A fertilizer raw material uniform mixing device for compound fertilizer production

Abstract

The application relates to a fertilizer raw material uniform mixing device for compound fertilizer production, which comprises a frame body, a uniform mixing bin for containing raw materials arranged on the frame body, a discharge hopper arranged at one end of the uniform mixing bin, a feeding hopper arranged on the uniform mixing bin, a crushing roller arranged in the feeding hopper and used for crushing raw materials, a uniform mixing rod arranged in the uniform mixing bin, a driving element arranged on the frame body, and a blowing mechanism arranged at the bottom of the frame body. The uniform mixing rod can be used for stirring, and the blowing mechanism can be used for upward blowing of bottom layer raw materials, so that the raw materials can be three-dimensionally mixed in the uniform mixing bin, the problem of uneven mixing of bottom layer raw materials is effectively solved, and the uniformity of fertilizer raw material mixing is greatly improved.

Description

Technical Field

[0001] This application relates to the field of fertilizer production technology, and in particular to a uniform mixing device for fertilizer raw materials in the production of compound fertilizers. Background Technology

[0002] In the production process of compound fertilizers, the uniform mixing of fertilizer raw materials is the initial step in fertilizer production.

[0003] Existing fertilizer raw material mixing equipment typically employs a single stirring structure, using a rotating stirring rod or paddle within the mixing chamber to mix the raw materials. However, in actual operation, due to the weight of the raw materials themselves and the limitations of the stirring method, the raw materials located at the bottom of the mixing chamber often fail to achieve sufficient and effective mixing.

[0004] On the one hand, during the mixing process, the upper layer of raw materials can be easily moved and turned over by the stirring force, while the lower layer of raw materials, due to the pressure from the upper layer and the restriction at the bottom of the mixing chamber, has poor fluidity and is difficult to fully exchange and mix with the upper layer. This results in uneven component distribution in the lower layer of raw materials after mixing, and different raw materials may not be fully integrated.

[0005] To address the aforementioned issues, a device for uniformly mixing fertilizer raw materials in compound fertilizer production has been designed. Utility Model Content

[0006] This application provides a fertilizer raw material uniform mixing device for compound fertilizer production, which solves the problem that in the actual operation of existing fertilizer raw material mixing equipment, the raw materials located at the bottom of the mixing chamber are often difficult to be fully and effectively mixed due to the weight of the raw materials themselves and the limitations of the stirring method.

[0007] In a first aspect, a device for uniformly mixing fertilizer raw materials for compound fertilizer production is provided, comprising:

[0008] The frame includes a mixing chamber for holding raw materials, a discharge hopper at one end of the mixing chamber, a feeding hopper on the mixing chamber, a crushing roller for crushing raw materials inside the feeding hopper, a mixing rod inside the mixing chamber, and a driving component on the frame for driving the mixing rod and the crushing roller to rotate synchronously.

[0009] The bottom of the frame is equipped with an air blowing mechanism, which includes an air blowing pipe installed inside the mixing chamber. The air blowing pipe is used to blow the raw materials located at the bottom of the mixing chamber upwards.

[0010] In some embodiments, a discharge port is provided at one end of the mixing chamber;

[0011] The discharge hopper includes a sealing plate hinged at the discharge port and a discharge hopper located at the bottom of the discharge port of the mixing chamber. The discharge hopper is U-shaped and its end away from the discharge port slopes downward.

[0012] A connecting seat is hinged above the discharge hopper, and an electric push rod is provided on the connecting seat. The piston rod of the electric push rod is connected to the sealing plate and is used to drive the sealing plate to rotate and control the opening and closing of the discharge port.

[0013] In some embodiments, the feeding hopper is located on the side of the mixing chamber, and the bottom of the feeding hopper has a feeding port that communicates with the mixing chamber;

[0014] The feeding hopper is equipped with a material distribution plate located above the crushing roller, and the material distribution plate is V-shaped.

