Low-temperature large-air-volume organic compound fertilizer drying and cooling device

Abstract

The utility model relates to the technical field of roller drying equipment, in particular to a low-temperature large-air-volume organic compound fertilizer drying and cooling device which comprises a base, a short roller, a long roller, a feeding pipe, a discharging pipe and the like. Each base is fixedly connected with a short roller; a long roller is rotationally connected between the two short rollers; each short roller is communicated with an air inlet pipe; the short roller on one side is communicated with a feeding pipe; and the short roller on the other side is communicated with a discharge pipe. According to the low-temperature large-air-volume organic compound fertilizer drying and cooling device obtained through the design, the external air blower is controlled, air in the protective cover, the round pipe and the cylinder is continuously exhausted through the four exhaust pipes, cold and hot air flow entering the middle of the long roller is exhausted away by the external air blower, and therefore the drying and cooling effects are achieved. And therefore, the cold and hot air flows in the long roller form stable circulation.

Description

Technical Field

[0001] This utility model relates to the technical field of drum drying equipment, and more specifically, to a low-temperature, high-volume organic compound fertilizer drying and cooling device. Background Technology

[0002] In the prior art, Chinese patent (CN209840664U) discloses a novel drum-type drying and cooling integrated machine. This device has hot air and cold air inlets at the front and rear ends of the rotating drum, respectively. Hot air enters from the front end of the rotating drum, and cold air enters from the rear end. The hot and cold air move in opposite directions and are finally drawn out from the air collection hood in the middle, forming a working environment with high-temperature drying at the front and room-temperature cooling at the rear, achieving the effect of integrated drying and cooling. However, because the inner wall of the rotating drum of this device is smooth, the material not only moves slowly when conveying materials, but also cannot be turned over. This causes some materials to remain at the bottom of the rotating drum for a long time, making it difficult for them to be dried and cooled by hot and cold air, resulting in the quality of this part of the material being substandard. Utility Model Content

[0003] To overcome the shortcomings of existing equipment where the inner wall of the rotating drum is smooth, resulting in slow material movement and an inability to tumble the conveyed material, causing some material to remain at the bottom of the rotating drum for extended periods and thus failing to be dried and cooled by hot and cold air, leading to substandard quality of that material, a drying and cooling device is provided. This device can tumble the granular fertilizer during the drying and cooling process, ensuring that all granular fertilizer is dried and cooled, and increasing the conveying speed of the granular fertilizer.

[0004] Another objective of this invention is to provide a low-temperature, high-volume organic compound fertilizer drying and cooling device with the above-mentioned functions.

[0005] The embodiments of this utility model are achieved through the following technical solution: a low-temperature, high-volume organic compound fertilizer drying and cooling device, comprising a base, a short drum, a long drum, an inlet pipe, and a discharge pipe; a short drum is fixedly connected to each base; a long drum is rotatably connected between two short drums; an air inlet pipe is connected to each short drum; an inlet pipe is connected to one side of the short drum; a discharge pipe is connected to the other side of the short drum; it also includes a power component, a driven component, spiral blades, round tubes, a cylinder, a filter screen, and an air extraction component; the power component is connected to the outside of the long drum; a driven component for assisting the rotation of the long drum is connected to the outside of the long drum; several spiral blades arranged in a circular array are fixedly connected inside the long drum; several round tubes are provided on the long drum; all round tubes and all spiral blades are staggered; a cylinder is connected to all round tubes; a filter screen is provided at each end of the cylinder; an air extraction component for absorbing gas is connected to the outside of the long drum; the power component is used to drive the long drum, spiral blades, round tubes, cylinder, and filter screen to rotate together.

[0006] As an improvement to the above solution, the power assembly includes a mounting bracket, a servo motor, a support plate, a round shaft, a spur gear, and a gear ring. The mounting bracket is located below the long roller. The servo motor is fixedly mounted on the mounting bracket. Two support plates are fixedly mounted on the mounting bracket, and the two support plates are located to the left of the servo motor. The round shaft is rotatably connected to the two support plates. The output shaft of the servo motor is fixedly connected to the round shaft. A spur gear is fixedly mounted on the round shaft. A gear ring is fixedly mounted on the outer surface of the long roller. The gear ring meshes with the spur gear.

