Slow-release fertilizer granulating and drying device

Abstract

The utility model discloses a slow-release fertilizer granulating and drying device, relates to the technical field of slow-release fertilizers, and aims to solve the problems that slow-release fertilizer particles are accumulated in a machine body, slow-release fertilizers below cannot be in sufficient contact with heat, the drying efficiency is low, heat is not recovered from hot air discharged from the machine body, heat loss is caused, and the practicability is low in the background technology. According to the scheme, the device comprises a base, a shell is arranged at the top of the base, and the shell comprises two mounting plates fixedly arranged on the outer walls of the two sides of the top of the base respectively, a heat preservation cylinder with the two ends connected to the outer walls of the opposite sides of the two mounting plates through bolts respectively and two ventilation plates with ventilation openings distributed at equal intervals formed in the outer walls of one sides; and an adjusting mechanism is arranged in the heat preservation cylinder. The slow-release fertilizer particles can be overturned, so that the slow-release fertilizer particles are in full contact with hot air, the drying efficiency is improved, waste heat recovery can be performed on the dried hot air, heat loss is prevented, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slow-release fertilizers, in particular to a slow-release fertilizer granulation and drying device. Background Art

[0002] Slow release means that the release rate of chemical substance nutrients is much lower than the release rate of plant available nutrients after the quick-soluble fertilizer is applied to the soil. Organic nitrogen compounds (such as urea formaldehyde) fertilizers that can be decomposed under biological or chemical action are usually called slow-release fertilizers. During the production process of slow-release fertilizers, it is necessary to dry the slow-release fertilizer granules.

[0003] After retrieval, the Chinese patent (application number "201921438121.9") discloses "a granulation and drying device for slow-release fertilizer production". The above device includes a machine body. A vibrating tray and a swing motor are arranged at the bottom of the machine body, and the swing motor is at the bottom of the vibrating tray. A first movable rod is arranged between the vibrating tray and the swing motor, and two second movable rods are arranged between the vibrating tray and the machine body, and the second movable rods are on both sides of the vibrating tray. Two first spring chambers and two second spring chambers are arranged inside the bottom end of the vibrating tray. However, during the use of the above device, the following problems exist:

[0004] 1. When drying the slow-release fertilizer granules, the slow-release fertilizer granules are stacked inside the machine body, and the lower slow-release fertilizer granules cannot fully contact with the heat, resulting in low drying efficiency;

[0005] 2. When drying the slow-release fertilizer granules, the hot air discharged from the machine body is not heat-recovered, resulting in heat loss and low practicability. Content of the Utility Model

[0006] The utility model provides a slow-release fertilizer granulation and drying device, which solves the problems that in the comparative document, the slow-release fertilizer granules are stacked inside the machine body, the lower slow-release fertilizer granules cannot fully contact with the heat, resulting in low drying efficiency, and the hot air discharged from the machine body is not heat-recovered, resulting in heat loss and low practicability.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A slow-release fertilizer granulation and drying device, including a base, a housing is provided on the top of the base. The housing includes two mounting plates respectively fixed on the outer walls of both sides of the top of the base, a heat preservation cylinder with both ends respectively bolted to the opposite outer walls of the two mounting plates, and two ventilation plates with equally spaced ventilation openings on one outer wall of each. An adjusting mechanism is provided in the heat preservation cylinder. The adjusting mechanism includes a drying cylinder connected to the inner wall of the heat preservation cylinder through a bearing and an adjusting motor bolted to the outer wall of one side of the heat preservation cylinder. A stirring assembly is provided in the drying cylinder. The stirring assembly includes a stirring motor bolted to the outer wall of one side of the heat preservation cylinder and a stirring member. A drying mechanism is provided above the base. The drying mechanism includes a recovery box bolted to the outer wall of the top of the base, a heat exchange tube with the top end penetrating and fixed on the outer wall of one side of the recovery box, and a hot air blower bolted to the outer wall of the top of the base.

[0009] Preferably, a feed hopper is fixed on the outer wall of the top of the heat preservation cylinder, and the feed hopper is communicated with the inside of the heat preservation cylinder. A discharge frame is fixed on the outer wall of the bottom of the heat preservation cylinder, and the discharge frame is communicated with the inside of the heat preservation cylinder. The two ventilation plates are respectively fixed on the inner walls of both sides of the heat preservation cylinder.

[0010] Preferably, both sides of the drying cylinder are respectively abutted against the outer wall of one side of the two ventilation plates, and equally spaced ventilation openings are provided on both outer walls of the drying cylinder. A through hole is provided on the outer wall of the drying cylinder. A rotating shaft is fixed on the outer wall of one side of the drying cylinder, and the rotating shaft is connected to the outer wall of one end of the output shaft of the adjusting motor through a coupling.

