Granulating and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor

By designing a granulation and drying device with components such as a support frame, drying box, and screening barrel, the problem of compound fertilizer granules being inconvenient to be dried and sorted in multiple locations in existing devices has been solved, achieving efficient granule drying and collection.

CN224034192UActive Publication Date: 2026-03-24ZHEJIANG JULONG FERTILIZER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing granulation and drying equipment is not convenient for multi-position air drying of compound fertilizer granules, and it is not conducive to classification, screening and collection, which affects the drying effect and speed.

Method used

A device was designed that includes a support frame, a drying chamber, a screening barrel, a drive motor, gears, a gear ring, a limiting slide rail, and multiple sets of fans. The drive motor drives the gears and gear ring to rotate the screening barrel, and the main and auxiliary cooling fans blow air to dry the compound fertilizer granules at multiple positions. The granules are then classified and collected through the holes in the screening barrel.

Benefits of technology

It enables convenient multi-position air drying and classified screening collection, improving the drying effect and speed of compound fertilizer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a granulating and drying device for preparing granular compound fertilizer by potassium sulfate co-production mother liquor, which comprises a support frame and a drying box, the drying box is arranged above the support frame and is fixedly connected with the support frame, the bottom end of the support frame is provided with a discharge bin, the discharge bin is fixedly connected with the support frame, and the support frame is fixedly connected with the drying box. A partition plate is installed in the discharging bin, a driving motor is installed in the center of the top end of the supporting frame, a driving shaft is installed at the output end of the driving motor, the surface of the driving shaft is sleeved with a gear, and a screening barrel is arranged at the position, on one side of the driving motor, of the top end of the supporting frame. The outer wall of the screening barrel on one side of the gear is sleeved with a gear ring, and the gear is meshed with the gear ring. According to the compound fertilizer drying device, the compound fertilizer particles can be conveniently blown and dried at multiple positions, the compound fertilizer particles can be conveniently classified, screened and collected, and the drying effect and speed of the compound fertilizer are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to granulating drying device technical field, concretely is a kind of granulating drying device for granular compound fertilizer prepared by potassium sulfate coproduction mother liquor. BACKGROUND

[0002] Compound fertilizer refers to the fertilizer containing two or more than two main nutrient elements, according to the quantity of nutrient element, it can be divided into binary compound fertilizer (such as nitrogen phosphorus fertilizer), ternary compound fertilizer (such as nitrogen phosphorus potassium fertilizer) and multi-element compound fertilizer (containing more trace elements), compound fertilizer is widely used in various crops, such as food crops (rice, wheat), economic crops (fruit trees, vegetables) and the like, and the process of compound fertilizer granulation is various, and the compound fertilizer particles produced by each process are different, in the spray granulation process, particles are formed under the action of gravity by spraying, but the size of the raw material particles sprayed out is different, and the traditional drying device does not have the function of screening and classifying compound fertilizer particles when drying compound fertilizer particles, in order to improve the situation, a granulating drying device for granular compound fertilizer prepared by potassium sulfate coproduction mother liquor is provided.

[0003] As disclosed in the authorized announcement No. CN110743775B, a kind of compound fertilizer granulating drying device, including base, screening device one and screening device two, screening device one is movably installed on the base and screening device one can rotate on the base, screening device one with screening device two is movably connected and screening device two with screening device one can be relatively free rotation;

[0004] Although the rotation effect of compound fertilizer particles can make the particles more tend to spherical shape, ensure that the shape of each particle is regular, reduce the content of irregular particles in compound fertilizer, avoid the friction between particles after bagging, which can affect the fertilizer in the whole bag;

[0005] However, the existing granulating drying device cannot conveniently blow and dry compound fertilizer particles at multiple positions, which is not conducive to classifying, screening and collecting compound fertilizer particles, and affects the drying effect and speed of compound fertilizer. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of granulating drying device for granular compound fertilizer prepared by potassium sulfate coproduction mother liquor, to solve the problem of the above background technology that the granulating drying device is not convenient for conveniently blowing and drying compound fertilizer particles at multiple positions, which is not conducive to classifying, screening and collecting compound fertilizer particles, and affects the drying effect and speed of compound fertilizer.

[0007] To achieve the above object, the utility model provides the following technical scheme: A granulation drying device for preparing granular compound fertilizer by potassium sulfate coproduction mother liquor, including support frame and drying box, the top of support frame is provided with drying box, and drying box is fixedly connected with support frame, the bottom of support frame is provided with discharge bin, and discharge bin is fixedly connected with support frame, the inside of discharge bin is installed with baffle, the top center position of support frame is installed with driving motor, the output of driving motor is installed with driving shaft, the surface of driving shaft is equipped with gear, the top of support frame one side of gear is provided with screening bucket, the outer wall of screening bucket one side is equipped with gear ring.

