Production line for preparing blended fertilizer

Abstract

The production line for preparing the blended fertilizer comprises a premixing device, a feeding and conveying device and a stirring device which are arranged in sequence, the premixing device comprises a stirring tank arranged under the ground, a premixing motor and a speed reducer which are arranged at the top of the stirring tank, and a stirring shaft arranged in the stirring tank and connected with the speed reducer; the feeding and conveying device comprises a machine frame and a conveying belt arranged on the machine frame, and the stirring device comprises a horizontal stirring box body and a support arranged on the lower portion of the horizontal stirring box body. The underground device with the premixing function and facilitating feeding of fertilizer raw materials has the advantages that the stirring and mixing time of follow-up mixed fertilizer production can be effectively shortened. Through the arrangement of the auxiliary feeding mechanism and the auxiliary discharging mechanism of the conveying device, the defects that fertilizer on a conveying belt is too concentrated during feeding and falling materials are too dispersed during discharging are effectively overcome. Compared with a conventional stirring mode, the production line enables stirring of the blended fertilizer to be more uniform and high in efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer production, in particular to a production line for preparing blended fertilizers. Background Art

[0002] Production lines for preparing blended fertilizers generally include a conveying and feeding device and a stirring device. The stirring device is usually located at a relatively high height, requiring workers to lift the fertilizer raw materials to a high position before feeding them into the stirring device's feed hopper. Directly feeding and stirring through a conveying device usually takes a long time, so it is necessary to premix the fertilizer raw materials, which can effectively reduce the time required for subsequent blended fertilizer production. The stirring device is also located at a relatively high height, requiring workers to transport the fertilizer raw materials to a high position before feeding them into the stirring device's feed hopper. Existing fertilizer feeding and conveying devices often lack auxiliary feeding and discharging mechanisms, relying instead on gravity for direct feeding and discharging. This often results in excessively concentrated fertilizer feeding onto the conveyor belt and excessively dispersed fertilizer discharge during discharging. Fertilizer mixing and stirring devices typically employ a stirring shaft and stirring blade assembly directly within the shell, which often results in insufficient stirring efficiency and prolonged stirring times. Utility Model Content

[0003] The purpose of this utility model is to provide a production line for preparing blended fertilizers in view of the above-mentioned shortcomings.

[0004] The utility model comprises a premixing device, a feeding and conveying device and a stirring device which are arranged in sequence. The premixing device comprises a stirring tank arranged below the ground, a premixing motor and a reducer arranged on the top of the stirring tank, and a stirring shaft arranged inside the stirring tank and connected to the reducer. The feeding and conveying device comprises a frame and a conveyor belt arranged thereon. The stirring device comprises a horizontal stirring box and a bracket arranged at the lower part thereof.

[0005] The mixing tank comprises an upper cylindrical portion and a lower conical cylindrical portion, the top of the upper cylindrical portion is provided with a horizontal plate for people to step on, the horizontal plate is arranged through the top center of the upper cylindrical portion, and the top of the upper cylindrical portion and on both sides of the horizontal plate are also provided with grid bars to prevent people from falling in; the bottom of the lower conical cylindrical portion is provided with a discharge port with a valve, and the discharge port is connected to the feed end of the screw conveyor arranged therebelow; two groups of horizontal cross bars parallel to each other are fixed to the middle and upper part of the mixing shaft, each group of horizontal cross bars consists of two horizontal cross bars symmetrically arranged on both sides of the mixing shaft, and the horizontal cross bars on the same side of the two groups of horizontal cross bars are fixedly connected by multiple vertical rods, and the top and bottom ends of the multiple vertical rods are respectively fixed with a scraper; the lower end of the mixing shaft is located directly above the discharge port, and the lower end of the mixing shaft is also provided with a spiral blade portion for facilitating the discharge of the fertilizer mixture;

[0006] The top end of the lifting gear is connected with the bottom end of the lifting gear, and the bottom end of the lifting gear is connected with the support gear of the lifting gear.

[0007] The cam is connected to the conveyor belt of the conveyor belt and the conveyor belt is connected to the conveyor belt of the conveyor belt.

[0008] Preferably, the screw conveyor is arranged at an angle, and its discharge end is located on one side of the mixing tank.

[0009] Preferably, the scraper is a triangular prism-shaped plate.

[0010] Preferably, the two groups of horizontal cross bars are located inside the upper cylindrical portion, and the spiral blade portion is located inside the lower conical cylindrical portion.

[0011] Preferably, a driven roller b is further provided in the middle of the pair of connecting diagonal rods.

