A drying device for anti-caking high-stability solid water-soluble fertilizer

CN224887584UActive Publication Date: 2026-10-23SHANDONG SHIKEFENG ECOLOGICAL AGRI ENG CO LTD
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Patent Information

Application Number
CN202522494463.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-10-23
Estimated Expiration
2035-11-25

AI Technical Summary

Technical Problem

[0005]基于此,为了克服现有水溶肥料烘干装置多采用螺栓固定过滤板,拆装繁琐、清洁维护不便,同时,其常用的热风直吹方式易形成气流死角,导致受热不均,烘干效率低,而机械搅拌虽能增强热交换,却易造成颗粒破碎和粉末生成,影响水溶肥料的完整性与使用性能的问题

Benefits of technology

1、当装置进入烘干作业阶段时,热风输入至进风管道中,并通过吹风口导入烘干箱体中,同时,过滤板对热风进行过滤,阻隔杂质随气流进入烘干箱体,水溶肥颗粒在上挡板的引导下流动至过滤板的表面,停留在过滤板的上方,此时,来自吹风口的热风不断自下而上吹动水溶肥颗粒,在下挡板的导向下,热风形成自下而上的旋流气流,持续翻动水溶肥颗粒,与热风充分接触,防止热风直吹产生死角,并实现无需搅拌的均匀热风烘干,防止水溶肥颗粒破碎、产生粉末;

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Abstract

The utility model relates to a kind of drying device for anti-caking high stability solid water-soluble fertilizer, belong to water-soluble fertilizer processing technical field.The device includes drying box, feed hopper and connecting ring;The side surface of the drying box is fixedly connected with support foot, the support foot is symmetrically installed at the both sides of drying box, the feed hopper is fixedly connected at the top of drying box, the bottom of the drying box is provided with air inlet duct, the connecting ring is fixedly connected at the bottom of drying box, the air inlet duct is fixedly connected at the side of connecting ring away from drying box.The utility model makes hot air form cyclone airflow from bottom to top under the guidance of upper and lower baffle, water-soluble fertilizer particles continuously turn over in cyclone, carry out uniform hot air drying, the convenient disassembly and fixing of filter plate are realized by pull rod, clamping plate, force spring and push plate, so as to efficiently dry water-soluble fertilizer without stirring and facilitate cleaning and maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of water-soluble fertilizer processing technology, and in particular to a drying device for anti-caking, highly stable solid water-soluble fertilizers. Background Technology

[0002] Anti-caking, highly stable solid water-soluble fertilizers are a type of fertilizer widely used in agricultural production. They have uniform granules, dissolve rapidly, and can meet the balanced needs of crops for various nutrients. During the production, transportation, and storage of this type of fertilizer, it is necessary to maintain the stability and dryness of the granules to ensure the fluidity and solubility when applied. In order to dry the water-soluble fertilizer and maintain its physical properties, specially designed drying equipment is usually required to ensure the quality and effectiveness of the fertilizer.

[0003] Existing drying devices for water-soluble fertilizers mostly use bolts to fix the filter plates, which makes disassembly and assembly cumbersome, time-consuming, and labor-intensive, and makes cleaning and maintenance difficult. In addition, existing drying devices usually use simple direct hot air blowing or mechanical stirring. Although direct hot air blowing can transfer heat to the surface of the material, it is easy to create dead corners, causing some water-soluble fertilizer particles to be heated unevenly, which limits the drying efficiency and uniformity. Although mechanical stirring can enhance the contact between the material and the hot air, it is easy to cause mechanical damage to the particles during the stirring process, resulting in particle breakage and powder production, thereby affecting the integrity and performance of the water-soluble fertilizer.

[0004] Therefore, this utility model proposes a drying device for anti-caking, highly stable solid water-soluble fertilizers. Utility Model Content

[0005] Based on this, in order to overcome the problems of existing water-soluble fertilizer drying devices that mostly use bolts to fix filter plates, which are cumbersome to disassemble and install, and inconvenient to clean and maintain, and whose commonly used hot air blowing method easily creates airflow dead zones, resulting in uneven heating and low drying efficiency, while mechanical stirring can enhance heat exchange, it is easy to cause particle breakage and powder generation, affecting the integrity and performance of water-soluble fertilizers.