[0008] Preferably, the gear and the gear ring are in mesh with each other, and the outer wall of the screening bucket on both sides of the gear ring is installed with a limiting slide rail.

[0009] Preferably, the top of the support frame on one side of the limiting slide rail is symmetrically movably installed with a bearing wheel, and the bearing wheel is slidably connected with the limiting slide rail.

[0010] Preferably, the inner wall of the drying box is provided with multiple groups of connecting frames at equal intervals, and the connecting frames are fixedly connected with the drying box.

[0011] Preferably, the side wall of the connecting frame is provided with a placing rack, and the placing rack is fixedly connected with the connecting frame.

[0012] Preferably, the bottom of the placing rack is installed with a main heat dissipation fan, and the main heat dissipation fan is fixedly connected with the placing rack.

[0013] Preferably, the two ends of the connecting frame are provided with adjusting arms, one end of the adjusting arm close to the connecting frame is provided with a pin shaft, and the adjusting arm is movably connected with the connecting frame through the pin shaft.

[0014] Preferably, the bottom of the connecting frame is symmetrically provided with an electric push rod, and the electric push rod is movably connected with the connecting frame.

[0015] Preferably, the output end of the electric push rod is installed with a push arm, one end of the push arm close to the adjusting arm is provided with a linkage shaft, and the push arm is movably connected with the adjusting arm through the linkage shaft.

[0016] Preferably, the bottom of the adjusting arm is provided with a secondary heat dissipation fan, and the secondary heat dissipation fan is fixedly connected with the adjusting arm.

[0017] Compared with the prior art, the utility model has the beneficial effects that: the granulation drying device not only realizes convenient multi-position blowing and drying of the compound fertilizer particles, facilitates classification, screening and collection of the compound fertilizer particles, but also improves the effect and speed of compound fertilizer drying.

[0018] The finished compound fertilizer particles produced by the spray granulation are poured into the inside of the screening barrel, the gear is driven to rotate by the driving motor through the driving shaft, the screening barrel is driven to rotate by the gear through the gear ring, the compound fertilizer particles are moved by the screening barrel, and the compound fertilizer particles are blown and dried by the main heat dissipation fan and the auxiliary heat dissipation fan through the holes in the surface of the screening barrel, so that the drying operation of the compound fertilizer particles is completed; in the movement of the compound fertilizer, the compound fertilizer particles with a particle diameter smaller than the hole diameter of the right half of the screening barrel fall into the inside of the discharge bin through the screening barrel, and the small particle compound fertilizer particles are collected uniformly under the separation of the partition plate; the compound fertilizer particles with a particle diameter smaller than the hole diameter of the left half of the screening barrel fall into the inside of the discharge bin from the left half of the screening barrel, and the large particle diameter compound fertilizer particles are collected uniformly, so that the classification and screening operation of the compound fertilizer particles is completed, and the blowing and drying of the compound fertilizer particles at multiple positions are realized, and the classification and screening collection of the compound fertilizer particles are facilitated.

[0019] The push arm is driven to move by the electric push rod, the adjusting arm is driven to rotate about the pin shaft by the push arm through the linkage shaft, the auxiliary heat dissipation fan is driven to rotate by the adjusting arm, so that the auxiliary heat dissipation fan is close to the screening barrel, the loss of wind power is reduced, the drying speed of the compound fertilizer is accelerated, and the drying effect of the compound fertilizer is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional perspective structure schematic diagram of the drying box of the utility model;

[0022] Figure 3 It is a front view sectional structure schematic diagram of the utility model;

[0023] Figure 4 It is a side view sectional structure schematic diagram of the screening barrel of the utility model;

[0024] Figure 5 It is a side view sectional structure schematic diagram of the placing rack of the utility model.