[0015] In some embodiments, there are two crushing rollers, which are arranged opposite each other in the feeding hopper. The crushing teeth on the two crushing rollers are staggered. One end of each crushing roller extends out of the feeding hopper. Both crushing rollers are provided with gears that mesh with each other.

[0016] In some embodiments, the mixing rod includes a rotating shaft rotatably disposed inside the mixing chamber, one end of the rotating shaft extending outside the mixing chamber, a plurality of stirring rods disposed on the rotating shaft, and two sets of helical blades disposed on the rotating shaft, the helical blades being connected to the sidewalls of the corresponding stirring rods.

[0017] In some embodiments, the driving component includes a mounting base 1 disposed on the frame, a drive motor disposed on the mounting base 1, a reducer disposed at one end of the mixing chamber, the output shaft of the reducer being connected to the outwardly extending end of the rotating shaft, and the output shaft of the drive motor being connected to the input shaft of the reducer.

[0018] A sprocket is provided on the side wall of one of the outwardly extending ends of the rotating shaft. The other end of one of the crushing rollers extends outward, and a sprocket is provided on the other outwardly extending end of the crushing roller. The sprocket one and the sprocket two are driven by a chain.

[0019] In some embodiments, the blowing pipe includes a main pipe disposed inside the mixing chamber, the main pipe being located below the mixing rod, and the bottom of the main pipe being connected to a plurality of short pipes with downward openings, the bottom openings of the short pipes being provided with filter screens.

[0020] In some embodiments, the blowing mechanism further includes a second mounting base on the frame, a fan mounted on the second mounting base, an air inlet pipe of the fan connected to a filter screen, one end of the main pipe extending outside the mixing chamber, and the air outlet of the fan connected to the outward extension end of the main pipe.

[0021] This application provides a fertilizer raw material uniform mixing device for compound fertilizer production. By stirring with a mixing rod and blowing the bottom raw material upward with an air blowing mechanism, the raw material is three-dimensionally mixed in the mixing chamber, which effectively solves the problem of uneven mixing of the bottom raw material and greatly improves the uniformity of fertilizer raw material mixing, thereby ensuring the quality stability of compound fertilizer products.

[0022] By installing crushing rollers inside the feeding hopper, the raw materials are crushed before entering the mixing chamber, making the raw material particles more uniform in size, which is beneficial for subsequent mixing operations. This achieves the integration of crushing and mixing, and improves production efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A three-dimensional structural illustration provided for an embodiment of this application. Figure 1 ;

[0025] Figure 2 A three-dimensional structural illustration provided for an embodiment of this application. Figure 2 ;

[0026] Figure 3 A three-dimensional schematic diagram of the connection structure between the drive component and the crushing roller provided in the embodiments of this application;

[0027] Figure 4 This is a three-dimensional schematic diagram of the connection structure between the driving component and the mixing rod provided in an embodiment of this application;

[0028] Figure 5 Formal cross-sectional view provided for embodiments of this application;

[0029] Figure 6 This is a left sectional view provided for an embodiment of this application.

[0030] In the diagram: 1. Frame; 2. Mixing bin; 3. Discharge hopper; 31. Sealing plate; 32. Discharge hopper; 33. Connecting seat; 34. Electric push rod; 4. Feeding hopper; 41. Feeding port; 42. Distributing plate; 5. Crushing roller; 51. Gear; 6. Mixing rod; 61. Rotating shaft; 62. Stirring rod; 63. Spiral blade; 7. Drive component; 71. Mounting seat one; 72. Drive motor; 73. Reducer; 74. Sprocket one; 75. Sprocket two; 8. Air blowing mechanism; 81. Air blowing pipe; 811. Main pipe; 812. Short pipe; 813. Filter screen; 82. Mounting seat two; 83. Fan. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] This application provides a fertilizer raw material uniform mixing device for compound fertilizer production, which can solve the problem that in the actual operation of existing fertilizer raw material mixing equipment, the raw materials located at the bottom of the mixing chamber are often difficult to be fully and effectively mixed due to the weight of the raw materials themselves and the limitations of the stirring method.

