Anti-caking feeding device and method for compound fertilizer

Abstract

The invention discloses an anti-caking feeding device and method for compound fertilizers, and relates to the technical field of compound fertilizers, the anti-caking feeding device is characterized in that a material grinding assembly used for grinding the compound fertilizers is mounted in a discharging bin, a rubber frame plate is arranged in the middle of the material grinding assembly, and the compound fertilizers pass through a gap between the material grinding assembly and the rubber frame plate; by arranging the rubber frame plate, the material grinding belt and the hot air assembly, the variable frequency motor drives the material grinding belt and the fan blades at the same time, the material grinding device can be used for grinding materials in two forms, the material grinding efficiency is improved, and the material grinding efficiency is improved. And energy coupling utilization of crushing and drying is achieved, so that energy is efficiently utilized while different working requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of compound fertilizers, in particular to an anti-caking feeding device and method for compound fertilizers. Background Art

[0002] The anti-caking feeding device of compound fertilizer is mainly used to prevent the fertilizer from agglomerating due to factors such as moisture or pressure during storage or transportation, which affects the fluidity and use effect of the fertilizer. Before feeding, the equipment is usually required to discharge the compound fertilizer. The existing anti-caking feeding device of compound fertilizer has the following problems during the process of discharging compound fertilizer: Traditional anti-caking devices mostly use a single crushing or heating method, which has low crushing efficiency and uneven heat distribution. Energy consumption is concentrated in a single functional module, such as an independent heating system or crushing system, and the energy coupling utilization of "crushing + drying" is not achieved, resulting in increased energy consumption and higher usage costs.

[0003] Existing equipment mostly uses fixed screen screening or single roller rolling, relying only on mechanical force to break up lumps. It is difficult to effectively break up high-humidity and highly sticky lumps, such as compound fertilizers containing urea and potassium dihydrogen phosphate, and large particles of lumps are easily left and enter the feeding process. To address the above problems, the inventors proposed an anti-lumping feeding device and method for compound fertilizers to solve the above problems. Summary of the Invention

[0004] In order to solve the problem of single crushing or heating mode, the purpose of the present invention is to provide an anti-caking feeding device and method for compound fertilizer.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: an anti-caking feeding device for compound fertilizer, comprising a bracket and a feeding assembly, wherein the feeding assembly is mounted on the bracket, the feeding assembly comprising a first motor, a feeding belt and a roller, the first motor being mounted on the outer wall of the bracket, the two rollers being rotatably connected to the two ends of the bracket respectively, the output shaft of the first motor being connected to one of the rollers, a feeding bin for feeding compound fertilizer is mounted on the top outer wall of the bracket, and a discharge assembly for intermittently feeding compound fertilizer is mounted on the top of the feeding bin; An abrasive assembly for grinding compound fertilizer is installed inside the lower silo, and a rubber frame plate is provided in the middle of the abrasive assembly. The compound fertilizer passes through the gap between the abrasive assembly and the rubber frame plate and flows to the bottom port of the lower silo; The abrasive component and the rubber frame plate are frictionally matched to abrade the agglomerated compound fertilizer, and friction heat is generated during the abrasion process; An adjusting component for adjusting the abrasive component is installed on the lower hopper. The adjusting component is used to adjust the gap between the abrasive component and the rubber frame plate to adapt to different working requirements.

[0006] Preferably, the discharge assembly includes a second motor and an impeller, the second motor is mounted on the outer wall of the lower hopper, and several impellers are mounted on the outer wall of the output shaft of the second motor, and the several impellers are equally spaced on the outer wall of the output shaft.

[0007] Preferably, the abrasive assembly includes a variable frequency motor and an abrasive belt, the variable frequency motor is installed on the outer wall of the lower material bin, two abrasive belts are provided, and rotating drums are respectively provided on the inner walls of the top and bottom of the abrasive belts, and the two ends of the rotating drums are rotatably connected to the outer wall of the lower material bin; The rotating shafts of the two rotating drums are connected with a transmission belt, and the output shaft of the variable frequency motor is connected to one of the rotating drums.