[0025] In the drawing: 1, support frame; 2, drying box; 3, screening barrel; 4, limiting slide rail; 5, bearing wheel; 6, gear ring; 7, driving motor; 8, gear; 9, driving shaft; 10, connecting frame; 11, discharge bin; 12, partition plate; 13, placing rack; 14, main heat dissipation fan; 15, electric push rod; 16, push arm; 17, pin shaft; 18, linkage shaft; 19, adjusting arm; 20, auxiliary heat dissipation fan. DETAILED DESCRIPTION

[0026] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] Embodiment one

[0030] Please refer to Figures 1-5 The present application provides an embodiment: a granulation drying device for preparing granular compound fertilizer by potassium sulfate co-production mother liquor, which comprises a support frame 1 and a drying box 2, the upper part of the support frame 1 is provided with the drying box 2, and the drying box 2 is fixedly connected with the support frame 1, the bottom end of the support frame 1 is provided with a discharge bin 11, and the discharge bin 11 is fixedly connected with the support frame 1, a partition plate 12 is installed in the inside of the discharge bin 11, a driving motor 7 is installed at the center position of the top end of the support frame 1, the driving motor 7 plays a role of power driving, a driving shaft 9 is installed at the output end of the driving motor 7, a gear 8 is sleeved on the surface of the driving shaft 9, a screening barrel 3 is arranged at the top end of the support frame 1 on one side of the driving motor 7, a gear ring 6 is sleeved on the outer wall of the screening barrel 3 on one side of the gear 8, and the gear 8 and the gear ring 6 are meshed with each other, limit sliding rails 4 are installed on the outer walls of the screening barrels 3 on both sides of the gear ring 6, load wheels 5 are symmetrically and movably installed at the top end of the support frame 1 on one side of the limit sliding rails 4, and the load wheels 5 are slidably connected with the limit sliding rails 4;

[0031] The compound fertilizer granules produced by spray granulation are poured into the screening tank 3. At this time, the drive motor 7 is turned on, and the drive motor 7 drives the gear 8 to rotate via the drive shaft 9. With the gear 8 meshing with the gear ring 6 and the sliding engagement between the bearing wheel 5 and the limiting slide rail 4, the gear 8 drives the screening tank 3 to rotate via the gear ring 6. The screening tank 3 then moves the compound fertilizer granules. Simultaneously, the main cooling fan 14 and the auxiliary cooling fan 20 are turned on, blowing air into the screening tank 3 through the holes on its surface to dry the compound fertilizer granules. In the drying operation of fertilizer granules, during the movement of the compound fertilizer, compound fertilizer granules with a diameter smaller than the diameter of the holes in the right half of the screening barrel 3 fall into the discharge bin 11 through the screening barrel 3. Under the separation of the partition 12, the small compound fertilizer granules are collected uniformly. Compound fertilizer granules with a diameter smaller than the diameter of the holes in the left half of the screening barrel 3 fall into the discharge bin 11 from the left half of the screening barrel 3. In the same way, the large-diameter compound fertilizer granules are collected uniformly to complete the classification and screening operation of compound fertilizer granules. This realizes convenient multi-position air drying of compound fertilizer granules and facilitates the classification, screening and collection of compound fertilizer granules.

[0032] Multiple sets of connecting frames 10 with equal spacing are provided on the inner wall of the drying oven 2, and the connecting frames 10 are fixedly connected to the drying oven 2.

[0033] Each side wall of the connecting frame 10 is provided with a placement rack 13, and the placement rack 13 is fixedly connected to the connecting frame 10. Each placement rack 13 is equipped with a main cooling fan 14 at its bottom end, and the main cooling fan 14 is fixedly connected to the placement rack 13.

[0034] Both ends of the connecting frame 10 are provided with adjusting arms 19. The end of the adjusting arm 19 near the connecting frame 10 is provided with a pin 17, and the adjusting arm 19 is movably connected to the connecting frame 10 through the pin 17. The bottom end of the connecting frame 10 is symmetrically provided with electric push rods 15, which play a power driving role and are movably connected to the connecting frame 10.

[0035] Each of the output ends of the electric push rod 15 is equipped with a push arm 16. Each push arm 16 is equipped with a linkage shaft 18 at the end near the adjusting arm 19. The push arm 16 is movably connected to the adjusting arm 19 through the linkage shaft 18. Each of the bottom ends of the adjusting arm 19 is equipped with an auxiliary cooling fan 20, and the auxiliary cooling fan 20 is fixedly connected to the adjusting arm 19.

[0036] The electric push rod 15 is opened, the push arm 16 is driven to move by the electric push rod 15, the adjusting arm 19 is driven to rotate by the push arm 16 through the linkage shaft 18, the auxiliary heat dissipation fan 20 is driven to rotate by the adjusting arm 19, the auxiliary heat dissipation fan 20 is close to the screening barrel 3, the loss of wind power is reduced, the speed of the compound fertilizer drying is accelerated, and the effect of the compound fertilizer drying is improved.

