Material crushing device and method based on water-soluble fertilizer processing

Abstract

The invention discloses a material crushing device and method based on water-soluble fertilizer processing, and relates to the technical field of water-soluble fertilizer crushing. The device comprises a bearing platform arranged on a crushing box, and further comprises a feeding and crushing unit arranged on the upper portion of the bearing platform and internally provided with a driving assembly, a crushing assembly and a material returning assembly; and the dehumidifying and crushing unit is arranged in the crushing box and internally comprises a circulating air blowing assembly, a drying assembly and an impact assembly. The device has the advantages that dead-corner-free preliminary smashing of fertilizer is achieved in a closed space, returning and re-smashing of the fertilizer are achieved in a turning shovel throwing mode, the smashing effect is effectively improved, meanwhile, circulating air flow is used for driving the fertilizer to move at a high speed and be dried and dehumidified, meanwhile, the fertilizer is driven to impact an impact net plate to achieve re-smashing, and the smashing efficiency is improved. The crushing effect is better, and crushed fertilizer particles are uniform and fine and are more attractive.

Description

Technical Field

[0001] The present invention relates to the technical field of water-soluble fertilizer pulverization, and in particular to a material pulverization device and method based on water-soluble fertilizer processing. Background Art

[0002] Water-soluble fertilizer is a kind of fertilizer that can be completely dissolved in water and is made of nitrogen, phosphorus, potassium and other main nutrients supplemented by some trace elements. After the water-soluble fertilizer is processed, it is usually crushed by a material crushing device to reduce the particle size of the fertilizer, which is convenient for the later construction and use of the fertilizer.

[0003] Existing pulverizing devices use a variety of methods to achieve fertilizer pulverization, such as a fertilizer pulverizer with publication number CN109967205A, which includes a pulverizing box with a pulverizing chamber, a coarse crushing mechanism arranged in the pulverizing chamber, and a fine crushing mechanism arranged in the pulverizing chamber and below the coarse crushing mechanism. A feed channel is provided at the top of the pulverizing box, and a discharge channel is provided at the bottom of the pulverizing box. The coarse crushing mechanism includes a rotating shaft and a plurality of crushing blades arranged on the rotating shaft.

[0004] When the existing pulverizing device pulverizes fertilizer, it usually only uses the pulverizing roller contact method to achieve fertilizer pulverization. The pulverized fertilizer falls directly and cannot be pulverized again. In this pulverizing method, a lot of fertilizer cannot fully contact the pulverizing roller during pulverization, and the pulverization is not sufficient;

[0005] For example, the prior art referred to above adopts two grinding rollers arranged in a crushing box to achieve contact crushing during the falling process of the fertilizer. Since the internal space of the crushing box is large, the fertilizer cannot fully and completely contact with the grinding rollers when falling, and there will be many crushing dead angles. In addition, the simple falling contact crushing cannot control the particle size, and the crushed fertilizer particles are of different sizes. At the same time, the dehydration of the fertilizer cannot be achieved, resulting in the crushed fertilizer not only having poor appearance but also easy to stick together, and the crushing effect is poor.

[0006] Therefore, it is urgent to design a material crushing device and method based on water-soluble fertilizer processing to solve the above problems. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a material crushing device and method based on water-soluble fertilizer processing, which solves the problems raised in the above background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A material crushing device based on water-soluble fertilizer processing, including a bearing platform arranged on a crushing box, and also including:

[0009] The feeding and crushing unit is arranged on the upper part of the carrying platform, and is used to realize the feeding and preliminary crushing of the water-soluble fertilizer, and includes a driving component, a crushing component and a returning component, wherein the driving component is used to drive the crushing component and the returning component to operate, and realize the preliminary crushing of the water-soluble fertilizer and the secondary crushing after the returning material;

[0010] The dehumidification and crushing unit is arranged in the crushing box and is used for drying and impact crushing of water-soluble fertilizers. It includes a circulating air blowing component, a drying component and an impact component. The circulating air blowing component is used to realize the movement impact and internal air flow circulation of the fertilizer, the drying component is used to realize the dehumidification and drying of the fertilizer, and the impact component is used to realize the impact crushing of the fertilizer.

