Multi-stage drying chemical equipment for agricultural fertilizer
By designing a multi-stage drying chemical equipment, efficient drying of fertilizers and recycling of waste heat are achieved, solving the problems of waste heat and high energy consumption in existing technologies and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-04-03
AI Technical Summary
The current agricultural fertilizer drying process suffers from waste of residual heat and high energy consumption.
The equipment employs a multi-stage drying process. Fertilizer granules are introduced through the feed inlet, and hot air is introduced through the air inlet pipe to dry the fertilizer in the lower drying drum. The hot air is then reused through the pipe to enter the upper drying drum for pre-drying. The gas is discharged through the exhaust pipe and cooled in the cooling box, thus achieving the recycling of hot air.
It improves fertilizer drying efficiency, increases waste heat utilization, reduces energy consumption during the drying process, and lowers production costs.
Smart Images
Figure CN224080544U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying equipment technology, and more specifically, to a multi-stage drying chemical equipment for agricultural fertilizers. Background Technology
[0002] Agricultural fertilizers, also known as chemical fertilizers, are fertilizers containing one or more nutrients required for crop growth, produced using chemical and / or physical methods. The main function of fertilizers is to provide nutrients to plants, promote growth, and increase yield and quality. Additionally, some fertilizers also regulate soil pH and control pests and diseases. These mainly include nitrogen fertilizers, phosphorus fertilizers, potassium fertilizers, compound fertilizers, and micronutrient fertilizers.
[0003] In current agricultural fertilizer drying processes, fertilizers are simply piled up and then dried using drying lamps or by blowing hot air through pipes. This process results in a significant waste of residual heat, increases production costs, and is detrimental to production operations. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a multi-stage drying chemical equipment for agricultural fertilizers. Fertilizer granules are introduced through the feed inlet, and hot air is introduced through the air inlet pipe. The hot air dries the fertilizer in the lower drying tank. The hot air enters the upper drying tank through the reuse pipe to pre-dry the fertilizer in the upper drying tank. After that, the gas is discharged through the exhaust pipe. This method achieves better drying effect for fertilizers, higher utilization rate of waste heat, and reduces energy consumption during drying, which is beneficial for production operations.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution:
[0008] A multi-stage drying chemical equipment for agricultural fertilizers includes: an upper drying tank, with a connecting pipe extending from the bottom surface of the upper drying tank, and a lower drying tank fixedly connected to the bottom end of the connecting pipe; the lower drying tank has three mounting ports on its top surface; and a heat recovery assembly, which includes: an air inlet component and three recovery components. The air inlet component includes: an external air guide pipe, multiple air inlet pipes, and a connecting pipe. The external air guide pipe is located on the top surface of the lower drying tank, and the multiple air inlet pipes are all connected to the outer wall of the external air guide pipe and extend into the interior of the lower drying tank. The connecting pipe is connected to the outer wall of the external air guide pipe. Each of the three recovery components includes: a reuse pipe, which is fixedly connected to a corresponding mounting port, and one end of the reuse pipe extends into the interior of the upper drying tank.
[0009] As a preferred embodiment of this utility model, the top surface of the upper drying barrel is provided with three air outlets, and the inner walls of the three air outlets are fixedly connected with discharge pipes, and the outer wall of the connecting pipes is equipped with an intermediate control valve.
[0010] As a preferred embodiment of this utility model, the outer walls of the three discharge pipes are all fitted with cooling boxes, and the top surface of the upper drying barrel is provided with a feed inlet.
[0011] As a preferred embodiment of this utility model, the top surface of the upper drying barrel is detachably connected to a sealing cover, and one end of each of the plurality of air inlet pipes is fixedly connected to an air inlet shielding net.
[0012] As a preferred embodiment of this utility model, the outer wall of the upper drying barrel is fitted with an outer positioning sleeve, and the outer wall of the outer positioning sleeve is fixedly connected with multiple support rods.
[0013] As a preferred embodiment of this utility model, two outer fixing sleeves are fixedly connected between the outer walls of the plurality of support rods, and the outer walls of the two outer fixing sleeves are respectively fixedly connected to the outer walls of the corresponding cooling boxes.
