Anti-caking biological fertilizer continuous dryer

Abstract

This utility model discloses a continuous dryer for preventing caking of bio-fertilizer, comprising a support frame, with annular plates fixedly connected to both sides of the top of the support frame. A rotating drum is rotatably connected to the inner walls of the two annular plates via bearings. A fixed plate is rotatably connected to one side of the rotating drum via a sealed bearing. A drying device is disposed above the support frame, the drying device comprising a housing fixedly connected to the outer wall of the fixed plate. This utility model relates to the field of bio-fertilizer technology. This continuous dryer for preventing caking of bio-fertilizer, through the cooperation of the support frame, rotating drum, fixed plate, servo motor, and drying device, can employ drum-type drying, avoiding the phenomenon of fertilizer accumulating in a fixed position for a long time and thus caking. Furthermore, it can utilize a hot air blower to simultaneously dry and agitate the fertilizer, ensuring drying efficiency and improving the quality of the dried fertilizer, thus facilitating operation by workers.

Description

Technical Field

[0001] This utility model relates to the field of bio-fertilizer technology, specifically to a continuous dryer for bio-fertilizer that prevents caking. Background Technology

[0002] In a narrow sense, bio-fertilizers are products that provide specific fertilization effects to crops through the life activities of microorganisms. They are also known as inoculants or microbial fertilizers. They do not contain nutrients themselves and cannot replace chemical fertilizers. In a broad sense, bio-fertilizers are products that contain both the nutrients required by crops and microorganisms. They are a combination of biological, organic, and inorganic components. They can replace chemical fertilizers and provide various nutrients needed for crop growth and development. Continuous bio-fertilizer dryers are key equipment specifically used to remove moisture during the production of bio-fertilizers (such as organic fertilizers, microbial agents, compost, etc.). They are characterized by high efficiency, continuous operation, energy saving, and environmental protection.

[0003] Existing continuous drying machines for bio-fertilizers cannot effectively prevent fertilizer from clumping during use. Once clumps form, the fertilizer is difficult to break up, which may lead to excessively high local concentrations or uneven distribution. This not only reduces fertilizer utilization but may also affect crop growth due to uneven nutrient release. In particular, for bio-fertilizers containing active microorganisms, clumping may cause local hypoxia and death of the microbial community, directly reducing its core functions such as promoting growth and disease resistance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a continuous dryer for bio-fertilizers that prevents caking. This solves the problem that existing continuous dryers for bio-fertilizers cannot effectively prevent caking, and caking makes the fertilizer difficult to break up, potentially leading to excessively high local concentrations or uneven distribution. This not only reduces fertilizer utilization but may also negatively impact crop growth due to uneven nutrient release. This is especially true for bio-fertilizers containing active microorganisms, where caking can cause localized hypoxia and death of the microbial community, directly reducing its core functions such as growth promotion and disease resistance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous dryer for anti-caking bio-fertilizer, comprising a support frame, with annular plates fixedly connected to both sides of the top of the support frame. A rotating drum is rotatably connected to the inner walls of the two annular plates via bearings. A fixed plate is rotatably connected to one side of the rotating drum via a sealed bearing. A drying device is provided above the support frame. The drying device includes: a housing fixedly connected to the outer wall of the fixed plate; a hot air blower fixedly connected to the inner wall of the housing; a filter screen fixedly connected to one side of the housing via bolts; a hollow tube connected to the output end of the hot air blower, with one side of its outer wall fixedly connected to the inner wall of the fixed plate; and a scraper fixedly connected below the hollow tube and in contact with the inner wall of the rotating drum. The hot air blower delivers air filtered by the filter screen into the interior of the hollow tube, and then blows it onto the surface of the fertilizer. When the rotating drum rotates, the scraper agitates the material.

[0006] Preferably, a feed hopper is fixedly connected to the upper inner wall of the fixed plate, a cover plate is rotatably connected to the lower part of the fixed plate via a hinge, a drain pipe is connected to the lower inner wall of the cover plate, and an exhaust pipe is connected to the upper part of the fixed plate.

[0007] Preferably, a temperature sensor is fixedly connected to the top of the inner wall of the fixing plate, the temperature sensor is electrically connected to a controller, and the controller is fixedly connected to the top of the inner wall of the box, and the controller is electrically connected to the hot air blower.

[0008] Preferably, a servo motor is fixedly connected to one side of the outer wall of the rotating drum, a support plate is fixedly connected to the outer wall of the servo motor, and the output end of the servo motor is rotatably connected to the inner wall of the support plate through a bearing. The bottom of the support plate is fixedly connected to the top side of the bracket.