[0012] Preferably, a group of support plates consists of four support plates, which are respectively fixed to the top of the front support frame and the lower part of a pair of connecting diagonal rods. A pair of reinforcing connecting plates are also obliquely provided between the rear support frame and the pair of connecting cross rods.

[0013] Preferably, the inclined unloading chute includes a connecting plate fixedly connected to a pair of vertical plates, an inclined bottom plate fixedly connected to the bottom of the connecting plate, and vertical material blocking plates arranged on both side edges of the inclined bottom plate, the upper ends of the vertical material blocking plates are fixedly connected to both sides of the connecting plate, and the length of the connecting plate is greater than the spacing between the pair of vertical plates.

[0014] Preferably, both side edges of the conveyor belt are provided with material-blocking skirts, and a plurality of right-angled triangular prisms are evenly bonded to the outer surface of the conveyor belt along its length, and the right side of the right-angled triangular prism is an inclined surface and the left side is a vertical surface, and the two sides of the right-angled triangular prism are respectively bonded to the material-blocking skirts on both side edges of the conveyor belt.

[0015] Preferably, the bracket includes an upper arc-shaped plate fixed to the bottom of the conical cylinders on both sides and a pair of support plates connected to the bottom of the upper arc-shaped plate, and a connecting reinforcement plate is fixed to the lower part of the pair of support plates.

[0016] Preferably, the rotating shaft inside the horizontal stirring box is provided with spiral blades except for the vertical stirring rod and the inclined stirring rod.

[0017] The advantages of this utility model are: an underground pre-mixing device that facilitates the feeding of fertilizer raw materials, effectively reducing the time required for subsequent mixing and agitation of blended fertilizers. The provision of auxiliary feeding and discharging mechanisms on the conveyor effectively overcomes the drawbacks of excessively concentrated fertilizer feeding and dispersed discharging on the conveyor belt. Compared to conventional mixing methods, this production line configuration ensures more uniform and efficient mixing of blended fertilizers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the premixing device.

[0019] Figure 2 Schematic diagram of the structure of multiple vertical rods on the same side horizontal crossbar.

[0020] Figure 3 Schematic diagram of the structure of the vertical rod and scraper.

[0021] Figure 4 Schematic diagram of the structure of the spiral blade part at the lower end of the stirring shaft.

[0022] Figure 5 Schematic diagram of the structure of the cross plate and grid bars.

[0023] Figure 6 This is a connection diagram of the feeding conveying device and the stirring device.

[0024] Figure 7 It is a structural diagram of the auxiliary feeding mechanism.

[0025] Figure 8 Structure diagram of auxiliary discharging mechanism.

[0026] Figure 9 Structure diagram of outer surface of conveying belt.

[0027] Figure 10 Structure diagram of right-angle triangular prism.

[0028] Figure 11 Structure diagram of stirring device.

[0029] Figure 12 Structure diagram of inside of shell.

[0030] Figure 13 Structure diagram of vertical stirring rod and poking rod.

[0031] Figure 14 Structure diagram of upper arc-shaped plate and support plate. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like in the description of the present application are only used for distinction, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the utility model, still need explaining, unless another explicit provision and limitation, if appearing term '' set '', '' connection '' should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be two element inside intercommunication. For ordinary skilled in the art, can understand the specific meaning of the above-mentioned term in the utility model with specific circumstances.

[0036] As shown in the drawings, the utility model includes premixing device, loading conveying device and stirring device which are sequentially arranged, premixing device includes stirring tank 1 which is arranged below ground and premixing motor 2 and speed reducer which are arranged at the top of stirring tank 1 and stirring shaft 3 which is arranged in stirring tank 1 and is connected with speed reducer, loading conveying device includes rack and conveying belt 31 which is arranged on it, stirring device includes horizontal stirring box body 50 and support which is arranged at the lower part thereof,

[0037] Stirring tank 1 includes upper cylindrical portion 11 and lower conical cylinder portion 12, the top of upper cylindrical portion 11 is equipped with horizontal plate 13 for personnel to tread, horizontal plate 13 is arranged through the top center of upper cylindrical portion 11, and the top of upper cylindrical portion 11 and located at both sides of horizontal plate 12 is also equipped with grid bar 14 for preventing personnel from falling, the bottom of lower conical cylinder portion 12 is equipped with discharge port 15 with valve, discharge port 15 is connected with the feed end of screw conveyor 16 which is arranged below it, the middle upper part of stirring shaft 3 is fixedly equipped with two groups of horizontal cross bars 20 which are parallel to each other, each group of horizontal cross bars 20 is composed of two horizontal cross bars which are symmetrically arranged at both sides of stirring shaft 3, the horizontal cross bars located at the same side in two groups of horizontal cross bars 20 are fixedly connected by multiple vertical rods 21, and the top end and bottom end of multiple vertical rods 21 are fixedly connected with one scraper 22 respectively, the lower end of stirring shaft 3 is located directly above discharge port 15, and the lower end of stirring shaft 3 is also equipped with spiral blade part 23 for facilitating the discharge of fertilizer mixture,