[0008] Preferably, a sliding groove is provided on the lower hopper, and a slider is rotatably connected to the outer wall of the rotating drum shaft at the top, and the slider is slidably connected to the inner wall of the sliding groove. A spring is installed on the inner wall of the sliding groove, and the spring is at the bottom of the slider.

[0009] Preferably, a brush is installed inside the lower material bin, and the brush is close to the outer wall of the abrasive belt.

[0010] Preferably, the adjusting component includes an adjusting roller and a bidirectional screw, a movable groove is provided on the lower hopper, the rotating shaft of the adjusting roller is slidably connected to the movable groove, a connecting block is rotatably connected to the outer wall of the rotating shaft of the adjusting roller, the bidirectional screw passes through the connecting block and is threadedly connected, and a sealing plate is connected to the rotating shaft of the adjusting roller.

[0011] Preferably, the top of the rubber frame plate is set as a triangular top surface, and the middle of the rubber frame plate is provided with a groove.

[0012] Preferably, an air flow channel is provided on the top of the lower silo, and a plurality of air jets are provided on the top of the lower silo for communicating with the air flow channel, and the air jets are inclined toward the interior of the lower silo; The bottom inner wall of the lower material bin and the outer wall of the abrasive belt form an air flow channel. A hot air component for blowing hot air is installed at the bottom of the lower material bin, and the output shaft of the variable frequency motor drives the hot air component.

[0013] Preferably, the hot air assembly includes a tube body and fan blades, the output shaft of the variable frequency motor extends to the interior of the tube body, a heating tube is installed inside the tube body, and the heating tube is in the shape of a spiral disk; The output shaft of the variable frequency motor passes through the heating tube, a fan blade is installed on the output shaft of the variable frequency motor, and a pipeline is connected between the outer wall of the tube body and the bottom of the lower silo; A temperature control component is installed on the outer wall of the tube body, and the temperature control component integrates a temperature sensor and a temperature controller.

[0014] A method for a compound fertilizer anti-caking feeding device, comprising the following steps: Step 1: Run the abrasive assembly, discharge assembly and hot air assembly to preheat the equipment; Step 2: Adjust the abrasive component by adjusting the gap between the abrasive component and the rubber frame plate to adapt to the abrasive requirements of different compound fertilizers; Step 3: Pour the compound fertilizer into the lower hopper from the top port, and the discharge assembly discharges the compound fertilizer intermittently; In step 4, the friction between the abrasive component and the rubber frame generates heat to dry the compound fertilizer. The hot air component guides the heat to the top inner side of the lower hopper through the air flow channel, air flow channel and air jet port to preheat and dry the added compound fertilizer.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts the configuration of a rubber frame, an abrasive belt, and a hot air component. A variable frequency motor drives the abrasive belt and fan blades simultaneously, and can be used for abrading materials in two forms. For high-humidity agglomerates: start the high-speed mode, the frictional heat generated by the rubber frame and the abrasive belt + the strong hot air circulation of the hot air component quickly dries; for low-humidity loose materials: switch to the low-speed mode, relying only on the frictional heat generated by the rubber frame and the abrasive belt to maintain micro-drying, reducing energy consumption, thereby realizing the energy coupling utilization of "crushing + drying", thereby meeting different work requirements while making efficient use of energy.

[0016] 2. The present invention provides a lower hopper, and a hot air flow is introduced into the interior of the lower hopper through a pipeline. The internal air flow of the lower hopper flows from bottom to top. First, the heat inside the lower hopper is allowed to flow continuously, and the compound fertilizer is retained from top to bottom, so that the compound fertilizer is heated evenly. Second, the air flow prevents the heat from accumulating inside the lower hopper, thereby affecting the service life of the internal structure of the lower hopper. The flowing hot air flow is discharged through the air jet port to utilize the waste heat, which has the effect of preheating the newly added compound fertilizer and reducing the adhesion of the compound fertilizer caused by moisture.