[0009] Preferably, a cleaning device is provided on one side of the servo motor. The cleaning device includes: a water tank, fixedly connected to the lower part of the bracket; a pump body, fixedly connected to the bottom side of the inner wall of the water tank; a water supply pipe, connected to the lower part of one side of the water tank; and a conduit, connected to the output end of the pump body, with its outer wall extending through the lower part of one side of the water tank, its outer wall extending through the upper part of the inner wall of the fixing plate, and its end extending to the upper part of the inside of the rotating drum. The pump body draws water from the water tank and delivers it to the inside of the rotating drum through the conduit.

[0010] Beneficial effects

[0011] This utility model provides a continuous dryer for bio-fertilizer that prevents caking. It offers the following advantages: Through the cooperation of a support frame, rotating drum, fixed plate, servo motor, and drying device, this continuous dryer for bio-fertilizer can employ drum-type drying, preventing fertilizer from accumulating in a fixed position for extended periods and causing caking. Furthermore, it utilizes a hot air blower to simultaneously dry and agitate the fertilizer, ensuring drying efficiency and improving the quality of the dried fertilizer. This also facilitates operation for workers.

[0012] By combining the rotating drum and the cleaning device, the inside of the rotating drum can be cleaned, thereby avoiding cross-contamination of microorganisms between different batches. At the same time, it can also prevent residues from the previous batch from mixing into the new batch, thus ensuring the quality of the product during processing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A sectional view;

[0015] Figure 3 for Figure 2 Another structural diagram of the central fixing plate, cover plate, and hollow tube;

[0016] Figure 4 for Figure 2 A schematic diagram of the structure of the central support, the fixing plate, and the rotating cylinder.

[0017] In the diagram: 1. Support frame; 2. Cleaning device; 21. Water tank; 22. Water supply pipe; 23. Pump body; 24. Pipe; 3. Drying device; 31. Box body; 32. Hot air blower; 33. Filter screen; 34. Hollow tube; 35. Scraper; 4. Cover plate; 5. Feed hopper; 6. Temperature sensor; 7. Controller; 8. Fixing plate; 9. Rotary drum; 10. Annular plate; 11. Support plate; 12. Servo motor; 13. Drain pipe; 14. Exhaust pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0020] Existing continuous drying machines for bio-fertilizers cannot effectively prevent fertilizer from clumping during use. Once clumps form, the fertilizer is difficult to break up, which may lead to excessively high local concentrations or uneven distribution. This not only reduces fertilizer utilization but may also affect crop growth due to uneven nutrient release. In particular, for bio-fertilizers containing active microorganisms, clumping may cause local hypoxia and death of the microbial community, directly reducing its core functions such as promoting growth and disease resistance.

[0021] In view of this, the present invention provides a continuous dryer for bio-fertilizer that prevents caking. Through the cooperation of a support frame, a rotating drum, a fixed plate, a servo motor, and a drying device, a drum-type drying process can be adopted to avoid the phenomenon of fertilizer accumulating in a fixed position for a long time and causing caking. At the same time, a hot air blower can be used to dry the fertilizer and stir it to ensure the drying efficiency of the fertilizer, thereby improving the quality of fertilizer drying and making it more convenient for workers to use.

[0022] Example 1: By Figure 1 , 2 As shown in sections 3 and 4, a continuous dryer for preventing caking of bio-fertilizer includes a support frame 1. Annular plates 10 are fixedly connected to both sides of the top of the support frame 1. A rotating drum 9 is rotatably connected to the inner walls of the two annular plates 10 via bearings. A fixed plate 8 is rotatably connected to one side of the rotating drum 9 via a sealed bearing. A drying device 3 is installed above the support frame 1. The drying device 3 includes: a housing 31, fixedly connected to the outer wall of the fixed plate 8; a hot air blower 32, fixedly connected to the inner wall of the housing 31; a filter screen 33, fixedly connected to one side of the housing 31 via bolts; a hollow tube 34, connected to the output end of the hot air blower 32, with one side of its outer wall fixedly connected to the inner wall of the fixed plate 8; and a scraper 35, fixedly connected to the lower part of the hollow tube 34 and in contact with the inner wall of the rotating drum 9. The hot air blower 32 delivers air filtered by the filter screen 33 into the interior of the hollow tube 34, and then blows it onto the surface of the fertilizer. When the rotating drum 9 rotates, the scraper 35 is used to agitate the material.