[0011] Preferably, a mounting shaft is connected to the outer wall of one end of the output shaft of the stirring motor through a coupling, and one end of the mounting shaft is connected to the inner wall of one side of the drying cylinder through a bearing. The stirring member is bolted to the outer wall of the mounting shaft, and the outer wall of the stirring member abuts against the inner wall of the drying cylinder.

[0012] Through the above scheme, the drying cylinder is driven to rotate by the output shaft of the adjusting motor, so that the through hole on the outer wall of the drying cylinder is communicated with the inside of the feed hopper. Then, the slow-release fertilizer particles are injected into the drying cylinder through the feed hopper. Subsequently, the output shaft of the stirring motor rotates a certain angle, and the slow-release fertilizer particles are injected into the drying cylinder again. Then, the output shaft of the adjusting motor rotates again, so that the through hole on the drying cylinder deflects. At this time, the output shaft of the stirring motor continues to rotate to turn over the slow-release fertilizer particles, so that the slow-release fertilizer particles are fully contacted with the hot air.

[0013] Preferably, a bearing plate is provided above the base, and both sides of the bearing plate are respectively fixed on the opposite outer walls of the two mounting plates.

[0014] Preferably, an air outlet pipe is fixedly arranged on the upper inner wall of one side of the heat preservation cylinder, and an air inlet pipe is fixedly arranged on the lower inner wall of one side of the heat preservation cylinder. A drain pipe is fixedly arranged on the outer wall of the bottom end of the heat exchange pipe, and one end of the drain pipe penetrates through and is fixedly arranged on the outer wall of one side of the recovery box. The top end of the heat exchange pipe is connected to the inner wall of one end of the air outlet pipe through a connecting pipe. A communicating pipe is fixedly arranged on the inner wall of one side of the recovery box, and one end of the communicating pipe is fixedly arranged on the outer wall of the air inlet end of the hot air blower. The air outlet end of the hot air blower is fixedly provided with an air delivery pipe, and the top end of the air delivery pipe is fixedly arranged on the inner wall of the air inlet pipe.

[0015] Through the above scheme, the dried hot air is conveyed into the recovery box through the air outlet pipe, the hot air blower sucks the cold air outside the recovery box into the recovery box, the cold air exchanges heat with the hot air in the heat exchange pipe, and the moisture in the hot air condenses on the heat exchange pipe and is discharged. Then the hot air enters the hot air blower, and after being reheated by the hot air blower, the hot air is conveyed into the heat preservation cylinder.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. An adjusting mechanism and a stirring assembly are provided. The output shaft of the adjusting motor drives the drying cylinder to rotate, so that the through holes on the outer wall of the drying cylinder are communicated with the inside of the feed hopper. Then, the slow-release fertilizer particles are injected into the drying cylinder through the feed hopper. Subsequently, the output shaft of the stirring motor rotates by a certain angle, and the slow-release fertilizer particles are injected into the drying cylinder again. Then, the output shaft of the adjusting motor rotates again, so that the through holes on the drying cylinder deflect. At this time, the output shaft of the stirring motor continues to rotate, and the slow-release fertilizer particles can be turned over, so that the slow-release fertilizer particles are fully contacted with the hot air, improving the drying efficiency.

[0018] 2. A drying mechanism is provided. The air outlet pipe conveys the dried hot air into the recovery box, the hot air blower sucks the cold air outside the recovery box into the recovery box, the cold air exchanges heat with the hot air in the heat exchange pipe, and the moisture in the hot air condenses on the heat exchange pipe and is discharged. Then the hot air enters the hot air blower, and after being reheated by the hot air blower, the hot air is conveyed into the heat preservation cylinder, which can recover the waste heat of the dried hot air, prevent heat loss, and improve the practicability.

[0019] In summary, the present utility model can turn over the slow-release fertilizer particles, so that the slow-release fertilizer particles are fully contacted with the hot air, improving the drying efficiency. It can recover the waste heat of the dried hot air, prevent heat loss, and improve the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic view of the overall main view three-dimensional structure of a slow-release fertilizer granulation and drying device proposed by the present utility model.

[0021] Figure 2 It is a schematic view of the main view sectional structure of a slow-release fertilizer granulation and drying device proposed by the present utility model.

[0022] Figure 3 This is a schematic main view sectional structure diagram of the housing of a slow-release fertilizer granulation and drying device proposed by the present utility model.

[0023] Figure 4 This is a schematic side view three-dimensional structure diagram of the adjusting mechanism of a slow-release fertilizer granulation and drying device proposed by the present utility model.

[0024] Figure 5 This is a schematic main view three-dimensional structure diagram of the stirring assembly of a slow-release fertilizer granulation and drying device proposed by the present utility model.

[0025] Figure 6 This is a schematic partial sectional structure diagram of the drying mechanism of a slow-release fertilizer granulation and drying device proposed by the present utility model.

