.

[0016] The reference numerals in the accompanying drawings include:

[0017] 1. Cylinder body; 2. Feed hopper; 3. Discharge hopper; 4. Mounting shaft; 5. Spiral section; 6. First inlet pipe; 7. Second inlet pipe; 8. First shell; 9. Second shell; 10. Third shell; 11. First inlet port; 12. Second inlet port; 13. Third inlet port; 14. First through hole; 15. Second through hole; 16. First outlet port; 17. Second outlet port; 18. Third outlet port. Detailed Implementation

[0018] The present invention will be further described in detail below through specific embodiments:

[0019] Example 1

[0020] like Figure 1As shown, this solution provides an integrated fertilizer forming system, which includes a horizontally fixed cylinder 1. At both ends of the cylinder 1 are a feed hopper 2 and a discharge hopper 3, respectively, communicating with the interior of the cylinder. The feed hopper 2 opens upwards, and the discharge hopper 3 opens downwards. Solid material, after being crushed and mixed in a previous step, is introduced from the feed hopper 2 and then discharged from the discharge hopper 3 at the other end after passing through the cylinder 1. Furthermore, a mounting shaft 4 is rotatably mounted inside the cylinder 1. One end of the mounting shaft 4 extends rotatably outside the cylinder 1 (specifically, it can extend through the feed hopper 2 to the outside) and is connected to a drive motor that drives its rotation. Multiple spiral segments 5 are fixed on the mounting shaft 4, arranged from one end of the cylinder 1 to the other. Each spiral segment 5 includes multiple spiral plates located on the same side of the mounting shaft 4, with adjacent spiral segments 5 arranged on opposite sides of the mounting shaft 4 and staggered. During the rotation of the mounting shaft 4, the spiral segments 5 periodically contact the material and push it towards the other end. Furthermore, the cylinder 1 is also equipped with a first inlet pipe 6 for introducing liquid materials and a second inlet pipe 7 for introducing gaseous materials. This allows the material to be tumbled and granulated during movement at the front of the cylinder 1. In a specific design, the minimum distance between the spiral section 5 and the lower inner wall of the cylinder 1 is smaller than the minimum distance between the spiral section 5 and the upper inner wall of the cylinder 1. That is, when the spiral section 5 is below, the distance between it and the inner wall of the cylinder 1 is small, which can push and tumble the material. When it is above, the distance between it and the upper inner wall of the cylinder 1 is large. More specifically, the first inlet pipe 6 and the second inlet pipe 7 are both located above the spiral section 5, which also provides them with space. The first inlet pipe 6 and the second inlet pipe 7 (each of which has a part located inside the cylinder 1 and extending laterally) are respectively equipped with nozzles that open downwards, so that the introduced liquid and gaseous materials are sprayed downwards and come into fuller contact with the tumbling material below.Furthermore, the cylinder 1 is also fixed with a first shell 8, a second shell 9, and a third shell 10 (the three are separated from each other) arranged from one end where the feed hopper 2 is located to the other end. The first shell 8, the second shell 9, and the third shell 10 are respectively provided with a first inlet 11, a second inlet 12, and a third inlet 13. The first inlet 11 of the first shell 8 is located at the top and can be used to introduce hot air to heat the material in the granulation process. More specifically, the cylinder 1 is provided with a plurality of first through holes 14 communicating with the inside of the first shell 8, and the introduced hot air enters through the first through holes. 14 enters the cylinder 1. Furthermore, all the first through holes 14 are located in the upper part of the cylinder 1 to prevent material from clogging them. At the same time, the first shell 8 surrounds the upper and sides, so that hot air can also heat the upper part and side walls of the cylinder 1, while the bottom is not in the heating range. This creates a temperature difference between the bottom, the upper part, and the sides, so that heat from outside the cylinder 1 can be more easily transferred into the cylinder 1. The cylinder 1 is also provided with multiple second through holes 15 communicating with the second shell 9. The second inlet 12 on the second shell 9 is located at the bottom, specifically at the bottom of the cylinder 1. The second through-hole 15 is arranged around the outer periphery of the cylinder 1. Hot air can be introduced through the second inlet 12. The hot air introduced here is used to dry the granulated material. At the same time, a first outlet 16 is also provided at the bottom of the second shell 9. During operation, small particles will enter the cylinder 1 through the second through-hole 15. These particles will fall to the bottom of the second shell 9 and can be discharged through the first outlet 16. Similarly, multiple second through-holes 15 are also provided on the cylinder 1, connecting it to the third shell 10. The material will also fall to the bottom of the third shell 10. The bottom of the third housing 10 is also provided with a first outlet 16 and a third inlet 13, which are used to introduce cooling air. The tops of the second housing 9 and the third housing 10 are respectively provided with a second outlet 17 and a third outlet 18. The second outlet 17 can discharge some of the residual air introduced through the first inlet 11 and some of the residual hot air introduced through the second inlet 12. The third outlet 18 discharges the residual air from the previous outlet and the residual cooling air introduced. In a further embodiment, an induced draft fan can be connected to the second outlet 17 and the third outlet 18.