[0007] As an improvement to the above solution, the driven assembly includes a mounting plate, driven wheels, and limiting rings; two mounting plates are provided below the long roller, and the two mounting plates are respectively located near the two short rollers; two driven wheels are fixedly connected to each mounting plate; two limiting rings are fixedly connected to the outer surface of the long roller, and the two limiting rings are respectively located between two adjacent driven wheels.

[0008] As an improvement to the above solution, the air extraction assembly includes a second mounting bracket, a connecting frame, a protective cover, and an air extraction pipe; a second mounting bracket is provided at the lower front and lower rear of the long roller; a connecting frame is fixedly connected to each second mounting bracket; a protective cover is fixedly connected to both connecting frames; the protective cover is rotatably connected to the middle of the outer surface of the long roller; several air extraction pipes arranged in a circular array are provided on the left side of the protective cover, and the air extraction pipes, the protective cover, the circular pipe, and the cylindrical tube are connected.

[0009] As an improvement to the above solution, it also includes a circular frame rotatably connected to the protective cover; a slip ring slidably connected to the circular frame; a retaining ring fixed to the left and right sides of the circular frame; a folded canvas fixed to each side of the slip ring; each of the two folded canvases fixed to a retaining ring; several electric push rods arranged in a circular array fixed to the left side of the outer surface of the protective cover; a slider fixed to the telescopic part of each electric push rod; an annular groove opened on the slip ring; all sliders slidingly disposed within the annular groove; several connecting rods fixed to the inner ring surface of the slip ring; several connecting rods passing through the long roller, and all connecting rods located within a circular tube; all connecting rods being fixed to a guide plate; the guide plate being slidably connected to the inner ring surface of the cylinder.

[0010] As an improvement to the above scheme, it also includes a ring rotatably connected to the inside of the left short roller; several arched plates are fixed on the ring in a circular array, and each of the arched plates is in contact with a helical blade.

[0011] As an improvement to the above scheme, the inner side of the short roller on the right is truncated cone-shaped.

[0012] Beneficial effects:

[0013] The present invention provides a low-temperature, high-volume organic compound fertilizer drying and cooling device designed above. By controlling an external blower, the device continuously extracts gas from the protective cover, the circular pipe, and the cylinder through four extraction pipes. This allows the cold and hot airflow entering the middle of the long drum to be drawn away by the external blower, thus creating a stable circulation of cold and hot airflow within the long drum.

[0014] The low-temperature, high-volume organic compound fertilizer drying and cooling device of this invention, through the above design, by setting six spiral blades on the inner wall of the long drum, can not only improve the conveying speed of granular fertilizer, but also realize the operation of circulating and tumbling of granular fertilizer at the bottom of the long drum, so that all granular fertilizer can be dried and cooled, ensuring the quality of all granular fertilizer.

[0015] The low-temperature, high-volume organic compound fertilizer drying and cooling device of this invention, through the above design, can avoid the problem of granular fertilizer being blown into the cylinder by cold or hot airflow by setting filter screens on both sides of the cylinder.

[0016] This utility model, through the aforementioned design, provides a low-temperature, high-volume organic compound fertilizer drying and cooling device. By sealing the right end of the cylinder with a guide plate, the hot airflow from the hot air blower can only flow from the outside of the cylinder to the left. Because the space for circulation is reduced while the continuously blown airflow remains constant, the flow velocity on the outside of the cylinder increases, improving the effect of the hot airflow in removing residual granular fertilizer inside the long drum. Simultaneously, an external blower is controlled to blow air into the exhaust pipe, protective cover, cylindrical pipe, and cylinder. Because the right end of the cylinder is sealed, the airflow blown into the cylinder will exit from the left end, further strengthening the airflow flowing to the left inside the long drum. This ensures that the residual granular fertilizer on the left side of the long drum is blown away by the continuously flowing airflow. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0018] Figure 1 This is a three-dimensional structural diagram of the low-temperature, high-volume organic compound fertilizer drying and cooling device of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the base, short drum, long drum, spiral blades, circular tube, cylindrical tube, and filter screen of the low-temperature, high-volume organic compound fertilizer drying and cooling device of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the long drum, spiral blades, circular tube, cylindrical tube, and filter screen of the low-temperature, high-volume organic compound fertilizer drying and cooling device of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the long drum, protective cover, circular frame, slip ring, retaining ring, folding canvas, electric push rod and slider of the low temperature large air volume organic compound fertilizer drying and cooling device of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the circular tube, cylindrical tube, connecting rod, and guide plate of the low-temperature, high-volume organic compound fertilizer drying and cooling device of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the short drum, long drum, discharge pipe, spiral blades, ring, and arched plate of the low-temperature, high-volume organic compound fertilizer drying and cooling device of this utility model.

