Humic acid-based compound fertilizer particle reinforced drying machine
By using the flipping and adjusting components in combination with heating and waste heat recovery components, the problem of accumulation and sticking of humic acid-based compound fertilizer granules during drying is solved, achieving uniform drying and efficient production.
Patent Information
- Application Number
- CN202520428230.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Humic acid-based compound fertilizer granules are prone to accumulating and sticking together during the drying process, resulting in uneven drying and affecting production efficiency and product quality.
The combination of a flipping component and an adjustment component ensures uniform heating of the particles, while the heating component and waste heat recovery component improve temperature uniformity and drying efficiency, and the waste heat recovery component improves energy utilization efficiency.
This method achieves uniform drying of humic acid-based compound fertilizer granules, improves production efficiency, reduces energy consumption, and ensures stable product quality.
Smart Images

Figure CN223795678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural production equipment technology, and in particular to a humic acid-based compound fertilizer granule enhanced dryer. Background Technology
[0002] Humic acid-based compound fertilizer granules are a type of compound fertilizer formed by mixing humic acid with various nutrients (such as nitrogen, phosphorus, and potassium). Its main characteristics are that it can improve soil quality, increase plant absorption efficiency, and promote crop growth. Humic acid-based compound fertilizer granules have a wide range of applications in agricultural production, especially suitable for improving soil fertility and crop growth environment. Due to its excellent slow-release properties and good soil improvement effect, these granules have become one of the indispensable fertilizers in modern agriculture.
[0003] In existing technologies, the drying process of humic acid-based compound fertilizer granules mainly involves heating the granules with a hot air system in a dryer to remove moisture. Some drying equipment promotes moisture evaporation by continuously circulating hot air in contact with the granules, while mechanical devices facilitate the flow and distribution of the granules, thereby improving the drying effect. This process typically relies on precise temperature and airflow control to ensure the removal of moisture from the granules and meet drying requirements.
[0004] However, in existing technologies, the drying of humic acid-based compound fertilizer granules often faces problems such as granule accumulation, adhesion, and uneven drying. Due to the uneven tumbling and movement of granules in the drying tank, some granules will adhere or accumulate together due to incomplete moisture removal, thus affecting the drying effect. This uneven drying not only reduces production efficiency but also leads to unstable product quality and increases the workload of subsequent screening and processing. Therefore, an enhanced dryer for humic acid-based compound fertilizer granules is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a humic acid-based compound fertilizer granule enhanced dryer, which aims to improve the problem in the prior art where some granules stick together or accumulate due to incomplete moisture removal, thus affecting the drying effect.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A humic acid-based compound fertilizer granule enhanced dryer includes a drying chamber, inside which are fixed multiple placement racks evenly distributed in a straight line. A receiving box slides at the bottom of the placement racks, and a drying tank is set on the top of the placement racks. A heating component is provided on the outer periphery of the drying tank, and a tilting component is provided inside the drying tank. A feed pipe is installed on the top of the drying tank, and a discharge pipe is installed on the bottom of the drying tank. A control panel is set on the front side of the drying chamber.
[0008] The flipping assembly includes a motor, which is fixed to the left side of the drying tank. A rotating shaft is fixed to the output end of the motor, and multiple flipping blades that are evenly distributed in a straight line are fixed to the outer periphery of the rotating shaft. Adjustment assemblies are provided on both the front and rear sides of the drying tank.
[0009] As a further description of the above technical solution:
[0010] The heating assembly includes a heat insulation sleeve fitted around the outer periphery of the drying tank. A spiral pipe is provided inside the heat insulation sleeve. An exhaust pipe and an intake pipe are respectively installed at the left and right ends of the spiral pipe. A circulation pipe is installed at the end of the exhaust pipe away from the spiral pipe, and a gas delivery pipe is installed at the end of the intake pipe away from the spiral pipe. An axial flow fan is fixed at one end of both the gas delivery pipe and the circulation pipe. A waste heat recovery assembly is provided on the top side of the middle part of the drying tank.
[0011] As a further description of the above technical solution:
[0012] The adjustment assembly includes a fixing plate, which is fixed to the outer periphery of the drying tank. A swing frame is rotatably mounted on the side of the fixing plate away from the drying tank. Hydraulic rods are movably connected to the left and right sides of the bottom of the drying tank.
[0013] As a further description of the above technical solution:
[0014] The waste heat recovery assembly includes a collection pipe, which is fixed to the top side of the middle part of the drying tank. A recovery pipe is fixed to the end of the collection pipe away from the drying tank, and a plate heat exchanger is installed at the end of the recovery pipe away from the collection pipe.