[0014] 3. Beneficial Effects
[0015] Compared with existing technologies, this utility model provides a multi-stage drying chemical equipment for agricultural fertilizers, which has the following beneficial effects:
[0016] This multi-stage drying equipment for agricultural fertilizers introduces fertilizer granules through the feed inlet and hot air through the air inlet pipe. The hot air dries the fertilizer in the lower drying tank and then enters the upper drying tank through the reuse pipe to pre-dry the fertilizer there. Finally, the gas is discharged through the exhaust pipe, resulting in better drying of the fertilizer, higher utilization of waste heat, reduced energy consumption during drying, and easier production operations. Attached Figure Description
[0017] Figure 1 This is a perspective view of the present utility model;
[0018] Figure 2 This is a bottom-view perspective view of the present invention;
[0019] Figure 3 This is a partial perspective view of the present invention.
[0020] Explanation of the labels in the diagram:
[0021] 1. Upper drying drum; 2. Lower drying drum; 3. External air guide pipe; 4. Air inlet pipe; 5. Connecting pipe; 6. Air inlet shielding net; 7. Reuse pipe; 8. Discharge pipe; 9. Cooling box; 10. Feed inlet; 11. Sealing cover; 12. Intermediate control valve; 13. External fixing sleeve; 14. External positioning sleeve. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] Example:
[0024] Please see Figure 1-3 A multi-stage drying chemical equipment for agricultural fertilizers includes: an upper drying tank 1, with a connecting pipe extending from the bottom surface of the upper drying tank 1, and a lower drying tank 2 fixedly connected to the bottom end of the connecting pipe; the lower drying tank 2 has three installation ports on its top surface; and a heat recovery assembly, which includes: an air inlet component and three recovery components. The air inlet component includes: an external air guide pipe 3, multiple air inlet pipes 4, and a connecting pipe 5. The external air guide pipe 3 is located on the top surface of the lower drying tank 2, and the multiple air inlet pipes 4 are all connected to the outer wall of the external air guide pipe 3 and extend into the interior of the lower drying tank 2. The connecting pipe 5 is connected to the outer wall of the external air guide pipe 3. Each of the three recovery components includes: a reuse pipe 7, which is fixedly connected to the corresponding installation port, and one end of the reuse pipe 7 extends into the interior of the upper drying tank 1.
[0025] In a specific embodiment of this utility model, pre-drying is performed in the upper drying barrel 1, and further drying is performed in the lower drying barrel 2. Fertilizer granules are introduced through the feed inlet 10, and the flow state of the connecting pipe is controlled by the intermediate control valve 12. Then, hot air is introduced through the air inlet pipe 4, which dries the fertilizer in the lower drying barrel 2. Afterward, since the lower drying barrel 2 is closed, the hot air will enter the upper drying barrel 1 through the reuse pipe 7. At this time, the output end of the reuse pipe 7 must be lower than the top surface of the fertilizer. The hot air carrying water vapor and heat will pre-dry the fertilizer in the upper drying barrel 1. Then, the gas is discharged from the discharge pipe 8. The water vapor in the gas will be cooled by the cooling box 9, forming water droplets that are discharged from the discharge pipe 8. This results in a better drying effect for the fertilizer, higher utilization of waste heat, reduced energy consumption during drying, and facilitates production operations.
[0026] Specifically, the top surface of the upper drying barrel 1 is provided with three air outlets, and the inner walls of the three air outlets are fixedly connected with discharge pipes 8, and the outer wall of the connecting pipes is equipped with an intermediate control valve 12.
[0027] In this embodiment, an exhaust pipe 8 is provided through an air outlet to exhaust gas carrying water vapor, and an intermediate control valve 12 is used to control the connection status of the connecting pipe.
[0028] Specifically, the outer walls of the three discharge pipes 8 are fitted with cooling boxes 9, and the top surface of the upper drying barrel 1 is provided with a feed inlet 10.
[0029] In this embodiment, cold water is provided in the cooling tank 9 to quickly cool the exhaust gas, thereby removing the water vapor. The feed inlet 10 is used to introduce the fertilizer raw materials to be dried.