[0024] Labels in the diagram:

[0025] 1-Base, 2-Short roller, 3-Long roller, 4-Infeed pipe, 5-Discharge pipe, 6-Spiral blade, 7-Round tube, 8-Cylinder, 9-Filter screen;

[0026] 101-Mounting bracket one, 102-Servo motor, 103-Support plate, 104-Round shaft, 105-Spur gear, 106-Gear ring;

[0027] 201-Mounting plate, 202-Driven wheel, 203-Limit ring;

[0028] 301-Mounting bracket 2, 302-Connecting bracket, 303-Protective cover, 304-Extraction pipe;

[0029] 401-Circular frame, 402-Slip ring, 403-Stop ring, 404-Folding canvas, 405-Electric push rod, 406-Slider, 407-Connecting rod, 408-Guide plate;

[0030] 501 - Circular ring, 502 - Arched plate;

[0031] 2001 - Intake pipe, 40201 - Annular groove. Detailed Implementation

[0032] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0033] Example 1

[0034] A low-temperature, high-volume airflow drying and cooling device for organic compound fertilizer, such as Figures 1-6 As shown, it includes a base 1, a short roller 2, a long roller 3, a feed pipe 4, and a discharge pipe 5; a short roller 2 is fixedly connected to each base 1; a long roller 3 is rotatably connected between two short rollers 2; an air inlet pipe 2001 is connected to each short roller 2; a feed pipe 4 is connected to one side of the short roller 2; and a discharge pipe 5 is connected to the other side of the short roller 2.

[0035] It also includes a power assembly, a driven assembly, helical blades 6, circular tubes 7, cylinders 8, filters 9, and an air extraction assembly; the power assembly is connected to the outside of the long roller 3; the driven assembly is connected to the outside of the long roller 3; six helical blades 6 arranged in a circular array are fixed inside the long roller 3; six circular tubes 7 are provided on the long roller 3, and all the circular tubes 7 are located in the middle of the long roller 3; all the circular tubes 7 and all the helical blades 6 are staggered; all the circular tubes 7 are connected to a cylinder 8, and the cylinder 8 is located inside the long roller 3; a filter 9 is provided at each end of the cylinder 8; an air extraction assembly is connected to the outside of the long roller 3; the power assembly is used to drive the long roller 3, helical blades 6, circular tubes 7, cylinders 8, and filters 9 to rotate together.

[0036] The power assembly includes a mounting bracket 101, a servo motor 102, a support plate 103, a round shaft 104, a spur gear 105, and a gear ring 106. The mounting bracket 101 is located below the long roller 3. The servo motor 102 is bolted to the mounting bracket 101. Two support plates 103 are fixed to the mounting bracket 101, and the two support plates 103 are located to the left of the servo motor 102. The round shaft 104 is rotatably connected to the two support plates 103. The output shaft of the servo motor 102 is fixed to the round shaft 104. The spur gear 105 is fixed to the round shaft 104. The gear ring 106 is fixed to the outer surface of the long roller 3. The gear ring 106 meshes with the spur gear 105.

[0037] The driven assembly includes a mounting plate 201, driven wheels 202, and limiting rings 203. Two mounting plates 201 are provided below the long roller 3, and the two mounting plates 201 are respectively located near the two short rollers 2. Two driven wheels 202 are fixedly connected to each mounting plate 201. Two limiting rings 203 are fixedly connected to the outer surface of the long roller 3, and the two limiting rings 203 are respectively located between two adjacent driven wheels 202. The driven wheels 202 restrict the limiting rings 203 and assist the limiting rings 203 in rotating.