[0017] 3. The present invention rotates the bidirectional screw through the setting of the adjustment component. The bidirectional thread set on the bidirectional screw drives the two connecting blocks in reverse, so that the two connecting blocks are moved closer to or away from each other, thereby driving the adjustment roller to adjust the tension of the abrasive belt, thereby changing the gap between the abrasive belt and the rubber frame plate. Different gaps can adapt to different abrasive requirements, improve the adaptability of the abrasive, and avoid the problem of a single method in the process of grinding compound fertilizers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 Schematic diagram of the bracket and feeding assembly of the present invention.

[0021] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0022] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point A in the middle.

[0023] Figure 5 Schematic diagram of the adjustment component of the present invention.

[0024] Figure 6 Schematic diagram of the abrasive component of the present invention.

[0025] Figure 7 Schematic diagram of the structure of the abrasive belt and the regulating roller of the present invention.

[0026] Figure 8 Schematic diagram of the abrasive belt structure of the present invention.

[0027] Figure 9 For the present invention Figure 8 Schematic diagram of the structure at point B.

[0028] Figure 10 Schematic diagram of the impeller of the present invention.

[0029] Figure 11 It is a schematic diagram of the hot air component and the discharge bin of the present invention.

[0030] Figure 12 Schematic diagram of the hot air assembly of the present invention.

[0031] In the figure: 1. bracket; 2. feeding assembly; 201. first motor; 202. feeding belt; 203. roller; 3. unloading bin; 301. sliding groove; 302. air flow channel; 303. air jet; 4. discharging assembly; 401. second motor; 402. impeller; 5. adjusting assembly; 501. adjusting roller; 502. sealing plate; 503. connecting block; 504. bidirectional screw; 6. abrasive assembly; 601. frequency conversion motor; 602. rotating drum; 603. transmission belt; 604. abrasive belt; 7. spring; 8. brush; 9. rubber frame; 901. groove; 10. hot air assembly; 1001. tube body; 1002. fan blade; 1003. heating tube; 1004. temperature control assembly; 1005. pipeline. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1 like Figures 1-12 As shown, the present invention provides an anti-caking feeding device for compound fertilizer, comprising a bracket 1 and a feeding assembly 2, the feeding assembly 2 being mounted on the bracket 1, the feeding assembly 2 comprising a first motor 201, a feeding belt 202 and a roller 203, the first motor 201 being mounted on the outer wall of the bracket 1, the two rollers 203 being rotatably connected to the two ends of the bracket 1, the output shaft of the first motor 201 being connected to one of the rollers 203, a discharge bin 3 for discharging compound fertilizer being mounted on the top outer wall of the bracket 1, and a discharge assembly 4 for intermittently discharging compound fertilizer being mounted on the top of the discharge bin 3; An abrasive assembly 6 for grinding compound fertilizer is installed inside the lower silo 3. A rubber frame plate 9 is provided in the middle of the abrasive assembly 6. The compound fertilizer passes through the gap between the abrasive assembly 6 and the rubber frame plate 9 and flows to the bottom port of the lower silo 3. The abrasive component 6 and the rubber frame plate 9 are frictionally matched to grind the agglomerated compound fertilizer, and friction heat is generated during the grinding process; An adjusting assembly 5 for adjusting the abrasive assembly 6 is installed on the lower hopper 3. The adjusting assembly 5 is used to adjust the gap between the abrasive assembly 6 and the rubber frame plate 9 to adapt to different working requirements.