[0021] Example 2

[0022] A sulfur-based fertilizer for wheat is provided, which is processed using the system described in Example 1 above. The processing method includes:

[0023] Weigh the raw materials by weight: 80-90 parts urea, 430-440 parts 55% monoammonium phosphate, 70-80 parts potassium chloride, 150-160 parts ammonium chloride, 190-200 parts ammonium sulfate, 0.1 parts fucoidan (including mannuronic acid and guluronic acid in a 1:1 mass ratio), and 1 part manganese sulfate monohydrate. After crushing and mixing the solid materials, feed them into the hopper. Then, introduce gaseous ammonia (3.5-4% of the fertilizer weight) through the first inlet pipe and water (30-50 kg / m³) through the second inlet pipe. The fertilizer is mixed with 98% sulfuric acid (added at 1-2% of the fertilizer). Hot air is introduced through the first inlet, raising the temperature of the corresponding cylindrical part inside the first shell to 70-90℃. Hot air is introduced through the second inlet, raising the temperature of the corresponding cylindrical part inside the second shell to 120-150℃. Cold air is introduced through the third inlet, raising the temperature of the corresponding cylindrical part inside the third shell to 70-75℃. During the process, the drive motor runs, causing the mounting shaft to rotate continuously at a low speed (e.g., 30r / min). Finally, the processed fertilizer is discharged from the discharge hopper.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An integrated fertilizer forming system, characterized in that, The device includes a horizontally fixed cylinder with a feed hopper and a discharge hopper fixed at both ends, communicating with the cylinder's interior. A rotating mounting shaft is also mounted on the cylinder, with multiple spiral segments arranged from one end of the cylinder to the other. Each spiral segment includes multiple spiral plates located on the same side of the mounting shaft, with adjacent spiral segments arranged on opposite sides of the shaft and staggered. The minimum distance between a spiral segment and the lower inner wall of the cylinder is less than the minimum distance between a spiral segment and the upper inner wall of the cylinder. A first shell, a second shell, and a third shell are also fixed outside the cylinder, arranged from the end with the feed hopper to the other. The first, second, and third shells are respectively provided with a first inlet, a second inlet, and a third inlet. The cylinder is provided with multiple first through holes communicating with the first shell and multiple second through holes communicating with the second and third shells. The first through holes are located at the upper part of the cylinder, and the second through holes are distributed around the outer circumference of the cylinder.

2. The integrated fertilizer forming system as described in claim 1, characterized in that, One end of the mounting shaft rotates and extends outside the cylinder.

3. The integrated fertilizer forming system as described in claim 1, characterized in that, The cylinder body is also fixed with a first inlet pipe and a second inlet pipe that communicate with the inside of the feed hopper at one end.

4. The integrated fertilizer forming system as described in claim 3, characterized in that, Both the first and second inlet tubes have portions located inside the cylinder and are situated above the spiral section.

5. The integrated fertilizer forming system as described in claim 1, characterized in that, The second and third shells surround the cylinder, and the second and third inlets are fixed to the bottom of the cylinder, respectively.

6. The integrated fertilizer forming system as described in claim 5, characterized in that, The bottom of the second and third housings is also provided with a first outlet.

7. The integrated fertilizer forming system as described in claim 6, characterized in that, The top of the second and third housings are respectively provided with a second outlet and a third outlet.

8. A processing method for a sulfur-based fertilizer specifically for wheat, characterized in that, The fertilizer is processed using the integrated fertilizer molding system as described in any one of claims 1-7.

9. A sulfur-based fertilizer specifically for wheat, characterized in that, Obtained by the processing method described in claim 8.

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