[0030] Specifically, a sealing cover 11 is detachably connected to the top surface of the upper drying barrel 1, and an air intake shielding net 6 is fixedly connected to one end of each of the multiple air intake pipes 4.
[0031] In this embodiment, the upper drying barrel 1 is sealed with a sealing cap 11 to prevent internal hot air from leaking out.
[0032] Specifically, an outer positioning sleeve 14 is fitted on the outer wall of the upper drying barrel 1, and multiple support rods are fixedly connected to the outer wall of the outer positioning sleeve 14.
[0033] In this embodiment, a support rod is provided by an outer positioning sleeve 14, and the support rod fixes the discharge pipe 8 and the cooling box 9.
[0034] Specifically, two outer fixing sleeves 13 are fixedly connected between the outer walls of multiple support rods, and the outer walls of the two outer fixing sleeves 13 are fixedly connected to the outer walls of the corresponding cooling boxes 9 respectively.
[0035] In this embodiment, the cooling box 9 is fixed by the outer fixing sleeve 13.
[0036] Working principle: Pre-drying is performed in the upper drying tank 1, and further drying is performed in the lower drying tank 2. Fertilizer granules are introduced through the feed inlet 10, and the flow state of the connecting pipe is controlled by the intermediate control valve 12. Then, hot air is introduced through the air inlet pipe 4, which dries the fertilizer in the lower drying tank 2. After that, since the lower drying tank 2 is closed, the hot air will enter the upper drying tank 1 through the reuse pipe 7. The hot air carrying water vapor and heat will pre-dry the fertilizer in the upper drying tank 1. Then, the gas is discharged from the discharge pipe 8. The water vapor in the gas will be cooled by the cooling box 9, forming water droplets that are discharged from the discharge pipe 8. This method has a better drying effect on fertilizer, higher utilization rate of waste heat, and reduces energy consumption during drying, which is beneficial for production operations.
[0037] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A multi-stage drying chemical equipment for agricultural fertilizers, characterized in that, include: The upper drying barrel (1) has a connecting pipe extending from its bottom surface. The bottom end of the connecting pipe is fixedly connected to the lower drying barrel (2). The top surface of the lower drying barrel (2) has three installation ports. as well as The heat recovery assembly includes an air intake component and three recovery components. The air intake component includes an external air guide pipe (3), multiple air intake pipes (4), and a connecting pipe (5). The external air guide pipe (3) is disposed on the top surface of the lower drying barrel (2). The multiple air intake pipes (4) are all connected to the outer wall of the external air guide pipe (3) and extend into the interior of the lower drying barrel (2). The connecting pipe (5) is connected to the outer wall of the external air guide pipe (3). The three recovery components each include a reuse pipe (7). The reuse pipe (7) is fixedly connected to the corresponding installation port. One end of the reuse pipe (7) extends into the interior of the upper drying barrel (1).
2. The multi-stage drying equipment for agricultural fertilizers according to claim 1, characterized in that: The top surface of the upper drying barrel (1) is provided with three air outlets, and the inner walls of the three air outlets are fixedly connected with discharge pipes (8), and the outer wall of the connecting pipe is equipped with an intermediate control valve (12).
3. The multi-stage drying equipment for agricultural fertilizers according to claim 2, characterized in that: The outer walls of the three discharge pipes (8) are fitted with cooling boxes (9), and the top surface of the upper drying barrel (1) is provided with a feed inlet (10).
4. The multi-stage drying equipment for agricultural fertilizers according to claim 3, characterized in that: The top surface of the upper drying barrel (1) is detachably connected to a sealing cover (11), and one end of each of the multiple air inlet pipes (4) is fixedly connected to an air inlet shielding net (6).
5. The multi-stage drying equipment for agricultural fertilizers according to claim 4, characterized in that: The outer wall of the upper drying barrel (1) is fitted with an outer positioning sleeve (14), and the outer wall of the outer positioning sleeve (14) is fixedly connected with multiple support rods.
6. The multi-stage drying equipment for agricultural fertilizers according to claim 5, characterized in that: Two outer fixing sleeves (13) are fixedly connected between the outer walls of the multiple support rods, and the outer walls of the two outer fixing sleeves (13) are respectively fixedly connected to the outer walls of the corresponding cooling boxes (9).