[0034] Figure 10As shown, the discharge assembly 4 includes a second motor 401 and an impeller 402. The second motor 401 is mounted on the outer wall of the discharge bin 3. A plurality of impellers 402 are mounted on the outer wall of the output shaft of the second motor 401. The impellers 402 are evenly spaced on the outer wall of the output shaft. The purpose of this arrangement is that the output shaft of the second motor 401 drives the impellers 402 to rotate. Several impellers 402 are evenly spaced on the outer wall of the output shaft, ensuring that the same amount of compound fertilizer is discharged each time. When the second motor 401 drives the impellers 402 to rotate, the compound fertilizer is discharged intermittently to prevent material accumulation and blockage. The volume between the blades of the impeller 402 is fixed during rotation. By controlling the motor speed (e.g., adjustable from 5-20 rpm), the discharge rate per unit time can be precisely controlled (flow rate fluctuation ≤ 5%). For example, if the subsequent abrasive assembly 6 has a processing capacity of 100 kg / h, the impeller 402 speed can be adjusted to ensure a stable discharge rate, avoiding overloading the abrasive assembly due to excessive discharge or impacting production efficiency due to excessive discharge. In scenarios requiring batch processing (such as when mixing fertilizers with different components), intermittent discharge can be achieved by starting and stopping the second motor 401 to implement a "dose-pause-re-dose" cycle, ensuring precise control of the material delivery rhythm during formula production.

[0035] Figure 6 As shown, the abrasive assembly 6 includes a variable frequency motor 601 and an abrasive belt 604. The variable frequency motor 601 is installed on the outer wall of the lower material bin 3. Two abrasive belts 604 are provided. Rotating drums 602 are respectively provided on the inner walls of the top and bottom of the abrasive belts 604. The two ends of the rotating drum 602 are rotatably connected to the outer wall of the lower material bin 3. The rotating shafts of the two rotating drums 602 are connected to a transmission belt 603 , and the output shaft of the variable frequency motor 601 is connected to one of the rotating drums 602 ; The purpose of this arrangement is that the output shaft of the variable frequency motor 601 drives the rotating drum 602, the transmission belt 603 and the abrasive belt 604 to rotate. The arrangement of the transmission belt 603 allows the two abrasive belts 604 to rotate simultaneously. During the rotation process, the abrasive belt 604 cooperates with the rubber frame plate 9 to grind the compound fertilizer passing through.

[0036] Figure 3 and Figure 4 As shown, a sliding groove 301 is provided on the lower hopper 3, and a slider is rotatably connected to the outer wall of the rotating shaft of the rotating drum 602 at the top. The slider is slidably connected to the inner wall of the sliding groove 301. A spring 7 is installed on the inner wall of the sliding groove 301, and the spring 7 is at the bottom of the slider; The purpose of such arrangement is that when the abrasive belt 604 is tensioned and adjusted by the adjusting assembly 5 , the rotating shaft of the rotating drum 602 cooperates with the slider to slide on the sliding groove 301 and squeezes the spring 7 to adapt to the adjustment.

[0037] Figure 4 As shown, a brush 8 is installed inside the lower hopper 3, and the brush 8 is close to the outer wall of the abrasive belt 604. The purpose of this arrangement is that when the abrasive belt 604 is close to the brush 8, the abrasive belt 604 rubs against each other to clean the abrasive belt 604.

[0038] Figure 3 and Figure 5 As shown, the adjustment assembly 5 includes an adjustment roller 501 and a bidirectional screw 504. A movable groove is provided on the lower hopper 3. The rotating shaft of the adjustment roller 501 is slidably connected to the movable groove. A connecting block 503 is rotatably connected to the outer wall of the rotating shaft of the adjustment roller 501. The bidirectional screw 504 passes through the connecting block 503 and is threadedly connected. A sealing plate 502 is connected to the rotating shaft of the adjustment roller 501 for keeping the movable groove closed. The purpose of this arrangement is to rotate the bidirectional screw 504 and the bidirectional threads set on the bidirectional screw 504 to drive the two connecting blocks 503 in reverse, so that the two connecting blocks 503 move closer to or away from each other, thereby driving the adjusting roller 501 to adjust the tension of the abrasive belt 604.