[0037] Working steps

[0038] The produced compound fertilizer particles are poured into the inside of the screening barrel 3, the gear 8 is driven to rotate by the driving motor 7 through the driving shaft 9, the screening barrel 3 is driven to rotate by the gear 8 through the gear ring 6 under the sliding cooperation of the bearing wheel 5 and the limiting slide rail 4, the compound fertilizer particles are driven to move by the screening barrel 3, the compound fertilizer particles are blown and dried by the main heat dissipation fan 14 and the auxiliary heat dissipation fan 20 through the holes on the surface of the screening barrel 3 to the inside of the screening barrel 3, the drying operation of the compound fertilizer particles is completed, in the process that the compound fertilizer moves, the compound fertilizer particles with a particle diameter smaller than the hole diameter of the right half part of the screening barrel 3 fall into the inside of the discharge bin 11 through the screening barrel 3, and the small-particle compound fertilizer particles are collected under the separation of the partition plate 12, the compound fertilizer particles with a particle diameter smaller than the hole diameter of the left half part of the screening barrel 3 fall into the inside of the discharge bin 11 from the left half part of the screening barrel 3, and the large-particle compound fertilizer particles are collected, the classification and screening operation of the compound fertilizer particles is completed, the auxiliary heat dissipation fan 20 is driven to rotate by the electric push rod 15, the push arm 16 is driven to move by the electric push rod 15, the adjusting arm 19 is driven to rotate by the push arm 16 through the linkage shaft 18, the auxiliary heat dissipation fan 20 is driven to rotate by the adjusting arm 19, the auxiliary heat dissipation fan 20 is close to the screening barrel 3, the loss of wind power is reduced, and the speed of the compound fertilizer drying is accelerated, and the above is the whole use content of the granulation and drying device for preparing the compound fertilizer from the potassium sulfate coproduction mother liquor.

[0039] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor, comprising a support frame (1) and a drying box (2), characterized in that: A drying box (2) is provided above the support frame (1), and the drying box (2) is fixedly connected to the support frame (1). A discharge bin (11) is provided at the bottom of the support frame (1), and the discharge bin (11) is fixedly connected to the support frame (1). A partition (12) is installed inside the discharge bin (11). A drive motor (7) is installed at the center of the top of the support frame (1). A drive shaft (9) is installed at the output end of the drive motor (7). A gear (8) is fitted on the surface of the drive shaft (9). A screening bin (3) is provided at the top of the support frame (1) on one side of the drive motor (7). A gear ring (6) is fitted on the outer wall of the screening bin (3) on one side of the gear (8).

2. The granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor according to claim 1, characterized in that: The gear (8) meshes with the gear ring (6), and limit slide rails (4) are installed on the outer walls of the screening barrels (3) on both sides of the gear ring (6).

3. The granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor according to claim 2, characterized in that: The top of the support frame (1) on one side of the limiting slide rail (4) is symmetrically and movably equipped with a bearing wheel (5), and the bearing wheel (5) is slidably connected to the limiting slide rail (4).

4. The granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor according to claim 1, characterized in that: The inner wall of the drying box (2) is provided with multiple sets of connecting frames (10) at equal intervals, and the connecting frames (10) are fixedly connected to the drying box (2).

5. The granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor according to claim 4, characterized in that: Each of the connecting frame (10) is provided with a placement rack (13) on its side wall, and the placement rack (13) is fixedly connected to the connecting frame (10).

6. The granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor according to claim 5, characterized in that: Each of the placement racks (13) is equipped with a main cooling fan (14) at its bottom end, and the main cooling fan (14) is fixedly connected to the placement rack (13).

7. The granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor according to claim 4, characterized in that: Both ends of the connecting frame (10) are provided with adjusting arms (19), and the end of the adjusting arm (19) near the connecting frame (10) is provided with a pin (17), and the adjusting arm (19) is movably connected to the connecting frame (10) through the pin (17).

8. The granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor according to claim 4, characterized in that: Each of the connecting frames (10) is symmetrically provided with an electric push rod (15) at its bottom end, and the electric push rod (15) is movably connected to the connecting frame (10).

9. The granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor according to claim 8, characterized in that: Each of the electric push rods (15) has a push arm (16) installed at its output end. Each push arm (16) has a linkage shaft (18) at the end near the adjusting arm (19), and the push arm (16) is movably connected to the adjusting arm (19) through the linkage shaft (18).

10. The granulation and drying device for preparing granular compound fertilizer from potassium sulfate co-production mother liquor according to claim 7, characterized in that: Each of the adjusting arms (19) is provided with a secondary cooling fan (20) at its bottom end, and the secondary cooling fan (20) is fixedly connected to the adjusting arm (19).

Citation Information

Patent Citations

  • A compound fertilizer granulation and drying device

    CN110743775B