[0011] Preferably, the driving assembly includes two servo motors fixedly mounted on the carrying platform, a receiving box is provided on the carrying platform, and a feed hopper is fixedly connected to the receiving box, a driving roller is provided on the driving end of the two servo motors, a shielding cover is fixedly mounted on the carrying platform, and a driven roller is rotatably mounted in the shielding cover, and a control console is provided on the carrying platform.

[0012] Preferably, the crushing assembly includes a driving gear fixedly mounted on the driving roller, a driven gear fixedly mounted on the driven roller, and the driving gear is meshed with the driven gear, and crushing knife rollers for crushing fertilizers are fixedly mounted on both the driving roller and the driven roller, and both crushing knife rollers are located in the receiving box.

[0013] Preferably, the material return assembly includes a turning box fixedly connected to the lower part of the receiving box, a linkage roller is rotatably installed in the turning box, and a transmission belt is sleeved between the linkage roller and the driven roller, a plurality of turning shovel boxes for turning fertilizer are fixedly installed on the linkage roller, and the plurality of turning shovel boxes are all located inside the turning box, and a screening mesh plate for screening fertilizer is fixedly installed in the turning box.

[0014] Preferably, the circulating air blowing assembly includes a drying box fixedly installed in the crushing box, and the drying box is connected to the lower part of the turning box, a discharge box is fixedly installed in the crushing box, and an air blowing mechanism is installed between the drying box and the discharge box.

[0015] Preferably, the air blowing mechanism includes a servo motor fixedly mounted on the outside of the drying box, an induced draft box fixedly mounted in the drying box, an impeller fixedly mounted on the driving end of the servo motor, and the impeller is located in the induced draft box, an air outlet net for air outlet is fixedly mounted in the induced draft box, and a return air pipe for returning air is fixedly connected between the induced draft box and the discharge box.

[0016] Preferably, the drying assembly includes a plurality of heating plates fixedly installed in a drying box, a vibration plate is slidably installed in the drying box, and a plurality of vibration springs are fixedly installed between the vibration plate and the bottom of the drying box, two electromagnetic plates 2 are fixedly installed on the lower part of the vibration plate, and two electromagnetic plates 1 that cooperate with the corresponding electromagnetic plates 2 are fixedly installed on the bottom of the drying box.

[0017] Preferably, the impact assembly includes an impact cone tube fixedly connected between the drying box and the discharge box, a partition baffle is fixedly installed in the discharge box, and an impact mesh plate for impacting and crushing the fertilizer is fixedly installed on the partition baffle, and a discharge mechanism is installed on the discharge box.

[0018] Preferably, the discharging mechanism includes a discharging inclined plate fixedly mounted on the discharging box, a lifting baffle matched with the discharging inclined plate is slidably mounted on the discharging box, a positioning pin is slidably mounted on the lifting baffle, and two positioning holes matched with the positioning pins are opened on the discharging box.

[0019] A material crushing method based on water-soluble fertilizer processing, and a material crushing device for the water-soluble fertilizer processing, comprising the following steps:

[0020] S1. When crushing the water-soluble fertilizer, first put it into the crushing assembly in the feeding crushing unit, start the driving assembly to drive the crushing assembly to work, and perform preliminary crushing on the water-soluble fertilizer;

[0021] S2, the fertilizer after preliminary crushing falls into the return material assembly, and returns to the crushing assembly under the return material action of the return material assembly, so as to realize the secondary crushing of the fertilizer;

[0022] S3. After being crushed, the fertilizer that meets the particle size requirements will fall into the drying component in the dehumidification crushing unit, and under the driving action of the circulating air blowing component, the fertilizer is dried and dehumidified;

[0023] S4, the circulating air blowing component generates circulating wind to drive the fertilizer to move, so that the fertilizer is impacted at high speed under the action of the impact component and is crushed again during the impact process;

[0024] S5. After impact crushing, the fertilizer particles that meet the particle size requirements are directly discharged, and the fertilizer particles that do not meet the particle size requirements are returned to the drying component with the return air component of the circulating air blowing component to be dried and impact crushed again until all the crushing is completed.

[0025] The invention provides a material crushing device and method based on water-soluble fertilizer processing.