[0006] The technical solution of this utility model is as follows: a drying device for anti-caking, high-stability solid water-soluble fertilizer, comprising a drying chamber, a feeding funnel, and a connecting ring; the side of the drying chamber is fixedly connected to a support foot, the support foot is symmetrically installed on both sides of the drying chamber, the feeding funnel is fixedly connected to the top of the drying chamber, an air inlet pipe is provided at the bottom of the drying chamber, the connecting ring is fixedly connected to the bottom of the drying chamber, and the air inlet pipe is fixedly connected to the side of the connecting ring away from the drying chamber.

[0007] Preferably, the feeding funnel is located near the front of the drying chamber, the feeding funnel has a regular tetrahedral structure, and the air inlet pipe is located near the feeding funnel.

[0008] Preferably, a discharge funnel is fixedly connected to the bottom of the drying chamber, the discharge funnel is located near the back of the drying chamber, a baffle plate is slidably connected inside the discharge funnel, and a handle is fixedly connected to the side of the baffle plate away from the discharge funnel.

[0009] Preferably, an upper baffle and a lower baffle are fixedly connected to the inner wall of the drying chamber. The upper baffle is located near the top of the drying chamber, and the lower baffle is located near the bottom of the drying chamber. An air outlet is fixedly connected inside the drying chamber. The air outlet is fixedly connected to one end of the connecting ring near the drying chamber and is located near the lower baffle.

[0010] Preferably, the top of the feed hopper is hinged with a cover plate, a handle is fixedly connected to the side of the cover plate away from the feed hopper, and a sealing ring is fixedly connected to the side of the cover plate near the feed hopper.

[0011] Preferably, a filter plate is slidably connected inside the connecting ring, a pull plate is fixedly connected to the top of the filter plate, a push plate is slidably connected inside the connecting ring, one side of the push plate is tightly attached to the bottom of the filter plate, and a push rod is fixedly connected to the other side of the push plate. The push rods are symmetrically installed at both ends of the push plate, and a storage spring is sleeved on the outside of the push rod. One end of the storage spring is fixedly connected to the end of the push plate away from the filter plate, and the other end of the storage spring is fixedly connected inside the connecting ring.

[0012] Preferably, the filter plate is slidably connected to a retaining plate, which is symmetrically installed on both sides of the filter plate and slidably connected to the inside of the connecting ring. A limiting rod is fixedly connected to the side of the retaining plate away from the filter plate. The limiting rod is symmetrically installed at both ends of the retaining plate. A pull rod is fixedly connected to the end of the limiting rod away from the retaining plate. A return spring is sleeved on the outside of the limiting rod. One end of the return spring is fixedly connected to the inside of the connecting ring, and the other end of the return spring is fixedly connected to the side of the retaining plate away from the filter plate.

[0013] The beneficial effects of this utility model are: 1. When the device enters the drying stage, hot air is input into the air inlet duct and introduced into the drying chamber through the air outlet. At the same time, the filter plate filters the hot air, blocking impurities from entering the drying chamber with the airflow. The water-soluble fertilizer granules flow to the surface of the filter plate under the guidance of the upper baffle and stay above the filter plate. At this time, the hot air from the air outlet continuously blows the water-soluble fertilizer granules from bottom to top. Under the guidance of the lower baffle, the hot air forms a swirling airflow from bottom to top, continuously turning the water-soluble fertilizer granules and ensuring full contact with the hot air. This prevents the hot air from blowing directly into dead corners and achieves uniform hot air drying without stirring, preventing the water-soluble fertilizer granules from breaking and producing powder. 2. When the filter plate needs to be removed for cleaning, pull both sets of levers simultaneously to release the retaining plate from its limiting position. At this time, the storage spring pushes the filter plate upward through the push plate and pops it out. Then, pull the pull plate to completely remove the filter plate from the connecting ring for cleaning. After cleaning, insert the filter plate into the connecting ring and gradually press the push plate. Finally, release the lever, and the reset spring pushes the retaining plate back to its original position and locks it into the filter plate, thus achieving re-limiting and fixing. This completes the filter plate disassembly and assembly operation, simplifying the disassembly and assembly steps and reducing the difficulty of cleaning and maintenance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model 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 utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 The diagram shown is a top-view three-dimensional structural schematic of the present invention; Figure 2 The diagram shown is a three-dimensional structural schematic diagram of the present invention from a bottom view. Figure 3 The diagram shown is a three-dimensional cross-sectional view of the present invention. Figure 4 The diagram shown is a three-dimensional structural schematic of the drying chamber of this utility model. Figure 5 The diagram shown is a three-dimensional structural schematic of the feed funnel of this utility model; Figure 6 The diagram shown is a three-dimensional structural schematic of the air inlet duct of this utility model. Figure 7 The diagram shown is a three-dimensional structural schematic of the connecting ring of this utility model; Figure 8 This utility model is shown. Figure 7 Enlarged 3D structural diagram of point A in the middle; Figure 9 This utility model is shown. Figure 7 Enlarged 3D structural diagram at point B.