[0033] Please see Figures 1-3 A uniform mixing device for compound fertilizer production includes: a frame 1, and a mixing chamber 2 disposed on the frame 1 for holding raw materials. One end of the mixing chamber 2 is provided with a discharge hopper 3, and a feeding hopper 4 is disposed on the mixing chamber 2. A crushing roller 5 for crushing the raw materials is disposed inside the feeding hopper 4. A mixing rod 6 is disposed inside the mixing chamber 2. A driving component 7 is disposed on the frame 1, and the driving component 7 is used to drive the mixing rod 6 and the crushing roller 5 to rotate synchronously. An air blowing mechanism 8 is disposed at the bottom of the frame 1. The air blowing mechanism 8 includes an air blowing pipe 81 disposed inside the mixing chamber 2, and the air blowing pipe 81 is used to blow the raw materials located at the bottom layer inside the mixing chamber 2 upwards.

[0034] Fertilizer raw materials are fed into the feeding hopper 4. The raw materials come into contact with the crushing roller 5 inside the feeding hopper 4. The driving component 7 drives the crushing roller 5 to rotate, crushing the raw materials and breaking the large, sticky raw materials into smaller particles, which facilitates subsequent mixing operations.

[0035] After being crushed, the raw materials enter the mixing chamber 2 through the feeding port 41 at the bottom of the feeding hopper 4. At the same time, the driving component 7 drives the mixing rod 6 to rotate, and the mixing rod 6 stirs the raw materials. Meanwhile, the air blowing mechanism 8 at the bottom of the frame 1 starts to work, blowing air evenly to the bottom layer of raw materials inside the mixing chamber 2. The blown air blows the bottom layer of raw materials upward, so that the bottom layer of raw materials and the upper layer of raw materials can fully contact and exchange, further improving the uniformity of the raw material mixing.

[0036] After the raw materials are mixed, the uniformly mixed raw materials are discharged from the mixing chamber 2 through the discharge hopper 32.

[0037] The mixing rod 6 stirs the raw materials in the bottom layer, and the blowing mechanism 8 blows the raw materials upward, so that the raw materials are mixed in three dimensions in the mixing chamber 2. This effectively solves the problem of uneven mixing of the raw materials in the bottom layer, greatly improves the uniformity of fertilizer raw material mixing, and thus ensures the quality stability of compound fertilizer products.

[0038] By installing crushing rollers 5 inside the feeding hopper 4, the raw materials are crushed before entering the mixing chamber 2, making the raw material particles more uniform in size, which is beneficial to subsequent mixing operations. This achieves the integration of crushing and mixing, and improves production efficiency.

[0039] like Figure 2 and 3 As shown, in one embodiment, the mixing chamber 2 has a discharge port at one end; the discharge hopper 3 includes a sealing plate 31 hinged to the discharge port, and a discharge hopper 32 disposed at the bottom of the discharge port of the mixing chamber 2. The discharge hopper 32 is U-shaped and its end away from the discharge port is inclined downward; a connecting seat 33 is hinged above the discharge hopper 32, and an electric push rod 34 is disposed on the connecting seat 33. The piston rod of the electric push rod 34 is connected to the sealing plate 31 and is used to drive the sealing plate 31 to rotate and control the opening and closing of the discharge port.

[0040] After the fertilizer raw materials are uniformly mixed in the mixing chamber 2, when the discharge operation is required, the electric push rod 34 is started. The piston rod of the electric push rod 34 begins to retract. The sealing plate 31 is hinged at the discharge port at one end of the mixing chamber 2. As the piston rod retracts, it pulls the sealing plate 31 to rotate around its hinge point, thereby opening the discharge port.

[0041] Under the influence of gravity, the uniformly mixed fertilizer raw materials are discharged from the outlet into the discharge hopper 32. The discharge hopper 32 is U-shaped with one end tilted downwards, allowing the raw materials to slide smoothly down the tilt direction of the discharge hopper 32 and be discharged from the mixing chamber 2.