[0026] It has the following beneficial effects:

[0027] 1. When the material crushing device is crushing fertilizer, the servo motor 2 drives the two crushing rollers to rotate in opposite directions, which can efficiently cut and crush the water-soluble fertilizer in the process of falling. The two crushing rollers are closely arranged in the receiving box, so that the fertilizer is in direct contact with the crushing rollers without any crushing dead angle, and the crushing range is wider and the efficiency is higher.

[0028] 2. When the material crushing device is crushing the fertilizer, after the preliminary crushing of the fertilizer is completed, the falling fertilizer can be turned over and thrown again between the two upper crushing knife rollers through the turning effect of the rotating multiple turning shovel boxes, so as to realize the secondary crushing of the fertilizer and further improve the crushing efficiency.

[0029] 3. When the material crushing device is crushing the fertilizer, the wind force generated by the rotation of the impeller driven by a servo motor is used, and the vibration of the vibration plate in the drying component and the cooperation of the heating plate can greatly increase the movement rate of the fertilizer, and heat and dehydrate the fertilizer during its movement to avoid the fertilizer from agglomerating after drying.

[0030] 4. When the material crushing device is crushing the fertilizer, the wind force generated by the impeller and the bunching acceleration effect of the impact cone tube are used to drive the fertilizer to move at high speed and impact it into the impact screen in the discharge box, thereby realizing the impact crushing of the fertilizer, which can further improve the crushing effect of the fertilizer and keep the particle size of the fertilizer roughly uniform, which is convenient for the later screening process.

[0031] In summary, the present invention realizes the preliminary crushing of fertilizer without dead angles in a confined space, and adopts the method of shoveling and throwing to realize the return of fertilizer and re-crushing, which effectively improves the crushing effect, and at the same time utilizes the circulating airflow to drive the fertilizer to move at high speed and dry and dehumidify, and at the same time drives the fertilizer to impact the impact screen to realize re-crushing, so that the crushing effect is better, and the crushed fertilizer particles are uniform and fine, and the appearance is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0033] Figure 1 This is a schematic diagram of the structure of a material crushing device based on water-soluble fertilizer processing proposed by the present invention;

[0034] Figure 2 for Figure 1 Schematic diagram of the structure after rotating a certain angle;

[0035] Figure 3 for Figure 1 Schematic diagram of the internal structure of the middle crushing box;

[0036] Figure 4 for Figure 3 A front view of

[0037] Figure 5 for Figure 3 Structural diagram of the middle receiving box and the bearing platform;

[0038] Figure 6 for Figure 5 Schematic diagram of the structure of the middle lifting box and two crushing knife rollers;

[0039] Figure 7 for Figure 6 Schematic diagram of the structure after removing the tipping box;

[0040] Figure 8 for Figure 3 Structural diagram of the middle discharge box and drying box;

[0041] Fig. 9 for Figure 8 Schematic diagram of the internal structure of the middle discharge box and drying box;

[0042] Fig.10 for Fig. 9 A front view of

[0043] Fig.11 for Fig. 9 Middle servo motor 1. Schematic diagram of the internal structure of the discharge box;

[0044] Fig.12 for Fig.11 Schematic diagram of the internal structure of the central induced draft box;

[0045] Fig.13 for Fig. 9 Schematic diagram of the structure of the vibration plate.

[0046] In the figure: 1 crushing box, 2 bearing platform, 3 feed hopper, 4 control console, 5 receiving box, 6 servo motor 1, 7 discharge box, 8 discharge inclined plate, 9 return air pipe, 10 servo motor 2, 11 shielding cover, 12 drying box, 13 crushing knife roller, 14 lifting box, 15 screening mesh plate, 16 driven roller, 17 linkage roller, 18 driving roller, 19 driving gear, 20 driven gear, 21 shovel box, 22 transmission belt, 23 impact cone, 24 lifting baffle, 25 induced draft box, 26 vibration plate, 27 partition baffle, 28 impact mesh plate, 29 electromagnetic plate 1, 30 wind impeller, 31 air outlet net, 32 heating plate, 33 electromagnetic plate 2, 34 vibration spring. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0048] Example 1: Reference Figure 1-Figure 3 A material crushing device based on water-soluble fertilizer processing includes a bearing platform 2 arranged on a crushing box 1. The crushing box 1 and the bearing platform 2 play a bearing and supporting role to improve the stability during the processing of the water-soluble fertilizer.