[0016] Explanation of reference numerals in the attached drawings: 1. Drying chamber; 101. Discharge funnel; 102. Baffle plate; 103. Handle; 104. Upper baffle plate; 105. Lower baffle plate; 106. Air outlet; 2. Support leg; 3. Feed funnel; 301. Cover plate; 302. Handle; 303. Sealing ring; 4. Air inlet duct; 5. Connecting ring; 501. Filter plate; 502. Pull plate; 503. Push plate; 504. Push rod; 505. Storage spring; 506. Clamping plate; 507. Limiting rod; 508. Pull rod; 509. Return spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0020] Please see Figures 1-9 This utility model provides a technical solution: a drying device for anti-caking, high-stability solid water-soluble fertilizer, including a drying chamber 1, a feeding funnel 3, and a connecting ring 5; a support foot 2 is fixedly connected to the side of the drying chamber 1, the support foot 2 is symmetrically installed on both sides of the drying chamber 1, the feeding funnel 3 is fixedly connected to the top of the drying chamber 1, an air inlet pipe 4 is provided at the bottom of the drying chamber 1, the connecting ring 5 is fixedly connected to the bottom of the drying chamber 1, and the air inlet pipe 4 is fixedly connected to the side of the connecting ring 5 away from the drying chamber 1.

[0021] The feeding funnel 3 is located near the front of the drying chamber 1. The feeding funnel 3 has a regular tetrahedral structure. The air inlet pipe 4 is located near the feeding funnel 3. The regular tetrahedral structure of the feeding funnel 3 ensures that the water-soluble fertilizer granules can fall evenly into the drying chamber 1 by their own weight, avoiding material flow deviation or accumulation. The position of the air inlet pipe 4 allows the hot air to form an effective vortex as soon as the water-soluble fertilizer granules enter the drying chamber 1, improving the hot air utilization efficiency and achieving a uniform drying effect.

[0022] A discharge funnel 101 is fixedly connected to the bottom of the drying chamber 1. The discharge funnel 101 is located near the back of the drying chamber 1. A baffle plate 102 is slidably connected inside the discharge funnel 101. A handle 103 is fixedly connected to the side of the baffle plate 102 away from the discharge funnel 101. The arrangement of the discharge funnel 101, the baffle plate 102 and the handle 103 enables the controllable opening and closing of the discharge channel, allowing the dried water-soluble fertilizer granules to flow out smoothly under the action of gravity.

[0023] An upper baffle 104 and a lower baffle 105 are fixedly connected to the inner wall of the drying chamber 1. The upper baffle 104 is located near the top of the drying chamber 1, and the lower baffle 105 is located near the bottom of the drying chamber 1. An air outlet 106 is fixedly connected inside the drying chamber 1. The air outlet 106 is fixedly connected to one end of the connecting ring 5 near the drying chamber 1 and is located near the lower baffle 105. The hot air introduced through the air outlet 106 is guided by the upper baffle 104 and the lower baffle 105 to form an upward swirling airflow, which makes the water-soluble fertilizer granules continuously tumble in the chamber and fully contact the hot air, achieving uniform drying without mechanical stirring.

[0024] A cover plate 301 is hinged to the top of the feed hopper 3. A handle 302 is fixedly connected to the side of the cover plate 301 away from the feed hopper 3. A sealing ring 303 is fixedly connected to the side of the cover plate 301 close to the feed hopper 3. During the drying operation, the cover plate 301 is closed and sealed by the sealing ring 303, which effectively prevents hot air from escaping or heat loss.