[0015] As a further description of the above technical solution:
[0016] The ends of the two hydraulic rods furthest from the drying tank are respectively fixed to the top of the left and right sides of the placement frame;
[0017] As a further description of the above technical solution:
[0018] The spiral pipe is sleeved around the outer periphery of the drying tank and abuts against the drying tank, and the axial flow fan is fixed to the top of the drying box;
[0019] As a further description of the above technical solution:
[0020] The outer periphery of the collection pipe extends through the outer periphery of the heat insulation sleeve, and the recovery pipe is located on the rear side of the drying box;
[0021] As a further description of the above technical solution:
[0022] The bottom of the swing frame is fixed to the top of the middle side of the placement frame.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, by using the flipping component and the adjusting component together, the flipping component continuously flips the particles in the drying tank to ensure that the particles are heated evenly. At the same time, the adjusting component allows the drying tank to tilt appropriately, further promoting the movement and tumbling of the particles. The particles in the drying tank can move fully, avoiding the accumulation of particles during the drying process, which would affect the drying effect and improve the uniformity and efficiency of drying.
[0025] 2. In this utility model, by using the heating component and the waste heat recovery component together, the heating component evenly transfers hot air to the drying tank, ensuring the uniformity of the temperature inside the drying tank, and the waste heat recovery component collects the humid hot air and guides it through the plate heat exchanger for heat exchange, thereby improving the drying efficiency and reducing energy consumption. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of the humic acid-based compound fertilizer granule enhanced dryer proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the drying chamber of the humic acid-based compound fertilizer granule enhanced dryer proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the plate heat exchanger of the humic acid-based compound fertilizer granule enhanced dryer proposed in this utility model.
[0029] Figure 4 This is a schematic diagram of the spiral pipe structure of the humic acid-based compound fertilizer granule enhanced dryer proposed in this utility model.
[0030] Figure 5 This is a schematic diagram of the rotating blades of the humic acid-based compound fertilizer granule enhanced dryer proposed in this utility model.
[0031] Legend:
[0032] 1. Drying oven; 2. Drying tank; 3. Control panel; 4. Heating assembly; 401. Gas supply pipe; 402. Air inlet pipe; 403. Spiral pipe; 404. Exhaust pipe; 405. Circulation pipe; 406. Axial flow fan; 407. Heat insulation jacket; 5. Waste heat recovery assembly; 501. Plate heat exchanger; 502. Recovery pipe; 503. Collection pipe; 6. Tilting assembly; 601. Motor 1; 602. Rotating shaft; 603. Tilting blades; 7. Adjustment assembly; 701. Swing frame; 702. Fixing plate; 703. Hydraulic rod; 8. Placement rack; 9. Receiving box; 10. Feed pipe; 11. Discharge pipe. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 An embodiment of this utility model provides a humic acid-based compound fertilizer granule enhanced dryer, including a drying box 1. Multiple placement racks 8 are fixed inside the drying box 1 in a straight line and evenly distributed. A receiving box 9 slides at the bottom of the placement racks 8 to collect the dried compound fertilizer granules. A drying tank 2 is provided on the top of the placement racks 8, allowing the drying tank 2 to be conveniently placed inside the drying box 1. The drying tank 2 is used to hold the humic acid-based compound fertilizer granules for enhanced drying. A heating component 4 is provided on the outer periphery of the drying tank 2, and a tilting component 6 is provided inside the drying tank 2. A feed pipe 10 is installed on the top of the drying tank 2 to transport the compound fertilizer granules into the drying tank 2. A discharge pipe 11 is installed at the bottom of the drying tank 2, which works in conjunction with a valve body to discharge the dried granules from the drying tank 2. A control panel 3 is provided on the front side of the drying box 1.
[0035] The flipping assembly 6 includes a motor 601, which is fixed on the left side of the drying tank 2. A rotating shaft 602 is fixed to the output end of the motor 601. The motor 601 is a Y-series three-phase asynchronous motor, and its output end is connected to the rotating shaft 602. When the motor 601 rotates, it can drive the rotating shaft 602 to rotate. Multiple flipping blades 603 that are evenly distributed in a straight line are fixed on the outer circumference of the rotating shaft 602. Adjustment assemblies 7 are provided on both the front and rear sides of the drying tank 2. The flipping blades 603 on the outer circumference of the rotating shaft 602 are distributed in a straight line. Each flipping blade 603 is fixed at the same angle on the outer circumference of the rotating shaft 602, so that when the rotating shaft 602 rotates, the flipping blades 603 can flip the particles and prevent the particles from accumulating and sticking together.