[0049] The material crushing device also includes:

[0050] The feeding and crushing unit is arranged on the upper part of the carrying platform 2, and is used to realize the feeding and preliminary crushing processing of water-soluble fertilizer without dead angles, and realize the turning back of fertilizer and secondary crushing after the preliminary crushing, so as to effectively improve the crushing effect of fertilizer;

[0051] The dehumidification and crushing unit is arranged in the crushing box 1, and is used to realize the drying and impact crushing of water-soluble fertilizers, realize the cyclic dehumidification and drying of fertilizers, avoid the agglomeration of fertilizers after crushing, and drive the fertilizers to move to realize impact crushing, which can not only further improve the effect of fertilizer crushing, but also control the particle size of the fertilizers after crushing to be roughly the same, which is convenient for subsequent screening, reprocessing and other processes of the fertilizers.

[0052] A control console 4 is provided on the supporting platform 2, and the control console 4 is used for opening and closing and operating status of the feed crushing unit and the dehumidification crushing unit, and controlling the operating speed and power of the feed crushing unit and the dehumidification crushing unit according to the content of the fertilizer to be crushed, so as to realize automated energy-saving and efficient crushing operation.

[0053] Example 2: Reference Figure 2-Figure 7 The technical solution of this embodiment is different from that of the first embodiment in that: the feed crushing unit includes a driving component, a crushing component and a return component, wherein the driving component is used to drive the crushing component and the return component to operate, so as to realize the initial crushing of the water-soluble fertilizer and the secondary crushing after the return;

[0054] A receiving box 5 is provided on the carrying platform 2, and a feed hopper 3 is fixedly connected to the receiving box 5. The feed hopper 3 is used to feed water-soluble fertilizers. After the water-soluble fertilizers enter through the feed hopper 3, they fall into the receiving box 5 for preliminary crushing.

[0055] The driving assembly includes a servo motor 10 fixedly mounted on the carrying platform 2, a driving roller 18 is arranged on the driving end of the servo motor 10, a shielding cover 11 is fixedly mounted on the carrying platform 2, and a driven roller 16 is rotatably mounted in the shielding cover 11, and the servo motor 10 starts to drive the driving roller 18 to rotate;

[0056] The crushing assembly includes a driving gear 19 fixedly mounted on the driving roller 18, and a driven gear 20 fixedly mounted on the driven roller 16, and the driving gear 19 is meshed with the driven gear 20. The rotation of the driving roller 18 will drive the driving gear 19 thereon to rotate, and the rotation of the driving gear 19 will drive the driven gear 20 meshed therewith to rotate, and the rotation of the driven gear 20 will drive the driven roller 16 to rotate, so that the servo motor 10 can be started to drive the driving roller 18 and the driven roller 16 to rotate synchronously, and the rotation directions of the driving roller 18 and the driven roller 16 are opposite.

[0057] Crushing knife rollers 13 for crushing fertilizers are fixedly mounted on the driving roller 18 and the driven roller 16, and the two crushing knife rollers 13 are both located in the receiving box 5. The water-soluble fertilizers falling into the receiving box 5 will contact the two rotating crushing knife rollers 13. At this time, the two crushing knife rollers 13 will perform preliminary rotational cutting and crushing on the fertilizers. The two crushing knife rollers 13 rotate in opposite directions, which have a higher rotational cutting force, can further improve the cutting and crushing efficiency of the fertilizers, and the crushing effect is better.

[0058] According to the instruction manual Figure 3-5 As shown, the two pulverizing rollers 13 are basically fully filled in the receiving box 5, so that there is basically no gap between the two pulverizing rollers 13 or between the two pulverizing rollers 13 and the inner wall of the receiving box 5, that is, the water-soluble fertilizer will fully contact the two pulverizing rollers 13 when falling, and will not fall directly through the gap on the side, thereby effectively avoiding the occurrence of pulverizing dead corners and achieving a better pulverizing effect.