[0038] The rack comprises a front support frame 32, a rear support frame 33, and a pair of connecting horizontal rods 34 and a pair of connecting inclined rods 35 connecting the front support frame 32 and the rear support frame 33, the top ends of the front support frame 32 and the rear support frame 33 are connected by the pair of connecting inclined rods 35, the top ends of the pair of connecting inclined rods 35 are provided with driving rollers 36, and the bottom ends of the pair of connecting inclined rods 35 are provided with driven rollers a 37; the lower part of the rack is further provided with an auxiliary feeding mechanism 30 for receiving the discharge of the screw conveyor 16, the auxiliary feeding mechanism 30 comprises a group of support plates 38 fixedly connected with the top end of the front support frame 32 and the lower part of the pair of connecting inclined rods 35, a square hopper 39 fixedly connected with the top of the group of support plates 38, and a vertical rectangular cylinder part 40 arranged at the bottom of the square hopper 39 for feeding the bottom of the conveying belt 31, the square hopper 39 is located directly below the discharge port of the screw conveyor 16; the conveying belt 31 is arranged between the driving rollers 36 and the driven rollers a 37, the driving rollers 36 are driven to rotate by a conveying motor 41 arranged on the rear support frame 33; the top of the rack is provided with an auxiliary discharge mechanism, the auxiliary discharge mechanism comprises a pair of vertical plates 42 connected with the rear support frame 33 and an inclined discharge chute 43 fixedly connected therewith, and the inclined discharge chute 43 is located directly below the top of the conveying belt 31;

[0039] The horizontal stirring box body 50 comprises integrally formed two side tapered cylinders 51 and a middle cylindrical part 52, the diameter of the middle cylindrical part 52 is the same as the maximum diameter of the two side tapered cylinders 51, the side walls of the two side tapered cylinders 51 are provided with sealing plates, the sealing plates are provided with shaft holes for the passing of the rotating shaft 53, the top and bottom of the middle cylindrical part 52 are respectively provided with a feeding interface 54 for receiving the discharge of the inclined discharge chute 43 and a fertilizer outlet 55 with a discharge valve, a motor mounting seat is arranged on the support of one side of the horizontal stirring box body 50, a driving motor 56 is fixedly installed on the motor mounting seat, a motor wheel 57 is arranged on the output shaft of the driving motor 56, a bearing seat and a fixed bearing are arranged on the sealing plate of one side of the horizontal stirring box body 50, and the rotating shaft 53 is arranged to pass through the bearing seat and the fixed bearing, a belt wheel 58 is arranged at the end of the rotating shaft 53, and the belt wheel 58 and the motor wheel 57 are connected by a belt 59; the rotating shaft 53 is arranged to pass through the inside of the horizontal stirring box body 50, a pair of vertical stirring rods 60 are fixedly connected to the middle part of the rotating shaft 53 in a symmetrical manner, and two pairs of inclined stirring rods 61 are fixedly connected to the two sides of the rotating shaft 53 in a symmetrical manner, and a pushing rod 62 is fixedly connected to the end of each of the vertical stirring rods 60 and the inclined stirring rods 61.

[0040] In another technical solution, the screw conveyor 16 is arranged in an inclined manner, and the discharge end thereof is located at one side of the stirring tank 1.

[0041] In another technical solution, the middle part of the horizontal plate 13 is provided with a through hole 17 for the passing of the stirring shaft 3.

[0042] In another technical solution, the scraper 22 is a three-prism-shaped plate body.

[0043] In another technical solution, two groups of horizontal crossbars 20 are located inside the upper cylindrical part 11, and the helical blade part 23 is located inside the lower conical cylindrical part 12.

[0044] In another technical solution, the length of the vertical rod 21 is greater than the spacing between two horizontal crossbars 20 located on the same side of the two groups of horizontal crossbars 20.

[0045] In another technical solution, the middle part of the pair of connecting inclined rods 35 is also provided with a driven roller b38.

[0046] In another technical solution, one group of support plates 38 is composed of four support plates, which are respectively fixed to the top end of the front support frame 32 and the lower part of the pair of connecting inclined rods 35.

[0047] In another technical solution, the vertical rectangular cylindrical part 40 is located directly above the bottom of the conveying belt 31, facilitating the feeding of fertilizer.