[0039] Figure 8 and Figure 9 As shown, the top of the rubber frame plate 9 is set to a triangular top surface, and a groove 901 is set in the middle of the rubber frame plate 9. The purpose of this setting is that the triangular top surface of the rubber frame plate 9 is set to facilitate the flow of the compound fertilizer, and the groove 901 is set to allow the compound fertilizer to stay for a short time. During the rotation of the abrasive belt 604, the heated compound fertilizer is abraded for a certain period of time, thereby extending the abrasive time and improving the abrasive effect.

[0040] Figure 10 As shown, an air flow channel 302 is provided on the top of the lower silo 3, and a plurality of air jets 303 are provided on the top of the lower silo 3 for communicating with the air flow channel 302. The air jets 303 are inclined toward the interior of the lower silo 3; The bottom inner wall of the lower hopper 3 and the outer wall of the abrasive belt 604 form an air flow channel. A hot air component 10 for blowing hot air is installed at the bottom of the lower hopper 3. The output shaft of the frequency conversion motor 601 drives the hot air component 10. The setting of the hot air component 10 drives the internal air flow of the lower hopper 3 to flow from bottom to top. First, the heat inside the lower hopper 3 is allowed to flow continuously, and the compound fertilizer is left from top to bottom, so that the compound fertilizer is heated evenly. Second, it prevents heat accumulation inside the lower hopper 3, thereby affecting the service life of the internal structure of the lower hopper 3. The flowing hot air flow is discharged through the air jet 303, and the waste heat is utilized, which has the effect of preheating the newly added compound fertilizer and reducing the adhesion of the compound fertilizer caused by moisture.

[0041] Example 2 like Figure 11-12 As shown, the hot air assembly 10 includes a tube body 1001 and fan blades 1002. The output shaft of the variable frequency motor 601 extends into the interior of the tube body 1001. A heating tube 1003 is installed inside the tube body 1001. The heating tube 1003 is in the shape of a spiral disk. The output shaft of the variable frequency motor 601 passes through the heating tube 1003. The fan blade 1002 is installed on the output shaft of the variable frequency motor 601. The outer wall of the tube body 1001 is connected to the bottom of the lower hopper 3 through a pipe 1005. A temperature control component 1004 is installed on the outer wall of the tube body 1001. The temperature control component 1004 is integrated with a temperature sensor and a temperature controller. The purpose of this setting is that the output shaft of the variable frequency motor 601 drives the fan blades 1002 to rotate, introduces the airflow, and the heating tube 1003 provides a heat source, which is converted into hot airflow, and the airflow is introduced into the interior of the lower hopper 3 through the pipe 1005.

[0042] Example 3 like Figures 1-12 As shown, a method for a compound fertilizer anti-caking feeding device includes the following steps: Step 1: operate the abrasive assembly 6, the discharge assembly 4 and the hot air assembly 10 to preheat the equipment; Step 2: Adjust the abrasive component 6 through the adjustment component 5. The adjustment component 5 is used to adjust the gap between the abrasive component 6 and the rubber frame plate 9 to adapt to the abrasive requirements of different compound fertilizers; Step 3: Pour the compound fertilizer into the lower hopper 3 from the top port, and the discharge assembly 4 discharges the compound fertilizer intermittently; In step 4, the abrasive component 6 and the rubber frame plate 9 generate heat by friction to dry the compound fertilizer. The hot air component 10 guides the heat to the top inner side of the lower hopper 3 through the air flow channel, the air flow channel 302 and the air jet port 303 to preheat and dry the added compound fertilizer.