[0059] In a further embodiment, the material return assembly includes a turning box 14 fixedly connected to the lower part of the receiving box 5, a linkage roller 17 is rotatably installed in the turning box 14, and a transmission belt 22 is sleeved between the linkage roller 17 and the driven roller 16, and a plurality of turning shovel boxes 21 for turning fertilizer are fixedly installed on the linkage roller 17, and the plurality of turning shovel boxes 21 are all located inside the turning box 14;

[0060] When the driven roller 16 rotates, it drives the linkage roller 17 to rotate under the cooperation of the transmission belt 22. When the linkage roller 17 rotates, it drives the multiple shovel boxes 21 thereon to rotate, so that the shovel boxes 21 reciprocate in the turning box 14.

[0061] The fertilizer after preliminary crushing in the receiving box 5 will fall into the turning box 14, and when the fertilizer falls, it will fall into the multiple turning boxes 21, and with the rotation of the turning boxes 21, the fertilizer in the turning box 14 will be thrown upward and turned, so that the fertilizer can go up and return to the receiving box 5 under the action of turning;

[0062] Multiple shovel boxes 21 cooperate with each other to throw the fertilizer back into the receiving box 5 again, so that the fertilizer comes into contact with the crushing roller 13 in the receiving box 5 again. At this time, the crushing roller 13 will cut and crush the fertilizer again, realizing the secondary crushing of the fertilizer and further improving the crushing effect of the fertilizer.

[0063] Each shovel box 21 is provided with a plurality of filter holes, which are used to screen the size of fertilizer particles, so that the fertilizer with a larger volume falling into the shovel box 21 will be thrown again with the shovel box 21, while the fertilizer with a smaller volume will directly fall through the filter holes, thereby achieving the filtering and screening of the fertilizer;

[0064] A screening mesh plate 15 for screening fertilizers is fixedly installed in the turning box 14. After being crushed, the fertilizers that meet the particle size will continue to fall through the screening mesh plate 15 for subsequent re-crushing, while the larger fertilizers will remain on the screening mesh plate 15 and be turned over and returned by the turning box 21 for re-crushing until all the fertilizers are crushed and fall through the screening mesh plate 15, completing the entire process of preliminary crushing of the fertilizers.

[0065] Example 3: Reference Figure 2-Figure 4 as well as Figure 8-Figure 13 The technical solution of this embodiment is different from that of the second embodiment in that the dehumidification and crushing unit includes a circulating air blowing component, a drying component and an impact component, wherein the circulating air blowing component is used to realize the movement impact and internal air flow circulation of the fertilizer, the drying component is used to realize the dehumidification and drying of the fertilizer, and the impact component is used to realize the impact crushing of the fertilizer;

[0066] The circulating air blowing assembly includes a drying box 12 fixedly installed in the crushing box 1, and the drying box 12 is connected to the lower part of the turning box 14. A discharge box 7 is fixedly installed in the crushing box 1. The fertilizer that has been initially crushed and falls through the screening mesh plate 15 will fall into the drying box 12 and can be crushed again.

[0067] An air blowing mechanism is installed between the drying box 12 and the discharge box 7, and the air blowing mechanism includes a servo motor 6 fixedly installed outside the drying box 12, an air induced box 25 is fixedly installed in the drying box 12, a fan wheel 30 is fixedly installed on the driving end of the servo motor 6, and the fan wheel 30 is located in the air induced box 25, an air outlet net 31 for air outlet is fixedly installed in the air induced box 25, and a return air pipe 9 for returning air is fixedly connected between the air induced box 25 and the discharge box 7;

[0068] The servo motor 6 starts and drives the fan wheel 30 on its driving end to rotate. The fan wheel 30 rotates and sucks air into the induced draft box 25 through the return air pipe 9 for replenishment, and blows the sucked air into the drying box 12 through the air outlet net 31, so that a right-to-left air flow is formed in the drying box 12 (see the instruction manual). Fig.10 direction shown).

[0069] In a further embodiment, the drying assembly includes a plurality of heating plates 32 fixedly mounted in a drying box 12, and a plurality of activated carbon plates for absorbing water are arranged in the drying box 12;

[0070] The wind flow entering the drying box 12 will come into contact with the falling fertilizer, and cooperate with multiple heating plates 32 to blow and heat the fertilizer to dry it, which can effectively remove moisture from the fertilizer, and the removed moisture will be directly absorbed by the activated carbon plate, thereby playing a better initial role and avoiding excessive water vapor in the fertilizer and agglomeration after crushing.