[0036] Reference Figure 4 The heating component 4 includes a heat insulation sleeve 407, which is fitted around the outer periphery of the drying tank 2. A spiral pipe 403 is installed inside the heat insulation sleeve 407. The heat insulation sleeve 407 prevents rapid temperature loss from the drying tank 2. The spiral pipe 403 fits against the outer periphery of the drying tank 2. When hot air flows within the spiral pipe 403, it ensures uniform heating of the drying tank 2. An exhaust pipe 404 and an intake pipe 402 are installed at the left and right ends of the spiral pipe 403, respectively. A circulation pipe 405 is installed at the end of the exhaust pipe 404 furthest from the spiral pipe 403, and a gas delivery pipe is installed at the end of the intake pipe 402 furthest from the spiral pipe 403. 401. The air supply pipe 401 and the air intake pipe 402 are used to transport hot air to the spiral pipe 403. The end of the air supply pipe 401 away from the air intake pipe 402 is connected to the hot air device. The hot air device adopts mature existing technology, which will not be described in detail here. The exhaust pipe 404 and the circulation pipe 405 are used to discharge the hot air in the spiral pipe 403, thereby ensuring the flow of hot air. An axial flow fan 406 is fixed at one end of the air supply pipe 401 and the circulation pipe 405. The axial flow fan 406 is fixed at the top of the drying chamber 1. The two axial flow fans 406 are connected to the air supply pipe 401 and the circulation pipe 405 respectively, and are used to transport hot air and extract hot air. A waste heat recovery component 5 is provided on the top side of the middle part of the drying tank 2.
[0037] Reference Figure 1 - Figure 3The adjusting assembly 7 includes a fixed plate 702, which is fixed to the outer periphery of the drying tank 2. A swing frame 701 is rotatably mounted on the side of the fixed plate 702 away from the drying tank 2. The bottom of the swing frame 701 is fixed to the top of the middle side of the placement rack 8. The fixed plate 702 is connected to the drying tank 2, and the swing frame 701 is rotatably connected to the fixed plate 702. When the drying tank 2 produces a certain angular displacement, the fixed plate 702 will rotate around the swing frame 701. Hydraulic rods 703 are movably connected to the left and right sides of the bottom of the drying tank 2. The ends of the two hydraulic rods 703 away from the drying tank 2 are respectively fixed to the top of the left and right sides of the placement rack 8. The hydraulic rods 703 are used to adjust the angle of the drying tank 2 so that the drying tank 2 can produce a slight angular displacement.
[0038] Reference Figure 1 - Figure 3 The waste heat recovery assembly 5 includes a collection pipe 503, which is fixed to the top side of the middle part of the drying tank 2. The outer periphery of the collection pipe 503 penetrates the outer periphery of the insulation sleeve 407. The collection pipe 503 is used to collect the humid and hot air generated by the evaporation of moisture from the particles during the drying process in the drying tank 2. A recovery pipe 502 is fixed to the end of the collection pipe 503 away from the drying tank 2. The recovery pipe 502 is located at the rear side of the drying box 1. A plate heat exchanger 501 is installed at the end of the recovery pipe 502 away from the collection pipe 503. The recovery pipe 502 is used to connect the plate heat exchanger 501 and the collection pipe 503. The humid and hot air enters the plate heat exchanger 501 through the collection pipe 503 and the recovery pipe 502 to exchange heat, thereby achieving waste heat recovery and improving energy utilization efficiency.
[0039] Working principle: During use, compound fertilizer granules are conveyed into the drying tank 2 through the feed pipe 10. Then, the control panel 3 controls each part to start working. First, two axial flow fans 406 are started, so that hot air enters the spiral pipe 403 through the air delivery pipe 401 and the air inlet pipe 402. The hot air entering the spiral pipe 403 flows along the spiral path of the spiral pipe 403, thereby transferring the heat of the hot air to the drying tank 2. Then, the hot air is extracted by another axial flow fan 406. The hot air in the spiral pipe 403 will flow out through the exhaust pipe 404 and the circulation pipe 405, so that the hot air is fully circulated, ensuring the uniformity of drying and improving the drying efficiency.