[0038] The air extraction assembly includes a second mounting bracket 301, a connecting bracket 302, a protective cover 303, and an air extraction pipe 304; a second mounting bracket 301 is provided at the lower front and lower rear of the long roller 3; a connecting bracket 302 is fixedly connected to each second mounting bracket 301; a protective cover 303 is fixedly connected to both connecting brackets 302; the protective cover 303 is rotatably connected to the middle of the outer surface of the long roller 3; four air extraction pipes 304 arranged in a ring array are provided on the left side of the protective cover 303, and the air extraction pipes 304, the protective cover 303, the circular pipe 7, and the cylindrical cylinder 8 are connected.

[0039] It also includes a circular frame 401 rotatably connected to the protective cover 303; a slip ring 402 is slidably connected to the circular frame 401; a retaining ring 403 is fixedly connected to the left and right sides of the circular frame 401; a folded canvas 404 is fixedly connected to each side of the slip ring 402; each of the two folded canvases 404 is fixedly connected to a retaining ring 403; three electric push rods 405 arranged in a circular array are fixedly connected to the left side of the outer surface of the protective cover 303; the extension and retraction of each electric push rod 405... Each part is fixedly connected to a slider 406; the outer surface of the slip ring 402 is provided with an annular groove 40201; all sliders 406 are slidably disposed in the annular groove 40201; six connecting rods 407 are fixedly connected to the inner ring surface of the slip ring 402; several connecting rods 407 pass through the long roller 3, and all connecting rods 407 are located in a circular tube 7; all connecting rods 407 are fixedly connected to a guide plate 408; the guide plate 408 is slidably connected to the inner ring surface of the cylinder 8.

[0040] It also includes a ring 501 rotatably connected to the inner side of the left short roller 2; six arched plates 502 arranged in a ring array are fixed on the ring 501, and each of the arched plates 502 is in contact with a spiral blade 6.

[0041] To prevent granular fertilizer from accumulating inside the short roller 2, the inner side of the right short roller 2 is shaped like a frustum.

[0042] The working steps of this embodiment are as follows:

[0043] The following orientations are based on the viewpoint shown in the diagram, with the direction of discharge pipe number 5 being to the left;

[0044] The rotations described below refer to views from front to back, from top to bottom, and from right to left.

[0045] When using this device, first install it in the required position. Connect a cold air blower to the air inlet pipe 2001 of the left short drum 2, a hot air blower to the air inlet pipe 2001 of the right short drum 2, a blower to the four exhaust pipes 304, and a fertilizer granulator to the feed pipe 4. Then connect an external power source to all components that require electric drive.

[0046] Once preparations are complete, the operator controls the output shaft of the servo motor 102 to rotate the spur gear 105 counterclockwise. The spur gear 105 then drives the gear ring 106 to rotate clockwise. When the gear ring 106 rotates, it drives the long roller 3, spiral blades 6, circular tube 7, cylindrical tube 8, filter screen 9, limit ring 203, circular frame 401, slip ring 402, retaining ring 403, folded canvas 404, connecting rod 407, and guide plate 408 to rotate clockwise together. During the rotation of the limit ring 203, it causes the corresponding driven wheel 202 to rotate. Simultaneously, the external cold and hot air blowers are activated, blowing air into the long roller 3 through the left and right air inlets 2001. The cold air continuously delivered by the air cooler forms a low-temperature cold airflow on the left side of the long drum 3, while the hot air continuously delivered by the hot air cooler forms a high-temperature hot airflow on the right side of the long drum 3. Then, the external blower is turned on to extract the air. At this time, because the exhaust pipe 304, the protective cover 303, the circular pipe 7 and the cylinder 8 are connected, the gas inside the protective cover 303, the circular pipe 7 and the cylinder 8 are continuously extracted through the four exhaust pipes 304. During the process of the gas being extracted from the cylinder 8, the two ends of the cylinder 8 will also generate suction to extract the gas from the long drum 3. At this time, the cold and hot airflows continue to flow into the cylinder 8 in the middle of the long drum 3 and are extracted by the external blower, so that the cold and hot airflows inside the long drum 3 form a stable circulation.

[0047] Then, the fertilizer granulator is controlled to transport granular fertilizer from the feed pipe 4 into the short drum 2, allowing the granular fertilizer to enter the long drum 3 along the inner wall of the conical short drum 2, and gather at the bottom of the long drum 3. The granular fertilizer is then transported to the left by the continuously clockwise rotating long drum 3 and six spiral blades 6. The granular fertilizer at the bottom of the long drum 3 will be continuously carried away and separated by the six spiral blades 6.