[0071] A vibration plate 26 is slidably installed in the drying box 12, and a plurality of vibration springs 34 are fixedly installed between the vibration plate 26 and the bottom of the drying box 12. Two electromagnetic plates 2 33 are fixedly installed at the lower part of the vibration plate 26, and two electromagnetic plates 1 29 matching the corresponding electromagnetic plates 2 33 are fixedly installed at the bottom of the drying box 12;

[0072] During the drying and impacting process of the fertilizer, the electromagnetic plate 1 29 and the electromagnetic plate 2 33 will be alternately powered on and off. When the electromagnetic plate 1 29 and the electromagnetic plate 2 33 are powered on, the two will generate magnetic force and attract each other, thereby pulling the vibration plate 26 down and compressing the multiple vibration springs 34. When the vibration plate 26 moves down to the maximum distance, the electromagnetic plate 1 29 and the electromagnetic plate 2 33 will be powered off and demagnetized. At this time, the multiple vibration springs 34 will automatically extend and push the vibration plate 26 to move up and reset, and the reciprocating up and down vibration of the vibration plate 26 will be realized under the elastic rebound action of the multiple vibration springs 34. Repeating the above-mentioned power-on and power-off steps of the electromagnetic plate 1 29 and the electromagnetic plate 2 33 can realize uninterrupted vibration of the vibration plate 26.

[0073] From the above principle, it can be known that part of the fertilizer falling into the drying box 12 will fall onto the vibration plate 26. At this time, under the reciprocating vibration of the vibration plate 26, the fertilizer will be constantly bounced up, and in the process of bouncing up, it will come into contact with the wind and airflow and be blown away. The vibration of the vibration plate 26 can greatly increase the movement rate of the fertilizer, and in the process of the fertilizer movement, it cooperates with the heating plate 32 to heat and dehydrate it, so as to avoid the fertilizer from agglomerating after drying, and at the same time effectively avoid the fertilizer from accumulating on the vibration plate 26 and being unable to be crushed.

[0074] In a further embodiment, the impact assembly includes an impact cone 23 fixedly connected between the drying box 12 and the discharge box 7, a partition baffle 27 is fixedly installed in the discharge box 7, and an impact mesh plate 28 for impacting and crushing the fertilizer is fixedly installed on the partition baffle 27;

[0075] From right to left in the drying box 12 (instruction manual attached) Fig.10The wind force and airflow in the direction shown in the figure, and the directions described below are the same) will directly enter the impact cone 23. Since the fertilizer falls from top to bottom into the drying box 12, and under the vibration of the vibration plate 26, the fertilizer will diffuse in the drying box 12, so that the wind force and airflow entering the impact cone 23 will entrain the fertilizer in the drying box 12, so that the fertilizer will enter the impact cone 23 synchronously, completing the blowing of the fertilizer;

[0076] Since the inner diameter of the impact cone 23 gradually decreases from right to left, the flow velocity of the wind force airflow will gradually increase when it flows in the impact cone 23, thereby gradually accelerating the fertilizer. When the fertilizer rushes out through the port of the impact cone 23, it will hit the impact mesh plate 28 in the partition baffle 27 at high speed, and the fertilizer will be crushed again under the action of the impact, which can further improve the crushing effect of the fertilizer and keep the particle size of the fertilizer roughly uniform.

[0077] The crushed fertilizer that meets the particle size will directly pass through the mesh holes on the impact screen 28 and fall to the left side of the partition baffle 27 in the discharge box 7, thus completing the discharge. However, the fertilizer that does not meet the particle size cannot pass through the impact screen 28 and will fall to the right side of the partition baffle 27 in the discharge box 7 under the action of gravity and accumulate at the bottom of the discharge box 7.

[0078] In a further embodiment, the un-crushed fertilizer accumulated at the bottom of the discharge box 7 will leave the discharge box 7 with the air flow under the action of the back-suction air supply of the return air pipe 9, and enter the induced draft box 25, and then rush out through the air outlet net 31 in the induced draft box 25 and return to the drying box 12, and then be impact-crushed again until the particle size meets the requirements and falls to the left side of the discharge box 7 for discharge;

[0079] The fertilizer entering the induced draft box 25 will contact the impeller 30 when flowing. At this time, the rotating impeller 30 will rotate and cut the fertilizer, thereby cutting and crushing the fertilizer again, thereby reducing the volume of the fertilizer particles again and further improving the efficiency of the fertilizer in subsequent impact crushing.