[0040] At this time, start motor 601. Motor 601 controls the rotation of rotating shaft 602. When rotating shaft 602 rotates, multiple flipping blades 603 on the outer periphery of rotating shaft 602 will continuously flip the compound fertilizer granules inside drying tank 2. At the same time, hydraulic rod 703 can be activated to make drying tank 2 rotate at a certain angle, so that the compound fertilizer granules inside drying tank 2 will move inside drying tank 2, further avoiding the accumulation and adhesion of compound fertilizer granules during the drying process.
[0041] During the drying process, the moisture in the compound fertilizer granules is gradually evaporated, generating hot and humid evaporating air. This evaporating air then enters the recovery pipe 502 through the collection pipe 503 and finally enters the plate heat exchanger 501 for heat exchange, thereby improving energy efficiency. After the drying process is completed, the drying tank 2 is tilted, and the control valve 11 is activated to allow the dried compound fertilizer granules to fall into the collection hopper 9. After removing the collection hopper 9 from the drying chamber 1, all components can be cleaned to ensure stable operation during the next drying process.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A humic acid-based compound fertilizer granule enhanced dryer, comprising a drying chamber (1), characterized in that: The drying chamber (1) has multiple placement racks (8) evenly distributed in a straight line fixed inside. A receiving box (9) slides at the bottom of the placement rack (8). A drying tank (2) is set on the top of the placement rack (8). A heating component (4) is provided on the outer periphery of the drying tank (2). A flipping component (6) is provided inside the drying tank (2). A feed pipe (10) is installed on the top of the drying tank (2). A discharge pipe (11) is installed on the bottom of the drying tank (2). A control panel (3) is set on the front side of the drying chamber (1). The flipping assembly (6) includes a motor (601), which is fixed on the left side of the drying tank (2). A rotating shaft (602) is fixed at the output end of the motor (601). Multiple flipping blades (603) that are evenly distributed in a straight line are fixed on the outer periphery of the rotating shaft (602). Adjustment assemblies (7) are provided on both the front and rear sides of the drying tank (2).
2. The humic acid-based compound fertilizer granule enhanced dryer according to claim 1, characterized in that: The heating assembly (4) includes a heat insulation sleeve (407), which is fitted around the outer periphery of the drying tank (2). A spiral pipe (403) is provided inside the heat insulation sleeve (407). An exhaust pipe (404) and an intake pipe (402) are respectively installed at the left and right ends of the spiral pipe (403). A circulation pipe (405) is installed at the end of the exhaust pipe (404) away from the spiral pipe (403). An air supply pipe (401) is installed at the end of the intake pipe (402) away from the spiral pipe (403). An axial flow fan (406) is fixed at one end of both the air supply pipe (401) and the circulation pipe (405). A waste heat recovery assembly (5) is provided on the top side of the middle part of the drying tank (2).
3. The humic acid-based compound fertilizer granule enhanced dryer according to claim 1, characterized in that: The adjustment assembly (7) includes a fixing plate (702) which is fixed to the outer periphery of the drying tank (2). A swing frame (701) is rotatably mounted on the side of the fixing plate (702) away from the drying tank (2). Hydraulic rods (703) are movably connected to the left and right sides of the bottom of the drying tank (2).
4. The humic acid-based compound fertilizer granule enhanced dryer according to claim 2, characterized in that: The waste heat recovery assembly (5) includes a collection pipe (503), which is fixed to the top side of the middle part of the drying tank (2). A recovery pipe (502) is fixed to one end of the collection pipe (503) away from the drying tank (2), and a plate heat exchanger (501) is installed at one end of the recovery pipe (502) away from the collection pipe (503).
5. The humic acid-based compound fertilizer granule enhanced dryer according to claim 3, characterized in that: The ends of the two hydraulic rods (703) away from the drying tank (2) are respectively fixed to the top of the left and right sides of the placement rack (8).
6. The humic acid-based compound fertilizer granule enhanced dryer according to claim 2, characterized in that: The spiral pipe (403) is sleeved on the outer periphery of the drying tank (2) and abuts against the drying tank (2), and the axial flow fan (406) is fixed on the top of the drying box (1).
7. The humic acid-based compound fertilizer granule enhanced dryer according to claim 4, characterized in that: The outer periphery of the collection pipe (503) extends through the outer periphery of the heat insulation sleeve (407), and the recovery pipe (502) is located on the rear side of the drying box (1).
8. The humic acid-based compound fertilizer granule enhanced dryer according to claim 3, characterized in that: The bottom of the swing frame (701) is fixed to the top of the middle side of the placement frame (8).