[0042] Once the material discharge is complete, the electric push rod 34 is activated again, causing its piston rod to extend and push the sealing plate 31 to rotate in the opposite direction until the sealing plate 31 completely seals the discharge port, preventing the raw material from continuing to flow out and preparing for the next mixing operation.

[0043] The opening and closing of the discharge port is controlled by rotating the sealing plate 31 driven by the electric push rod 34. Operators can accurately control the discharge time and discharge amount according to actual production needs, avoiding waste of raw materials and unnecessary losses.

[0044] like Figure 2 and Figure 3As shown, in one embodiment, the feeding hopper 4 is disposed on the side of the mixing chamber 2, and the bottom of the feeding hopper 4 is provided with a feeding port 41 communicating with the mixing chamber 2; the feeding hopper 4 is provided with a material distribution plate 42 located above the crushing roller 5, and the material distribution plate 42 is V-shaped.

[0045] When fertilizer raw materials are fed into the feeding hopper 4, the raw materials first fall onto the V-shaped distribution plate 42. Under the action of their own gravity, the raw materials slide down to both sides of the distribution plate 42, thus being evenly distributed to the area above the two crushing rollers 5 below the distribution plate 42.

[0046] The dispersed raw materials slide from both sides of the distribution plate 42 onto the crushing roller 5. The driving component 7 drives the crushing roller 5 to rotate, crushing the raw materials that fall into it, breaking large pieces of raw materials into small particles. The crushed raw materials enter the mixing chamber 2 through the feeding port 41 at the bottom of the feeding hopper 4.

[0047] The material distribution plate 42 can evenly disperse the raw materials fed into the feeding hopper 4 above the two crushing rollers 5, avoiding the accumulation of raw materials in a certain area, ensuring that the crushing rollers 5 can crush the raw materials evenly, and improving crushing efficiency and effect.

[0048] When the uniformly dispersed raw materials enter the crushing rollers 5, they can make more thorough contact with the crushing teeth, resulting in more complete crushing and more uniform particle size. This is beneficial for subsequent mixing operations in the mixing chamber 2 and improves the uniformity of mixing.

[0049] like Figure 3 , Figure 4 and Figure 6 As shown, in a preferred embodiment, there are two crushing rollers 5, which are arranged opposite each other inside the feeding hopper 4. The crushing teeth on the two crushing rollers 5 are staggered, and one end of each crushing roller 5 extends outside the feeding hopper 4. Both crushing rollers 5 are provided with gears 51 extending outwards, and the two gears 51 mesh with each other. Two guide blocks are arranged opposite each other on the feeding hopper 4, located on both sides of the top of the two crushing rollers 5, for guiding the raw material falling from the distribution plate 42 to the middle of the two crushing rollers 5. The guide blocks have through holes for the crushing teeth of the crushing rollers 5 to pass through.

[0050] After the fertilizer raw materials are put into the feeding hopper 4, the raw materials first fall onto the distribution plate 42, causing the raw materials to slide to both sides. The two guide blocks are located on the top sides of the two crushing rollers 5, which can accurately guide the raw materials falling from the distribution plate 42 to the middle position of the two crushing rollers 5.

[0051] The driving component 7 drives one of the crushing rollers 5 to rotate. Since both crushing rollers 5 have gears 51 at their outward-extending ends and the two gears 51 mesh with each other, according to the principle of gear transmission, the two crushing rollers 5 rotate relative to each other. When the raw material enters between the two relatively rotating crushing rollers 5 with their crushing teeth staggered, the crushing teeth will squeeze and shear the raw material, breaking large pieces of raw material into small particles.

[0052] The guide block guides the raw material to accurately enter between the two crushing rollers 5, so that the raw material is in full contact with the crushing rollers 5, thereby improving crushing efficiency and quality.

[0053] The synchronous reverse rotation of the two crushing rollers 5 is achieved by the meshing of gears 51. This transmission method has a simple structure, accurate transmission ratio, and reliable operation. It can ensure that the two crushing rollers 5 always maintain a relatively stable rotation state, reducing problems such as uneven crushing caused by unstable transmission.