[0023] In the specific implementation process, it is worth noting that the model of the hot air blower 32 is not limited, as long as it meets the usage requirements. The mesh size of the filter screen 33 is not limited, as long as it meets the usage requirements. It should be noted that the staff needs to disassemble and clean the filter screen 33 regularly to avoid clogging. The specific cleaning cycle is not limited, and it should be based on the actual usage requirements. The hot air blower 32 has a built-in temperature sensor (such as a thermocouple or PT100) to monitor the temperature of the air outlet or heater in real time and transmit the signal to the microprocessor (PLC or PID controller) of the controller 7. The controller 7 compares the sensor signal with the user-set temperature value, calculates the deviation through the PID algorithm (proportional-integral-derivative), and dynamically adjusts the power of the heating element (such as an SSR solid-state relay or a silicon controlled rectifier) ​​to achieve precise temperature control. The hot air blower 32 can deliver the heated air to the inside of the hollow tube 34, and then the hollow tube 34 blows the hot air onto the surface of the fertilizer to dry the fertilizer.

[0024] Furthermore, a feed hopper 5 is fixedly connected to the upper inner wall of the fixed plate 8, and a cover plate 4 is rotatably connected to the lower part of the fixed plate 8 via a hinge. A drain pipe 13 is connected to the lower inner wall of the cover plate 4, and an exhaust pipe 14 is connected to the upper part of the fixed plate 8.

[0025] In the specific implementation process, it is worth noting that the water after cleaning can be discharged from the drain pipe 13, and the drain pipe 13 should be equipped with a knife gate valve to open and close the drain pipe 13. In addition, this case should be equipped with a lock that works with the cover plate 4 and the fixing plate 8. When drying fertilizer, the lock is used to fix the cover plate 4 and the fixing plate 8. The type of lock and the installation method are not limited, as long as they meet the technical features of this case. A cover door is provided above the feed hopper 5 to open and close the feed hopper 5. The selection and installation method of the cover door are not limited, as long as they meet the technical features of this case.

[0026] Furthermore, a temperature sensor 6 is fixedly connected to the top of the inner wall of the fixed plate 8, the temperature sensor 6 is electrically connected to the controller 7, and the controller 7 is fixedly connected to the top of the inner wall of the housing 31. The controller 7 is electrically connected to the hot air blower 32.

[0027] In the specific implementation process, it is worth noting that there are no restrictions on the models of temperature sensor 6 and controller 7, as long as they meet the usage requirements. Temperature sensor 6 can transmit the monitoring signal to controller 7, and then controller 7 controls the operating status of hot air blower 32.

[0028] Furthermore, a servo motor 12 is fixedly connected to one side of the outer wall of the rotating drum 9, and a support plate 11 is fixedly connected to the outer wall of the servo motor 12. The output end of the servo motor 12 is rotatably connected to the inner wall of the support plate 11 through a bearing, and the bottom of the support plate 11 is fixedly connected to the top side of the bracket 1.

[0029] In the specific implementation process, it is worth noting that there is no restriction on the model of the servo motor 12, as long as it meets the usage requirements. The servo motor 12 can drive the rotating drum 9 to rotate, thereby preventing fertilizer from accumulating in one position.

[0030] Specifically, when using this anti-caking bio-fertilizer continuous dryer, the operator pours the fertilizer into the inside of the rotating drum 9 through the feed hopper 5, then closes the feed hopper 5 again, and then turns on the servo motor 12. The servo motor 12 drives the rotating drum 9 to rotate along the inner wall of the fixed plate 8. At the same time, the hot air fan 32 is turned on, and the hot air fan 32 delivers heated air into the inside of the hollow tube 34 and then blows it onto the surface of the fertilizer. As the rotating drum 9 rotates, the scraper 35 can be used to stir the fertilizer to improve the drying efficiency and quality of the fertilizer. The temperature sensor 6 can monitor the temperature inside the rotating drum 9 in real time. When the temperature is higher or lower than the set range, the controller 7 can be used to adjust the operating status of the hot air fan 32 to ensure that the fertilizer is always within a suitable drying temperature range.