[0043] Working principle: The abrasive assembly 6, the discharge assembly 4 and the hot air assembly 10 are operated to preheat the equipment, and the outer wall of the abrasive belt 604 and the rubber frame plate 9 are preheated, so as to facilitate the grinding and drying of the compound fertilizer at the same time. After the preheating is completed, the operating power of the heating tube 1003 is reduced and adjusted according to the subsequent use demand of the compound fertilizer; The compound fertilizer is poured into the discharge bin 3 from the top port, and the output shaft of the second motor 401 drives the impeller 402 to rotate. The impellers 402 are evenly spaced on the outer wall of the output shaft so that the amount of compound fertilizer discharged each time is the same. When the second motor 401 drives the impeller 402 to rotate, the compound fertilizer is discharged intermittently to prevent material accumulation and blockage. The compound fertilizer is abraded between the abrasive belt 604 and the rubber frame 9. The output shaft of the variable frequency motor 601 drives the rotating drum 602, the transmission belt 603 and the abrasive belt 604 to rotate. The setting of the transmission belt 603 allows the two abrasive belts 604 to rotate simultaneously. During the rotation process, the abrasive belt 604 cooperates with the rubber frame 9 to grind the compound fertilizer passing through. The bidirectional screw 504 is rotated, and the bidirectional threads provided on the bidirectional screw 504 drive the two connecting blocks 503 in opposite directions, so that the two connecting blocks 503 are moved closer to or away from each other, thereby driving the adjusting roller 501 to adjust the tension of the abrasive belt 604, thereby changing the gap between the abrasive belt 604 and the rubber frame plate 9. Different gaps can adapt to different abrasive requirements and improve the adaptability of the abrasive. At the same time, the abrasive belt 604 and the rubber frame plate 9 generate heat in the process of rubbing and crushing the composite fertilizer, which is beneficial to drying the composite fertilizer, thereby reducing the adhesion of the composite fertilizer due to moisture. The triangular top surface of the rubber frame plate 9 is provided to facilitate the flow of the compound fertilizer, and the groove 901 is provided to allow the compound fertilizer to stay briefly. During the rotation of the abrasive belt 604, the compound fertilizer that has stayed there is abraded for a certain period of time, thereby extending the abrasive time, improving the abrasive effect, and extending the drying time. The output shaft of the variable frequency motor 601 drives the fan blades 1002 to rotate, introducing the airflow. The heating tube 1003 provides a heat source, which is converted into a hot airflow. The airflow is introduced into the interior of the lower hopper 3 through the pipe 1005. The internal airflow of the lower hopper 3 flows from bottom to top. Firstly, the heat inside the lower hopper 3 is continuously flowed, and the compound fertilizer is retained from top to bottom, so that the compound fertilizer is evenly heated. Secondly, the heat accumulation inside the lower hopper 3 is prevented, thereby affecting the service life of the internal structure of the lower hopper 3. The flowing hot airflow is discharged through the air jet 303, and the waste heat is utilized to preheat the newly added compound fertilizer and reduce the adhesion of the compound fertilizer caused by moisture. Those skilled in the art should note that when implementing the technical solution of the present invention, the variable frequency motor 601 drives the abrasive belt 604 to rotate via the transmission belt 603. The speed range needs to cover different crushing requirements, such as an adjustable range of 50 to 200 rpm. The output shaft of the variable frequency motor 601 extends into the tube 1001 and directly drives the fan blades 1002 to rotate. The wind speed is proportional to the motor speed. The higher the speed, the greater the air volume. The variable frequency motor 601 operates in three stages: Preheating stage: variable frequency motor 601, 150rpm, heating tube 1003 full power, quickly heating to 50℃; Normal operation stage: variable frequency motor 601, 100rpm, heating tube 1003 is adjusted to maintain the temperature at 50±2℃; Standby stage: variable frequency motor 601, 50rpm, heating tube 1003 low power insulation, energy consumption reduced by 40%; The abrasive belt 604 is made of wear-resistant rubber + elastic coating such as nitrile rubber, with a friction coefficient of 0.3-0.5. The rubber frame plate 9 is made of silicone rubber with a Shore hardness of 60-80A. By controlling the friction coefficient and contact area between the two, the heat generation per unit time is limited to 50-100W / kg of material, avoiding excessive heat generation that may cause fertilizer decomposition.