[0026] In the figure: 1, base; 2, housing; 201, mounting plate; 202, insulating cylinder; 203, ventilation plate; 3, adjusting mechanism; 301, drying cylinder; 302, rotating shaft; 303, adjusting motor; 4, stirring assembly; 401, stirring motor; 402, mounting shaft; 403, stirring member; 5, bearing plate; 6, drying mechanism; 601, recovery box; 602, heat exchange tube; 603, connecting pipe; 604, hot air blower; 605, air delivery pipe. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] Example 1, refer to Figures 1-5, A slow-release fertilizer granulation and drying device, including a base 1. On the top of the base 1, there is a housing 2. The housing 2 includes two mounting plates 201 respectively fixed on the outer walls of both sides of the top of the base 1, a heat preservation cylinder 202 with both ends respectively bolted to the opposite outer walls of the two mounting plates 201, and two ventilation plates 203 with equally spaced ventilation openings on one outer wall of each. On the top outer wall of the heat preservation cylinder 202, there is a feed hopper fixed, and the feed hopper is connected to the inside of the heat preservation cylinder 202. On the bottom outer wall of the heat preservation cylinder 202, there is a discharge frame fixed, and the discharge frame is connected to the inside of the heat preservation cylinder 202. The two ventilation plates 203 are respectively fixed on the inner walls on both sides of the heat preservation cylinder 202. Inside the heat preservation cylinder 202, there is an adjustment mechanism 3. The adjustment mechanism 3 includes a drying cylinder 301 connected to the inner wall of the heat preservation cylinder 202 through a bearing and an adjustment motor 303 bolted to the outer wall on one side of the heat preservation cylinder 202. Both sides of the drying cylinder 301 respectively abut against the outer walls of the two ventilation plates 203. On both outer walls of the drying cylinder 301, there are equally spaced ventilation openings. There are through holes on the outer wall of the drying cylinder 301. On the outer wall on one side of the drying cylinder 301, there is a rotating shaft 302 fixed. The rotating shaft 302 is connected to the outer wall of one end of the output shaft of the adjustment motor 303 through a coupling. Inside the drying cylinder 301, there is a stirring component 4. The stirring component 4 includes a stirring motor 401 bolted to the outer wall on one side of the heat preservation cylinder 202 and a stirring member 403. On the outer wall of one end of the output shaft of the stirring motor 401, there is an installation shaft 402 connected through a coupling. One end of the installation shaft 402 is connected to the inner wall on one side of the drying cylinder 301 through a bearing. The stirring member 403 is bolted to the outer wall of the installation shaft 402. The outer wall of the stirring member 403 abuts against the inner wall of the drying cylinder 301. On the opposite outer walls of the two mounting plates 201, there is a bearing plate 5 fixed. The bearing plate 5 is used to support the collection box during unloading.

[0029] Example 2, referring to Figure 1 and Figure 6 , A slow-release fertilizer granulation and drying device further includes a drying mechanism 6. The drying mechanism 6 includes a recovery box 601 bolted to the outer wall on the top of the base 1, a heat exchange tube 602 with the top end penetrating and fixed on one outer wall of the recovery box 601, and a hot air blower 604 bolted to the outer wall on the top of the base 1. On the upper inner wall on one side of the heat preservation cylinder 202, there is an air outlet pipe fixed. On the lower inner wall on one side of the heat preservation cylinder 202, there is an air inlet pipe fixed. On the bottom outer wall of the heat exchange tube 602, there is a drain pipe fixed. One end of the drain pipe penetrates and is fixed on one outer wall of the recovery box 601. The top end of the heat exchange tube 602 is connected to the inner wall of one end of the air outlet pipe through a connecting pipe (not shown in the figure). On one inner wall of the recovery box 601, there is a connecting pipe 603 fixed. One end of the connecting pipe 603 is fixed on the outer wall of the air inlet end of the hot air blower 604. The air outlet end of the hot air blower 604 is fixed with an air delivery pipe 605. The top end of the air delivery pipe 605 is fixed on the inner wall of the air inlet pipe.