[0031] Example 2: From Figure 1 , 2 As shown in section 3, a cleaning device 2 is provided on one side of the servo motor 12. The cleaning device 2 includes: a water tank 21, which is fixedly connected to the lower part of the bracket 1; a pump body 23, which is fixedly connected to the bottom side of the inner wall of the water tank 21; a water supply pipe 22, which is connected to the lower side of the water tank 21; and a conduit 24, which is connected to the output end of the pump body 23 and penetrates the lower side of the water tank 21 through the lower part of its outer wall. The upper part of the conduit 24 penetrates the upper part of the inner wall of the fixing plate 8 through its outer wall and extends to the upper side of the interior of the rotating drum 9. The pump body 23 draws water out of the water tank 21 and delivers it to the interior of the rotating drum 9 through the conduit 24.

[0032] In the specific implementation process, it is worth noting that the model of the pump body 23 is not limited, as long as it meets the usage requirements. The pump body 23 can draw water out of the water tank 21, then transport it through the conduit 24, and finally spray it into the interior of the rotating drum 9 to clean the interior of the rotating drum 9. The water supply pipe 22 is equipped with a control valve, which can be used to control the opening and closing of the water supply pipe 22 during use.

[0033] Specifically, based on the above embodiment one, when it is necessary to clean the inside of the rotating drum 9, the pump body 23 is turned on, and the pump body 23 can draw out the water source inside the water tank 21, and then transport it through the conduit 24. Finally, it is sprayed from the top of the conduit 24 into the inside of the rotating drum 9. Then, when the rotating drum 9 rotates, the inside of the rotating drum 9 can be cleaned in all directions.

[0034] 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 continuous dryer for bio-fertilizer that prevents caking, comprising a support frame (1), characterized in that: Both sides of the top of the support (1) are fixedly connected to annular plates (10). The inner walls of the two annular plates (10) are rotatably connected to a rotating cylinder (9) via bearings. One side of the rotating cylinder (9) is rotatably connected to a fixed plate (8) via a sealed bearing. A drying device (3) is provided above the support (1). The drying device (3) includes: The housing (31) is fixedly connected to the outer wall of the fixing plate (8); A hot air blower (32) is fixedly connected to the inner wall of the housing (31); The filter screen (33) is fixedly connected to one side of the housing (31) by bolts; Hollow tube (34) is connected to the output end of the hot air blower (32), and one side of its outer wall is fixedly connected to the inner wall of the fixing plate (8); The scraper (35) is fixedly connected to the lower part of the hollow tube (34) and is in contact with the inner wall of the rotating drum (9); The hot air blower (32) delivers the air filtered by the filter screen (33) into the interior of the hollow tube (34) and then blows it onto the surface of the fertilizer. When the rotating drum (9) rotates, the scraper (35) is used to stir the material.

2. The continuous drying machine for anti-caking bio-fertilizer according to claim 1, characterized in that: The upper inner wall of the fixed plate (8) is fixedly connected to a feed hopper (5), the lower part of the fixed plate (8) is connected to a cover plate (4) by a hinge, and the lower inner wall of the cover plate (4) is connected to a drain pipe (13). The upper part of the fixed plate (8) is connected to an exhaust pipe (14).

3. The continuous drying machine for anti-caking bio-fertilizer according to claim 1, characterized in that: A temperature sensor (6) is fixedly connected to the top of the inner wall of the fixed plate (8). The temperature sensor (6) is electrically connected to a controller (7), and the controller (7) is fixedly connected to the top of the inner wall of the box (31). The controller (7) is electrically connected to the hot air blower (32).

4. The continuous drying machine for anti-caking bio-fertilizer according to claim 1, characterized in that: A servo motor (12) is fixedly connected to one side of the outer wall of the rotating drum (9). A support plate (11) is fixedly connected to the outer wall of the servo motor (12). The output end of the servo motor (12) is rotatably connected to the inner wall of the support plate (11) through a bearing. The bottom of the support plate (11) is fixedly connected to the top side of the bracket (1).

5. A continuous dryer for preventing caking of bio-fertilizer according to claim 4, characterized in that: A cleaning device (2) is provided on one side of the servo motor (12), and the cleaning device (2) includes: A water tank (21) is fixedly connected to the lower part of the bracket (1); The pump body (23) is fixedly connected to one side of the bottom inner wall of the water tank (21); A water supply pipe (22) is connected to the lower side of the water tank (21); The conduit (24) is connected to the output end of the pump body (23) and penetrates the lower side of the water tank (21) on the lower side of the outer wall. The upper side of the outer wall of the conduit (24) penetrates the upper side of the inner wall of the fixing plate (8) and the end extends to the upper side of the inside of the rotating drum (9). The pump body (23) draws water from the water tank (21) and delivers it to the inside of the rotating drum (9) through the conduit (24).

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