[0044] When the adjustment component 5 reduces the abrasive gap, the extrusion force on the material increases, the friction travel increases, and the heat generation increases. For every 1mm reduction in the gap, heat generation increases by approximately 15%. Conversely, increasing the gap reduces heat generation. By monitoring the temperature in the feed bin in real time, a temperature control component 1004 can be added. This component integrates a temperature sensor and a thermostat, which adjust the gap in a coordinated manner to achieve dynamic matching of frictional heat generation. For example, for high-humidity materials, a smaller gap increases heat generation, while for low-humidity materials, a larger gap reduces heat generation.

[0045] The variable frequency motor 601 drives the abrasive belt and the fan blades 1002 simultaneously, and can be used to abrade materials in two forms.

[0046] High humidity agglomeration: Start the high speed mode, the friction between the rubber frame plate 9 and the abrasive belt 604 generates heat, and the strong hot air circulation of the hot air component 10 quickly dries; Low-humidity loose materials: Switch to low-speed mode, relying only on the frictional heat generated by the rubber frame plate 9 and the abrasive belt 604 to maintain micro-drying, reducing energy consumption, thereby adapting to different work requirements while making efficient use of energy. At the same time, further anti-caking operations are performed during this process. Compared with the existing technology, the present invention couples the use of heat and abrasive to achieve the effect of maximizing energy utilization, thereby saving energy and being efficient. Finally, the dried and crushed compound fertilizer falls toward the feeding belt 202 and is fed through the feeding belt 202 .

[0047] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0048] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A compound fertilizer anti-caking feeding device, comprising a bracket (1) and a feeding assembly (2), wherein the feeding assembly (2) is mounted on the bracket (1), the feeding assembly (2) comprising a first motor (201), a feeding belt (202) and a roller (203), the first motor (201) being mounted on the outer wall of the bracket (1), the two rollers (203) being rotatably connected to the two ends of the bracket (1), the output shaft of the first motor (201) being connected to one of the rollers (203), and characterized in that: A discharge bin (3) for discharging compound fertilizer is installed on the top outer wall of the bracket (1), and a discharge assembly (4) for intermittently discharging compound fertilizer is installed on the top of the discharge bin (3); An abrasive component (6) for grinding compound fertilizer is installed inside the lower silo (3), and a rubber frame plate (9) is provided in the middle of the abrasive component (6). The compound fertilizer passes through the gap between the abrasive component (6) and the rubber frame plate (9) and flows to the bottom port of the lower silo (3); The abrasive component (6) and the rubber frame plate (9) are frictionally matched to abrade the agglomerated compound fertilizer, and friction heat is generated during the abrasion process; An adjusting assembly (5) for adjusting the abrasive assembly (6) is installed on the lower hopper (3). The adjusting assembly (5) is used to adjust the gap between the abrasive assembly (6) and the rubber frame plate (9) to adapt to different working requirements.

2. The anti-caking feeding device for compound fertilizer according to claim 1, characterized in that: The discharge assembly (4) comprises a second motor (401) and an impeller (402), wherein the second motor (401) is mounted on the outer wall of the discharge bin (3), and a plurality of impellers (402) are mounted on the outer wall of the output shaft of the second motor (401), and the plurality of impellers (402) are arranged in equal parts on the outer wall of the output shaft.

3. The anti-caking feeding device for compound fertilizer according to claim 1, characterized in that: The abrasive assembly (6) comprises a variable frequency motor (601) and an abrasive belt (604), wherein the variable frequency motor (601) is mounted on the outer wall of the lower material bin (3), and two abrasive belts (604) are provided. Rotating drums (602) are respectively provided on the inner walls of the top and bottom of the abrasive belts (604), and both ends of the rotating drums (602) are rotatably connected to the outer wall of the lower material bin (3); The rotating shafts of the two rotating drums (602) are connected to a transmission belt (603), and the output shaft of the variable frequency motor (601) is connected to one of the rotating drums (602).