[0080] A discharging mechanism is installed on the discharging box 7, and the discharging mechanism includes a discharging inclined plate 8 fixedly installed on the discharging box 7, and a lifting baffle 24 cooperating with the discharging inclined plate 8 is slidably installed on the discharging box 7. A positioning pin is slidably installed on the lifting baffle 24, and two positioning holes cooperating with the positioning pins are provided on the discharging box 7. When the fertilizer is crushed, the lifting baffle 24 can be pulled up, and the positioning pins on the lifting baffle 24 can be slid to make it engage with the positioning holes on the discharging box 7 to complete the lifting and positioning of the lifting baffle 24, thereby releasing the blocking of the discharging inclined plate 8 by the lifting baffle 24. At this time, the crushed water-soluble fertilizer in the discharging box 7 can be automatically discharged through the discharging inclined plate 8 to complete the collection of the water-soluble fertilizer.

[0081] The embodiment of the present invention further provides a material crushing method based on water-soluble fertilizer processing, and a material crushing device for the above-mentioned water-soluble fertilizer processing, comprising the following steps:

[0082] S1. When crushing the water-soluble fertilizer, first put it into the crushing assembly in the feeding crushing unit, start the driving assembly to drive the crushing assembly to work, and perform preliminary crushing on the water-soluble fertilizer;

[0083] S2, the fertilizer after preliminary crushing falls into the return material assembly, and returns to the crushing assembly under the return material action of the return material assembly, so as to realize the secondary crushing of the fertilizer;

[0084] S3. After being crushed, the fertilizer that meets the particle size requirements will fall into the drying component in the dehumidification crushing unit, and under the driving action of the circulating air blowing component, the fertilizer is dried and dehumidified;

[0085] S4, the circulating air blowing component generates circulating wind to drive the fertilizer to move, so that the fertilizer is impacted at high speed under the action of the impact component and is crushed again during the impact process;

[0086] S5. After impact crushing, the fertilizer particles that meet the particle size requirements are directly discharged, and the fertilizer particles that do not meet the particle size requirements are returned to the drying component with the return air component of the circulating air blowing component to be dried and impact crushed again until all the crushing is completed.

[0087] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A material crushing device based on water-soluble fertilizer processing, comprising a bearing platform (2) arranged on a crushing box (1), characterized in that: Also includes: The feeding and crushing unit is arranged on the upper part of the carrying platform (2) and is used to realize the feeding and preliminary crushing of the water-soluble fertilizer, and comprises a driving component, a crushing component and a returning component, wherein the driving component is used to drive the crushing component and the returning component to operate, so as to realize the preliminary crushing of the water-soluble fertilizer and the secondary crushing after the returning material; The dehumidification and crushing unit is arranged in a crushing box (1) and is used to realize the drying and impact crushing of water-soluble fertilizers. The unit comprises a circulating air blowing component, a drying component and an impact component. The circulating air blowing component is used to realize the movement impact and internal air flow circulation of the fertilizer, the drying component is used to realize the dehumidification and drying of the fertilizer, and the impact component is used to realize the impact crushing of the fertilizer.

2. A material crushing device based on water-soluble fertilizer processing according to claim 1, characterized in that: The driving assembly comprises a servo motor 2 (10) fixedly mounted on a carrying platform (2); a receiving box (5) is provided on the carrying platform (2), and a feed hopper (3) is fixedly connected to the receiving box (5); a driving roller (18) is provided on the driving end of the servo motor 2 (10); a shielding cover (11) is fixedly mounted on the carrying platform (2), and a driven roller (16) is rotatably mounted in the shielding cover (11); and a control console (4) is provided on the carrying platform (2).

3. A material crushing device based on water-soluble fertilizer processing according to claim 2, characterized in that: The crushing assembly comprises a driving gear (19) fixedly mounted on a driving roller (18), a driven gear (20) fixedly mounted on the driven roller (16), and the driving gear (19) meshes with the driven gear (20), and crushing knife rollers (13) for crushing fertilizer are fixedly mounted on both the driving roller (18) and the driven roller (16), and the two crushing knife rollers (13) are both located in a receiving box (5).