[0048] As the granular fertilizer is carried by the spiral blades 6 through the right side of the long drum 3, the continuously flowing hot air acts on the granular fertilizer, drying it with the high-temperature airflow. After drying, the granular fertilizer still carries heat. When the granular fertilizer carrying heat passes through the right side of the long drum 3 and arrives at the left side, the continuously flowing cold air acts on the granular fertilizer carrying heat, cooling it with the low-temperature airflow. Thus, by setting six spiral blades 6 on the inner wall of the long drum 3, not only can the conveying speed of the granular fertilizer be increased, but the granular fertilizer at the bottom of the long drum 3 can also be circulated and tumbled, ensuring that all the granular fertilizer is dried and cooled, thus guaranteeing the quality of all the granular fertilizer.

[0049] When the six spiral blades 6 rotate, they will drive the ring 501 and the six arched plates 502 to rotate clockwise together. When the cooled granular fertilizer is conveyed into the short drum 2 on the left, the granular fertilizer is gathered between the arched plates 502 by the continuously rotating clockwise arched plates 502, so that the granular fertilizer can completely enter the discharge pipe 5 and be discharged from the discharge pipe 5 to the next process. There is no need for manual cleaning of the short drum 2 on the left, saving a lot of manpower.

[0050] It should be noted that by setting filter screens 9 on both sides of the cylinder 8, the problem of granular fertilizer being blown into the cylinder 8 by cold or hot airflow can be avoided.

[0051] After the long drum 3 stops working, some granular fertilizer remains inside. It is difficult to clean this granular fertilizer manually. Therefore, when the fertilizer granulator stops feeding the long drum 3 and most of the granular fertilizer is discharged from the discharge pipe 5, the operator stops the cold air blower while the hot air blower continues to operate. The output shaft of the servo motor 102 continues to drive the connected components to rotate. The airflow continuously blown by the hot air blower removes the remaining granular fertilizer inside the long drum 3. However, because the long drum 3 is long and large, the airflow from the hot air blower can only reach the middle of the long drum 3, making it difficult to remove the remaining granular fertilizer on the left side of the long drum 3. At this time, the telescopic parts of the three electric push rods 405 are pushed out, which drives the slip ring 402, folded canvas 404, slider 406, connecting rod 407 and guide plate 408 to move to the right together. This forces the folded canvas 404 on the left side of the slip ring 402 to stretch and the folded canvas 404 on the right side to compress. This allows the guide plate 408 to move from the middle of the cylinder 8 to the right side of the cylinder 8. The guide plate 408 blocks the right end of the cylinder 8, so that the hot air blown out by the hot air blower can only flow to the left from the outside of the cylinder 8. Because the space that can flow is reduced, while the continuously blown air remains unchanged, the flow velocity on the outside of the cylinder 8 will increase, which improves the effect of the hot air blower on removing the granular fertilizer remaining inside the long drum 3.

[0052] At the same time, an external blower is controlled to blow air into the exhaust pipe 304, protective cover 303, circular pipe 7 and cylinder 8. Because the right end of cylinder 8 is blocked, the airflow blown into cylinder 8 will be blown out from the left end of cylinder 8, further strengthening the airflow flowing to the left in the long drum 3, ensuring that the granular fertilizer remaining on the left side of the long drum 3 will be blown away by the continuously flowing airflow.

[0053] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A low-temperature, high-volume organic compound fertilizer drying and cooling device, comprising a base (1), a short drum (2), a long drum (3), an inlet pipe (4), and a discharge pipe (5); a short drum (2) is fixedly connected to each base (1); a long drum (3) is rotatably connected between two short drums (2); an air inlet pipe (2001) is connected to each short drum (2); an inlet pipe (4) is connected to one side of the short drum (2); and a discharge pipe (5) is connected to the other side of the short drum (2); characterized in that: It also includes a power assembly, a driven assembly, a spiral blade (6), a circular tube (7), a cylinder (8), a filter screen (9), and an air extraction assembly; the power assembly is connected to the outside of the long drum (3); the driven assembly for assisting the rotation of the long drum (3) is connected to the outside of the long drum (3); several spiral blades (6) arranged in a ring array are fixed inside the long drum (3); several circular tubes (7) are provided on the long drum (3); all the circular tubes (7) and all the spiral blades (6) are staggered; a cylinder (8) is connected to all the circular tubes (7); a filter screen (9) is provided at each end of the cylinder (8); an air extraction assembly for absorbing gas is connected to the outside of the long drum (3); the power assembly is used to drive the long drum (3), spiral blades (6), circular tubes (7), cylinder (8), and filter screen (9) to rotate together.