[0030] Working principle: Adjust the output shaft of the adjusting motor 303 to drive the drying cylinder 301 to rotate, so that the through holes on the outer wall of the drying cylinder 301 are communicated with the inside of the feed hopper. Inject the slow-release fertilizer particles into the drying cylinder 301 through the feed hopper. Subsequently, the output shaft of the stirring motor 401 rotates by a certain angle, and the slow-release fertilizer particles are injected into the drying cylinder 301 again, so that the slow-release fertilizer particles are relatively evenly filled in the space formed by the stirring member 403 and the drying cylinder 301. Then, the output shaft of the adjusting motor 303 rotates again, causing the through holes on the drying cylinder 301 to deflect, preventing hot air from entering the feed hopper through the through holes and causing heat loss. At this time, the output shaft of the stirring motor 401 continues to rotate to flip the slow-release fertilizer particles, so that the slow-release fertilizer particles are fully in contact with the hot air. The air outlet pipe conveys the dried hot air to the recovery box 601. The hot air blower 604 sucks the cold air outside the recovery box 601 into the recovery box 601. The cold air exchanges heat with the hot air in the heat exchange pipe 602, and causes the moisture in the hot air to condense in the heat exchange pipe 602 and be discharged. Subsequently, the hot air enters the hot air blower 604, and after being reheated by the hot air blower 604, the hot air is conveyed into the heat preservation cylinder 202. The output shaft of the adjusting motor 303 rotates to communicate the through holes on the drying cylinder 301 with the discharge frame, and then discharges the dried slow-release fertilizer particles.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A slow-release fertilizer granulation and drying device, comprising a base (1), characterized in that: A shell (2) is provided on the top of the base (1), and the shell (2) comprises two mounting plates (201) respectively fixed on the outer walls on both sides of the top of the base (1), a heat preservation tube (202) whose two ends are respectively connected to the outer walls on opposite sides of the two mounting plates (201) by bolts, and a ventilation plate (203) with ventilation holes equidistantly distributed on the outer walls on both sides; The heat preservation cylinder (202) is provided with an adjustment mechanism (3), and the adjustment mechanism (3) comprises a drying cylinder (301) connected to the inner wall of the heat preservation cylinder (202) via a bearing and an adjustment motor (303) connected to the outer wall of one side of the heat preservation cylinder (202) via bolts; The drying cylinder (301) is provided with a stirring assembly (4), and the stirring assembly (4) comprises a stirring motor (401) and a stirring member (403) connected to the outer wall of one side of the heat preservation cylinder (202) by bolts; A drying mechanism (6) is provided above the base (1), and the drying mechanism (6) comprises a recovery box (601) connected to the top outer wall of the base (1) by bolts, a heat exchange tube (602) having a top end penetrating through and fixed to the outer wall of one side of the recovery box (601), and a hot air blower (604) connected to the top outer wall of the base (1) by bolts.

2. A slow-release fertilizer granulation and drying device according to claim 1, characterized in that: A feed hopper is fixedly provided on the top outer wall of the insulation cylinder (202), and the feed hopper is connected to the interior of the insulation cylinder (202); a discharge frame is fixedly provided on the bottom outer wall of the insulation cylinder (202), and the discharge frame is connected to the interior of the insulation cylinder (202); and the two ventilation plates (203) are respectively fixedly provided on the inner walls on both sides of the insulation cylinder (202).

3. The slow-release fertilizer granulation and drying device according to claim 1, characterized in that: The two sides of the drying cylinder (301) are respectively in contact with the outer walls of one side of the two ventilation plates (203), and the outer walls of both sides of the drying cylinder (301) are provided with ventilation holes distributed at equal distances, and the outer wall of the drying cylinder (301) is provided with through holes, and a rotating shaft (302) is fixedly provided on the outer wall of one side of the drying cylinder (301), and the rotating shaft (302) is connected to the outer wall of one end of the output shaft of the regulating motor (303) through a coupling.

4. The slow-release fertilizer granulation and drying device according to claim 1, characterized in that: The outer wall of one end of the output shaft of the stirring motor (401) is connected to a mounting shaft (402) via a coupling, and one end of the mounting shaft (402) is connected to the inner wall of one side of the drying cylinder (301) via a bearing. The stirring member (403) is connected to the outer wall of the mounting shaft (402) via bolts, and the outer wall of the stirring member (403) abuts against the inner wall of the drying cylinder (301).

5. The slow-release fertilizer granulation and drying device according to claim 1, characterized in that: A bearing plate (5) is provided above the base (1), and two sides of the bearing plate (5) are respectively fixed on the outer walls of opposite sides of the two mounting plates (201).

6. The slow-release fertilizer granulation and drying device according to claim 1, characterized in that: An air outlet pipe is fixedly provided on the upper inner wall of one side of the heat preservation tube (202), and an air inlet pipe is fixedly provided on the lower inner wall of one side of the heat preservation tube (202). A drainage pipe is fixedly provided on the outer wall of the bottom end of the heat exchange tube (602), and one end of the drainage pipe passes through and is fixedly provided on the outer wall of one side of the recovery box (601). The top end of the heat exchange tube (602) is connected to the inner wall of one end of the air outlet pipe through a connecting pipe. A connecting pipe (603) is fixedly provided on the inner wall of one side of the recovery box (601), and one end of the connecting pipe (603) is fixedly provided on the outer wall of the air inlet end of the hot air blower (604). An air supply pipe (605) is fixedly provided on the air outlet end of the hot air blower (604), and the top end of the air supply pipe (605) is fixedly provided on the inner wall of the air inlet pipe.

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