[0054] like Figure 4 and Figure 5 As shown, in one embodiment, the mixing rod 6 includes a rotating shaft 61 rotatably disposed inside the mixing chamber 2. One end of the rotating shaft 61 extends outside the mixing chamber 2. Multiple stirring rods 62 are disposed on the rotating shaft 61. Two sets of helical blades 63 are disposed on the rotating shaft 61, and the helical blades 63 are connected to the sidewalls of the corresponding stirring rods 62. A bearing seat is disposed on one side of the mixing chamber 2, and the other end of the rotating shaft 61 is rotatably connected to the bearing seat.

[0055] The drive component 7 drives the rotating shaft 61 to rotate, and the bearing housing provides stable support for the rotating shaft 61 to ensure that it can rotate smoothly.

[0056] When the rotating shaft 61 rotates, it drives multiple stirring rods 62 mounted on it to rotate together. The stirring rods 62 stir the fertilizer raw materials in the mixing chamber 2, causing the raw materials to collide and tumble with each other in the horizontal direction, thus achieving preliminary mixing of the raw materials at the horizontal level. The two sets of spiral blades 63 mounted on the rotating shaft 61 also rotate with the rotating shaft 61. During the rotation, the spiral blades 63 will generate axial thrust on the raw materials, conveying the raw materials from one end of the mixing chamber 2 to the other end. During the conveying process, the raw materials will be continuously tumbled by the stirring rods 62 and the spiral blades 63, thus achieving mixing of the raw materials in the vertical direction.

[0057] By combining stirring and spiral conveying, the raw materials are fully mixed in three dimensions within the mixing chamber 2.

[0058] The synergistic effect of the stirring rod 62 and the spiral blade 63 ensures that the raw materials are fully mixed in both the horizontal and vertical directions, greatly improving the mixing uniformity of fertilizer raw materials and ensuring the stable quality of the produced compound fertilizer products.

[0059] The conveying action of the spiral blades 63 can accelerate the flow speed of the raw materials in the mixing chamber 2, so that the raw materials can come into full contact with the stirring rod 62 more quickly, thereby improving the mixing efficiency, shortening the mixing time, and improving the production efficiency.

[0060] like Figure 2 , Figure 3 and Figure 4 As shown, it should be noted that the driving component 7 in this embodiment includes a mounting base 71 mounted on the frame 1, a drive motor 72 mounted on the mounting base 71, a reducer 73 mounted at one end of the mixing chamber 2, the output shaft of the reducer 73 being connected to the outwardly extending end of the rotating shaft 61, and the output shaft of the drive motor 72 being connected to the input shaft of the reducer 73; a sprocket 74 is mounted on the side wall of the outwardly extending end of the rotating shaft 61, and the other end of one of the crushing rollers 5 extends outward, and a sprocket 75 is mounted at the other outwardly extending end of the crushing roller 5, with the sprocket 74 and the sprocket 75 being driven by a chain.

[0061] When the drive motor 72 is turned on, the high-speed rotational power output by the drive motor 72 is transmitted to the reducer 73. After the reducer 73 reduces the power and increases the torque, it transmits the power to the rotating shaft 61, causing the rotating shaft 61 to start rotating. The rotation of the rotating shaft 61 drives the stirring rod 62 and the spiral blade 63 on it to move, thereby realizing the stirring and conveying of the fertilizer raw materials in the mixing chamber 2.

[0062] Meanwhile, a sprocket 74 is provided on the side wall of one end of the rotating shaft 61 that extends outward. At the same time, the other end of one of the crushing rollers 5 also extends outward, and a sprocket 75 is provided on the extended end. The sprocket 74 and the sprocket 75 are driven by a chain. When the rotating shaft 61 rotates, the sprocket 74 rotates accordingly, and drives the sprocket 75 to rotate through the chain, thereby causing the crushing roller 5 to rotate. Since the two crushing rollers 5 are meshed with each other through gears 51, they drive the other crushing roller 5 to rotate relative to each other, thereby crushing the raw materials fed into the feeding hopper 4.