[0025] A filter plate 501 is slidably connected inside the connecting ring 5. A pull plate 502 is fixedly connected to the top of the filter plate 501. A push plate 503 is slidably connected inside the connecting ring 5. One side of the push plate 503 is tightly attached to the bottom of the filter plate 501. A push rod 504 is fixedly connected to the other side of the push plate 503. The push rod 504 is symmetrically installed at both ends of the push plate 503. A storage spring 505 is sleeved on the outside of the push rod 504. One end of the storage spring 505 is fixedly connected to the end of the push plate 503 away from the filter plate 501. The other end of the storage spring 505 is fixedly connected inside the connecting ring 5. The filter plate 501 can automatically pop out under the action of the storage spring 505. With the help of the top pull plate 502, the filter plate 501 can be easily removed and installed.

[0026] A retaining plate 506 is slidably connected inside the filter plate 501. The retaining plates 506 are symmetrically installed on both sides of the filter plate 501 and are slidably connected inside the connecting ring 5. A limiting rod 507 is fixedly connected to the side of the retaining plate 506 away from the filter plate 501. The limiting rod 507 is symmetrically installed at both ends of the retaining plate 506. A pull rod 508 is fixedly connected to the end of the limiting rod 507 away from the retaining plate 506. A return spring 509 is sleeved on the outside of the limiting rod 507. One end of the return spring 509 is fixedly connected inside the connecting ring 5, and the other end of the return spring 509 is fixedly connected to the side of the retaining plate 506 away from the filter plate 501. Pulling the pull rod 508 can overcome the elastic force of the return spring 509, release the retaining plate 506 from fixing the filter plate 501, and allow the filter plate 501 to pop out smoothly.

[0027] Working principle: See Figures 1-5 As shown, when the device is ready to be used, first, place the device in the working area. The support foot 2 provides stable support for the drying chamber 1. Then, grasp and apply external force to pull the handle 302, so that the cover plate 301 turns around and opens away from the feed funnel 3. When the cover plate 301 reaches the maximum elevation angle, the feed funnel 3 opens completely. At this time, pour the solid water-soluble fertilizer to be dried into the feed funnel 3. Under the action of gravity, the fertilizer particles fall into the drying chamber 1 automatically, thus completing the feeding preparation of the device. See Figures 3-6 As shown, when the device enters the drying operation stage, firstly, grasp and apply external force to push the handle 302, causing the cover plate 301 to rotate and close towards the feed funnel 3. After the cover plate 301 is closed, the sealing ring 303 tightly fits the edge of the feed funnel 3, achieving an airtight seal and preventing hot air from escaping. Subsequently, connect the air inlet pipe 4 to the external fan, and input hot air into the air inlet pipe 4. The hot air is evenly distributed through the filter plate 501 in the connecting ring 5 and introduced into the drying chamber 1 through the air outlet 106. The filter plate 501 filters the hot air and blocks... Impurities enter the drying chamber 1 with the airflow. The water-soluble fertilizer particles falling into the drying chamber 1 flow to the surface of the filter plate 501 under the guidance of the upper baffle 104. Since the water-soluble fertilizer particles are large in size, they cannot pass through the filter plate 501 and therefore remain above the filter plate 501. At this time, hot air from the air outlet 106 continuously blows the water-soluble fertilizer particles from bottom to top. Under the guidance of the lower baffle 105, the hot air forms a swirling airflow from bottom to top, causing the water-soluble fertilizer particles to continuously tumble in the drying chamber 1 and come into full contact with the hot air, thereby achieving uniform hot air drying without stirring. See Figure 4As shown, when it is necessary to remove the dried fertilizer granules, first, grasp and apply external force to pull the handle 103, so that the baffle plate 102 moves away from the discharge funnel 101, opening the discharge channel of the discharge funnel 101. At this time, the dried water-soluble fertilizer granules flow out automatically through the discharge funnel 101 under the action of gravity, thus completing the discharge operation of the device. See Figures 7-9 As shown, when the filter plate 501 needs to be removed for cleaning, first, grasp and apply external force to pull both sets of levers 508 simultaneously. The limiting lever 507 causes the locking plate 506 to overcome the elastic force of the return spring 509 and move away from the filter plate 501, thereby releasing the locking plate 506 from limiting the filter plate 501. At this time, the storage spring 505 releases its elastic force, pushing the push plate 503 upwards, and the filter plate 501 moves upwards and pops out. During this process, the pushing rod 504 provides guiding support for the push plate 503 and the storage spring 505, preventing the push plate 503 from being pushed out. After the filter plate 501 pops out by shaking the energy storage spring 505, grasp and apply external force to pull the pull plate 502 to completely remove the filter plate 501 from the connecting ring 5 for cleaning. After cleaning, align the filter plate 501 and insert it into the connecting ring 5. At this time, the filter plate 501 gradually presses the push plate 503 and causes the energy storage spring 505 to recharge. Finally, release the pull rod 508. Under the elastic force of the reset spring 509, push the locking plate 506 to return to its original position and lock it into the filter plate 501, thereby achieving repositioning and fixing, thus completing the disassembly and assembly operation of the filter plate 501. It should be noted that the air inlet duct 4 mentioned above can be supplied with air using existing operating techniques, whether by using an air supply unit or an external pipeline. These are all existing conventional operating techniques and will not be described in detail here.