4. A material crushing device based on water-soluble fertilizer processing according to claim 3, characterized in that: The material return assembly comprises a turning box (14) fixedly connected to the lower part of the receiving box (5), a linkage roller (17) rotatably mounted in the turning box (14), a transmission belt (22) sleeved between the linkage roller (17) and the driven roller (16), a plurality of turning shovel boxes (21) for turning fertilizers are fixedly mounted on the linkage roller (17), and the plurality of turning shovel boxes (21) are all located inside the turning box (14), and a screening mesh plate (15) for screening fertilizers is fixedly mounted in the turning box (14).

5. A material crushing device based on water-soluble fertilizer processing according to claim 4, characterized in that: The circulating air blowing assembly comprises a drying box (12) fixedly installed in the crushing box (1), and the drying box (12) is connected to the lower part of the turning box (14), a discharge box (7) is fixedly installed in the crushing box (1), and an air blowing mechanism is installed between the drying box (12) and the discharge box (7).

6. A material crushing device based on water-soluble fertilizer processing according to claim 5, characterized in that: The air blowing mechanism comprises a servo motor (6) fixedly mounted on the outside of a drying box (12); an air induced draft box (25) fixedly mounted in the drying box (12); a fan wheel (30) fixedly mounted on the driving end of the servo motor (6); and the fan wheel (30) is located in the air induced draft box (25); an air outlet net (31) for air outlet is fixedly mounted in the air induced draft box (25); and an air return pipe (9) for air return is fixedly connected between the air induced draft box (25) and the discharge box (7).

7. A material crushing device based on water-soluble fertilizer processing according to claim 5, characterized in that: The drying assembly comprises a plurality of heating plates (32) fixedly mounted in a drying box (12), a vibration plate (26) being slidably mounted in the drying box (12), and a plurality of vibration springs (34) being fixedly mounted between the vibration plate (26) and the bottom of the drying box (12), two electromagnetic plates (23) being fixedly mounted at the bottom of the vibration plate (26), and two electromagnetic plates (29) matching the corresponding electromagnetic plates (23) being fixedly mounted at the bottom of the drying box (12).

8. A material crushing device based on water-soluble fertilizer processing according to claim 5, characterized in that: The impact assembly comprises an impact cone (23) fixedly connected between a drying box (12) and a discharge box (7); a partition baffle (27) is fixedly installed in the discharge box (7); an impact mesh plate (28) for impacting and crushing fertilizer is fixedly installed on the partition baffle (27); and a discharge mechanism is installed on the discharge box (7).

9. A material crushing device based on water-soluble fertilizer processing according to claim 8, characterized in that: The discharging mechanism comprises a discharging inclined plate (8) fixedly mounted on a discharging box (7), a lifting baffle (24) matched with the discharging inclined plate (8) being slidably mounted on the discharging box (7), a positioning pin being slidably mounted on the lifting baffle (24), and two positioning holes matched with the positioning pins being provided on the discharging box (7).

10. A material crushing method based on water-soluble fertilizer processing, used for the material crushing device for water-soluble fertilizer processing as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When crushing the water-soluble fertilizer, first put it into the crushing assembly in the feeding crushing unit, start the driving assembly to drive the crushing assembly to work, and perform preliminary crushing on the water-soluble fertilizer; S2, the fertilizer after preliminary crushing falls into the return material assembly, and returns to the crushing assembly under the return material action of the return material assembly, so as to realize the secondary crushing of the fertilizer; S3. After being crushed, the fertilizer that meets the particle size requirements will fall into the drying component in the dehumidification crushing unit, and under the driving action of the circulating air blowing component, the fertilizer is dried and dehumidified; S4, the circulating air blowing component generates circulating wind to drive the fertilizer to move, so that the fertilizer is impacted at high speed under the action of the impact component and is crushed again during the impact process; S5. After impact crushing, the fertilizer particles that meet the particle size requirements are directly discharged, and the fertilizer particles that do not meet the particle size requirements are returned to the drying component with the return air component of the circulating air blowing component to be dried and impact crushed again until all the crushing is completed.

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