[0063] By using a combination of drive motor 72 and reducer 73, the reducer 73 can reduce the output speed of drive motor 72 and increase the output torque, so that the rotating shaft 61 can obtain stable power drive, ensuring the stability and reliability of mixing raw materials by mixing rod 6.

[0064] Through the transmission method of sprocket 1 74, sprocket 2 75 and chain, the drive motor 72 synchronously drives the mixing rod 6 and the crushing roller 5, reducing the number of power equipment, lowering the cost and complexity of the equipment, simplifying the operation process and improving the overall operating efficiency of the equipment.

[0065] like Figure 4 and Figure 5 As shown, preferably, the blowing pipe 81 in this embodiment includes a main pipe 811 disposed inside the mixing chamber 2. The main pipe 811 is located below the mixing rod 6. The bottom of the main pipe 811 is connected to a plurality of short pipes 812 with downward openings. A filter screen 813 is disposed on the bottom opening of the short pipes 812.

[0066] The gas is delivered to the main pipe 811 of the blowing pipe 81. The main pipe 811 is located below the mixing rod 6 to avoid interference with the movement of the mixing rod 6.

[0067] The gas entering the main pipe 811 then enters multiple short pipes 812. Since the openings of the short pipes 812 face downwards, the gas is discharged from the bottom opening of the short pipes 812, forming multiple dispersed airflows. These dispersed airflows can blow the fertilizer raw materials at the bottom of the mixing chamber 2 from different positions, promoting the turning and mixing of the raw materials.

[0068] A filter screen 813 is installed at the bottom opening of the short pipe 812. The filter screen 813 can block fertilizer raw materials from entering the short pipe 812 and the main pipe 811, prevent raw materials from clogging the pipe, and ensure the normal transportation and discharge of gas. At the same time, the filter screen 813 allows gas to pass through smoothly, ensuring that the blowing effect is not affected.

[0069] Multiple downward-facing short pipes 812 can disperse and discharge gas, forming multiple airflows that blow the raw materials at the bottom of the mixing chamber 2 from different angles and positions, making the raw materials more fully agitated and mixed under the influence of the airflow, effectively improving the mixing uniformity of fertilizer raw materials.

[0070] like Figure 1 and Figure 4 As shown, the blowing mechanism 8 further includes a second mounting base 82 set on the frame 1. A fan 83 is set on the second mounting base 82. The air inlet pipe of the fan 83 is connected to a filter screen. One end of the main pipe 811 extends to the outside of the mixing chamber 2. The air outlet of the fan 83 is connected to the outward extension end of the main pipe 811.

[0071] When the blower 83 starts, outside air passes through the filter screen on the air intake pipe. The filter screen filters out dust, impurities and other particulate matter in the air, ensuring that the air entering the blower 83 is clean and preventing impurities from entering the subsequent blowing pipe 81 and mixing chamber 2 and contaminating the fertilizer raw materials. The clean air filtered by the filter screen is drawn by the blower 83 and delivered to the main pipe 811 through the air outlet of the blower 83. After entering the main pipe 811, the gas will flow along the main pipe 811.

[0072] By providing a stable air source through the blower 83, a continuous and stable gas flow can be ensured in the blowing pipe 81, thereby guaranteeing the blowing effect on the raw materials at the bottom of the mixing chamber 2 and improving the uniformity and efficiency of raw material mixing.

[0073] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0074] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0075] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fertilizer raw material uniform mixing device for compound fertilizer production, characterized in that, include: The frame (1) and the mixing chamber (2) set on the frame (1) for holding raw materials are provided. The mixing chamber (2) is provided with a discharge hopper (3) at one end. The mixing chamber (2) is provided with a feeding hopper (4). The feeding hopper (4) is provided with a crushing roller (5) for crushing raw materials. The mixing chamber (2) is provided with a mixing rod (6). The frame (1) is provided with a driving component (7). The driving component (7) is used to drive the mixing rod (6) and the crushing roller (5) to rotate synchronously. The frame (1) is provided with an air blowing mechanism (8) at the bottom. The air blowing mechanism (8) includes an air blowing pipe (81) provided inside the mixing chamber (2). The air blowing pipe (81) is used to blow the raw material located at the bottom of the mixing chamber (2) upward.