[0028] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying device for anti-caking, high-stability solid water-soluble fertilizer, comprising a drying chamber (1), a feeding funnel (3), and a connecting ring (5); characterized in that: The drying chamber (1) is fixedly connected to a support foot (2) on its side. The support foot (2) is symmetrically installed on both sides of the drying chamber (1). The feed funnel (3) is fixedly connected to the top of the drying chamber (1). An air inlet pipe (4) is provided at the bottom of the drying chamber (1). The connecting ring (5) is fixedly connected to the bottom of the drying chamber (1). The air inlet pipe (4) is fixedly connected to the side of the connecting ring (5) away from the drying chamber (1).

2. The drying device for anti-caking, high-stability solid water-soluble fertilizer according to claim 1, characterized in that: The feeding funnel (3) is located near the front of the drying chamber (1). The feeding funnel (3) has a regular tetrahedral structure. The air inlet pipe (4) is located near the feeding funnel (3).

3. A drying device for anti-caking, highly stable solid water-soluble fertilizer according to claim 1, characterized in that: The bottom of the drying chamber (1) is fixedly connected to a discharge funnel (101). The discharge funnel (101) is located near the back of the drying chamber (1). A baffle plate (102) is slidably connected inside the discharge funnel (101). A handle (103) is fixedly connected to the side of the baffle plate (102) away from the discharge funnel (101).

4. A drying device for anti-caking, highly stable solid water-soluble fertilizer according to claim 1, characterized in that: An upper baffle (104) and a lower baffle (105) are fixedly connected to the inner wall of the drying chamber (1). The upper baffle (104) is located near the top of the drying chamber (1), and the lower baffle (105) is located near the bottom of the drying chamber (1). An air outlet (106) is fixedly connected inside the drying chamber (1). The air outlet (106) is fixedly connected to one end of the connecting ring (5) near the drying chamber (1), and the air outlet (106) is located near the lower baffle (105).

5. A drying device for anti-caking, highly stable solid water-soluble fertilizer according to claim 1, characterized in that: The top of the feed hopper (3) is hinged with a cover plate (301), and a handle (302) is fixedly connected to the side of the cover plate (301) away from the feed hopper (3), and a sealing ring (303) is fixedly connected to the side of the cover plate (301) close to the feed hopper (3).

6. A drying device for anti-caking, highly stable solid water-soluble fertilizer according to claim 1, characterized in that: A filter plate (501) is slidably connected inside the connecting ring (5). A pull plate (502) is fixedly connected to the top of the filter plate (501). A push plate (503) is slidably connected inside the connecting ring (5). One side of the push plate (503) is tightly attached to the bottom of the filter plate (501). A push rod (504) is fixedly connected to the other side of the push plate (503). The push rod (504) is symmetrically installed at both ends of the push plate (503). A storage spring (505) is sleeved on the outside of the push rod (504). One end of the storage spring (505) is fixedly connected to the end of the push plate (503) away from the filter plate (501). One end of the storage spring (505) is fixedly connected inside the connecting ring (5).

7. A drying device for anti-caking, highly stable solid water-soluble fertilizer according to claim 6, characterized in that: A retaining plate (506) is slidably connected inside the filter plate (501). The retaining plates (506) are symmetrically installed on both sides of the filter plate (501). The retaining plates (506) are slidably connected inside the connecting ring (5). A limiting rod (507) is fixedly connected to the side of the retaining plate (506) away from the filter plate (501). The limiting rod (507) is symmetrically installed at both ends of the retaining plate (506). A pull rod (508) is fixedly connected to the end of the limiting rod (507) away from the retaining plate (506). A return spring (509) is sleeved on the outside of the limiting rod (507). One end of the return spring (509) is fixedly connected inside the connecting ring (5), and the other end of the return spring (509) is fixedly connected to the side of the retaining plate (506) away from the filter plate (501).