4. The anti-caking feeding device for compound fertilizer according to claim 3, characterized in that: The lower hopper (3) is provided with a sliding groove (301), and a slider is rotatably connected to the outer wall of the rotating shaft of the rotating drum (602) at the top, and the slider is slidably connected to the inner wall of the sliding groove (301). A spring (7) is installed on the inner wall of the sliding groove (301), and the spring (7) is located at the bottom of the slider.

5. The anti-caking feeding device for compound fertilizer according to claim 4, characterized in that: A brush (8) is installed inside the lower material bin (3), and the brush (8) is close to the outer wall of the abrasive belt (604).

6. The anti-caking feeding device for compound fertilizer according to claim 4, characterized in that: The adjusting assembly (5) comprises an adjusting roller (501) and a bidirectional screw (504); a movable groove is provided on the lower material bin (3); a rotating shaft of the adjusting roller (501) is slidably connected to the movable groove; a connecting block (503) is rotatably connected to the outer wall of the rotating shaft of the adjusting roller (501); the bidirectional screw (504) penetrates the connecting block (503) and is threadedly connected; a sealing plate (502) is connected to the rotating shaft of the adjusting roller (501).

7. The anti-caking feeding device for compound fertilizer according to claim 6, characterized in that: The top of the rubber frame plate (9) is configured as a triangular top surface, and the middle of the rubber frame plate (9) is provided with a groove (901).

8. The anti-caking feeding device for compound fertilizer according to claim 1, characterized in that: An airflow channel (302) is provided on the top of the lower silo (3), and a plurality of air jets (303) are provided on the top of the lower silo (3) for communicating with the airflow channel (302), and the air jets (303) are inclined toward the interior of the lower silo (3); The bottom inner wall of the lower material bin (3) and the outer wall of the abrasive belt (604) form an air flow channel. A hot air component (10) for blowing hot air is installed at the bottom of the lower material bin (3). The output shaft of the variable frequency motor (601) drives the hot air component (10).

9. The anti-caking feeding device for compound fertilizer according to claim 8, characterized in that: The hot air assembly (10) comprises a tube body (1001) and fan blades (1002); the output shaft of the variable frequency motor (601) extends into the interior of the tube body (1001); a heating tube (1003) is installed inside the tube body (1001); the heating tube (1003) is in the shape of a spiral disk; The output shaft of the variable frequency motor (601) passes through a heating tube (1003), a fan blade (1002) is mounted on the output shaft of the variable frequency motor (601), and a pipe (1005) is connected between the outer wall of the tube body (1001) and the bottom of the lower bin (3); A temperature control component (1004) is installed on the outer wall of the tube body (1001), and the temperature control component (1004) is integrated with a temperature sensor and a temperature controller.

10. A method for using the compound fertilizer anti-caking feeding device according to any one of claims 1 to 9, characterized in that: The steps are as follows: Step 1: operating the abrasive component (6), the discharge component (4) and the hot air component (10) to preheat the equipment; Step 2: adjusting the abrasive component (6) through the adjusting component (5), wherein the adjusting component (5) is used to adjust the gap between the abrasive component (6) and the rubber frame plate (9) to adapt to the abrasive requirements of different compound fertilizers; Step 3: pour the compound fertilizer from the top port of the lower hopper (3), and the discharge component (4) discharges it intermittently; In step 4, the abrasive component (6) and the rubber frame plate (9) generate heat by friction to dry the compound fertilizer, and the hot air component (10) guides the heat through the air flow channel, the air flow channel (302) and the air jet port (303) to the top inner side of the lower hopper (3) to preheat and dry the added compound fertilizer.

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