2. The fertilizer raw material uniform mixing device for compound fertilizer production as described in claim 1, characterized in that: The mixing chamber (2) has a discharge port at one end; The discharge hopper (3) includes a sealing plate (31) hinged at the discharge port and a discharge hopper (32) at the bottom of the discharge port of the mixing chamber (2). The discharge hopper (32) is U-shaped and its end away from the discharge port is inclined downward. A connecting seat (33) is hinged above the discharge hopper (32), and an electric push rod (34) is provided on the connecting seat (33). The piston rod of the electric push rod (34) is connected to the sealing plate (31) and is used to drive the sealing plate (31) to rotate and control the opening and closing of the discharge port.

3. The fertilizer raw material uniform mixing device for compound fertilizer production as described in claim 1, characterized in that: The feeding hopper (4) is located on the side of the mixing chamber (2), and the bottom of the feeding hopper (4) is provided with a feeding port (41) that communicates with the mixing chamber (2). The feeding hopper (4) is equipped with a material distribution plate (42) located above the crushing roller (5), and the material distribution plate (42) is V-shaped.

4. The fertilizer raw material uniform mixing device for compound fertilizer production as described in claim 1, characterized in that: The number of the crushing rollers (5) is two. The two crushing rollers (5) are arranged opposite each other in the feeding hopper (4). The crushing teeth on the two crushing rollers (5) are staggered. One end of each of the two crushing rollers (5) extends outward to the outside of the feeding hopper (4). Both crushing rollers (5) are provided with gears (51) extending outward. The two gears (51) mesh with each other.

5. The fertilizer raw material uniform mixing device for compound fertilizer production as described in claim 1, characterized in that: The mixing rod (6) includes a rotating shaft (61) rotatably disposed inside the mixing chamber (2), one end of the rotating shaft (61) extending outside the mixing chamber (2), and multiple stirring rods (62) disposed on the rotating shaft (61). Two sets of spiral blades (63) are disposed on the rotating shaft (61), and the spiral blades (63) are connected to the side wall of the corresponding stirring rod (62).

6. The fertilizer raw material uniform mixing device for compound fertilizer production as described in claim 5, characterized in that: The drive unit (7) includes a mounting base (71) set on the frame (1), a drive motor (72) is set on the mounting base (71), a reducer (73) is set at one end of the mixing chamber (2), the output shaft of the reducer (73) is connected to the outward extension end of the rotating shaft (61), and the output shaft of the drive motor (72) is connected to the input shaft of the reducer (73). A sprocket (74) is provided on the side wall of one end of the rotating shaft (61) extending outward. The other end of one of the crushing rollers (5) extends outward, and a sprocket (75) is provided on the other end of the crushing roller (5). The sprocket (74) and the sprocket (75) are driven by a chain.

7. The fertilizer raw material uniform mixing device for compound fertilizer production as described in claim 1, characterized in that: The blowing pipe (81) includes a main pipe (811) set inside the mixing chamber (2). The main pipe (811) is located below the mixing rod (6). The bottom of the main pipe (811) is connected to a plurality of short pipes (812) with downward openings. A filter screen (813) is set on the bottom opening of the short pipe (812).

8. The fertilizer raw material uniform mixing device for compound fertilizer production as described in claim 7, characterized in that: The blowing mechanism (8) also includes a second mounting base (82) set on the frame (1), a fan (83) is set on the second mounting base (82), the air inlet pipe of the fan (83) is connected to a filter screen, one end of the main pipe (811) extends to the outside of the mixing chamber (2), and the air outlet of the fan (83) is connected to the outward extension end of the main pipe (811).

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