2. The low-temperature, high-volume organic compound fertilizer drying and cooling device according to claim 1, characterized in that: The power assembly includes a mounting bracket (101), a servo motor (102), a support plate (103), a round shaft (104), a spur gear (105), and a gear ring (106); the mounting bracket (101) is provided below the long roller (3); the servo motor (102) is fixedly connected to the mounting bracket (101); two support plates (103) are fixedly connected to the mounting bracket (101), and the two support plates (103) are located to the left of the servo motor (102); the round shaft (104) is rotatably connected to the two support plates (103); the output shaft of the servo motor (102) is fixedly connected to the round shaft (104); the spur gear (105) is fixedly connected to the round shaft (104); the gear ring (106) is fixedly connected to the outer surface of the long roller (3); the gear ring (106) meshes with the spur gear (105).

3. The low-temperature, high-volume organic compound fertilizer drying and cooling device according to claim 1, characterized in that: The driven assembly includes a mounting plate (201), a driven wheel (202), and a limiting ring (203); two mounting plates (201) are provided below the long roller (3), and the two mounting plates (201) are respectively located on one side closer to the two short rollers (2); two driven wheels (202) are fixedly connected to each mounting plate (201); two limiting rings (203) are fixedly connected to the outer surface of the long roller (3), and the two limiting rings (203) are respectively located between two adjacent driven wheels (202).

4. The low-temperature, high-volume organic compound fertilizer drying and cooling device according to claim 1, characterized in that: The air extraction assembly includes a second mounting bracket (301), a connecting bracket (302), a protective cover (303), and an air extraction pipe (304); a second mounting bracket (301) is provided at the lower front and lower rear of the long roller (3); a connecting bracket (302) is fixedly connected to each second mounting bracket (301); a protective cover (303) is fixedly connected to both connecting brackets (302); the protective cover (303) is rotatably connected to the middle of the outer surface of the long roller (3); a number of air extraction pipes (304) arranged in a ring array are provided on the left side of the protective cover (303), and the air extraction pipes (304), the protective cover (303), the round pipe (7), and the round cylinder (8) are connected.

5. A low-temperature, high-volume organic compound fertilizer drying and cooling device according to claim 4, characterized in that: It also includes a circular frame (401) rotatably connected to the protective cover (303); a slip ring (402) is slidably connected to the circular frame (401); a retaining ring (403) is fixedly connected to the left and right sides of the circular frame (401); a folded canvas (404) is fixedly connected to each side of the slip ring (402); each of the two folded canvases (404) is fixedly connected to a retaining ring (403); several electric push rods (405) arranged in a circular array are fixedly connected to the left side of the outer surface of the protective cover (303); the extension and retraction of each electric push rod (405) Each part is fixedly connected to a slider (406); the slip ring (402) has an annular groove (40201); all sliders (406) are slidably disposed in the annular groove (40201); several connecting rods (407) are fixedly connected to the inner ring surface of the slip ring (402); several connecting rods (407) all pass through the long roller (3), and all connecting rods (407) are located in a circular tube (7); all connecting rods (407) are fixedly connected to a guide plate (408); the guide plate (408) is slidably connected to the inner ring surface of the cylinder (8).

6. A low-temperature, high-volume organic compound fertilizer drying and cooling device according to claim 5, characterized in that: It also includes a ring (501) rotatably connected to the inside of the left short roller (2); several arched plates (502) arranged in a ring array are fixed on the ring (501), and each of the arched plates (502) is in contact with a spiral blade (6).

7. A low-temperature, high-volume organic compound fertilizer drying and cooling device according to claim 6, characterized in that: The inner side of the short roller (2) on the right is truncated cone-shaped.

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