[0048] In another technical solution, a pair of reinforcing connecting plates 44 are also obliquely arranged between the rear support frame 33 and the pair of connecting crossbars 34, making the frame more stable and reliable.

[0049] In another technical solution, the inclined discharge chute 43 includes a connecting plate 45 fixed to the pair of vertical plates 42, an inclined bottom plate 46 fixed to the bottom of the connecting plate 45, and vertical blocking plates 47 arranged on both sides of the inclined bottom plate 46, the upper end of the vertical blocking plates 47 being fixed to the two sides of the connecting plate 45, and the length of the connecting plate 45 being greater than the spacing between the pair of vertical plates 42, i.e. greater than the width of the conveying belt 31.

[0050] In another technical solution, the two side edges of the conveying belt 31 are provided with blocking skirts 49, and a plurality of right triangular prisms 48 are uniformly attached to the outer surface of the conveying belt 31 along its length direction, the right side of the right triangular prism 48 being an inclined surface and the left side being a vertical surface, and the two sides of the right triangular prism 48 being respectively attached to the blocking skirts 49 of the two side edges of the conveying belt 31. In another technical solution, the support frame body includes an upper arc-shaped plate 63 fixed to the bottom of the two conical cylinders 51, and a pair of support plates 64 connected to the bottom of the upper arc-shaped plate 63, and a connecting reinforcing plate 65 is also fixed to the lower part of the pair of support plates 64, making the support frame body more stable and reliable.

[0051] In another technical solution, the poking rod 62 does not contact the inner wall of the two conical cylinders 51.

[0052] In another technical solution, a helical blade 66 is arranged on the shaft 53 inside the horizontal stirring box 50, except for the positions of the vertical stirring rod 60 and the inclined stirring rod 61, to realize the stirring and mixing of the shaft part in the horizontal stirring box.

[0053] In another technical solution, the inner walls of the two side conical cylinders 51 are smooth surfaces, facilitating stirring.

[0054] Working mode: the operator will stand on the horizontal plate and put the fertilizer raw materials into the grid bars according to the proportion, the fertilizer raw materials enter the inside of the stirring tank through the gap between the grid bars, then the premixing motor and the speed reducer drive the stirring shaft to rotate, the stirring shaft drives the two groups of horizontal rods and the multiple vertical rods on them to stir, and also drives the scrapers at the top and bottom of the vertical rods to stir, after preliminary premixing, the discharge port is opened and the fertilizer mixture is discharged through the screw conveyor.

[0055] The premixed fertilizer is added into the square hopper of the auxiliary feeding mechanism by the screw conveyor, the fertilizer falls into the upper part of the conveying belt from the vertical rectangular cylinder part, is surrounded by the adjacent two right-angle triangular prisms and the material blocking skirt, and is conveyed from bottom to top under the driving of the conveying motor, after being conveyed to the upper end of the conveying belt, the fertilizer gradually slides down under the action of gravity, the right side inclined surface of the right-angle triangular prism can also form an angle for the rolling of the fertilizer, so as to avoid that the fertilizer falls too fast. The fertilizer slides to the inclined discharge chute of the auxiliary discharge mechanism, is surrounded by the inclined bottom plate and the vertical material blocking plate, and is finally sent to the subsequent stirring device.

[0056] The fertilizer of the inclined discharge chute enters into the horizontal stirring box body from the feeding interface at the top of the middle cylindrical part, then the driving motor and the belt drive the rotating shaft to rotate, and further drive the stirring rod, multiple pairs of inclined stirring rods, the stirring rod and the spiral blade on the rotating shaft, the two side conical cylinders and the middle cylindrical part are arranged, and are matched with a pair of vertical stirring rods, multiple pairs of inclined stirring rods and the stirring rod, and the spiral blade on the rotating shaft, so that the edges and the middle part of the two side conical cylinders and the middle cylindrical part can be stirred. The mixed fertilizer is finally discharged from the fertilizer outlet at the bottom of the middle cylindrical part with the discharge valve.

[0057] The above implementation cases are only for illustrating the technical solutions and characteristics of the present application, the purpose is to better enable the person skilled in the art to implement, and cannot limit the protection scope of the present application, any equivalent changes or modifications according to the spirit and essence of the present application are within the protection scope of the present application, and the unexplained part is the prior art.

Claims

1. A production line for preparing a blended fertilizer, comprising a premixing device, a feeding conveying device and a stirring device arranged in sequence, the premixing device comprising a stirring tank (1) arranged below the ground, a premixing motor (2) and a speed reducer arranged on the top of the stirring tank (1), and a stirring shaft (3) arranged in the stirring tank (1) and connected with the speed reducer, the feeding conveying device comprising a frame and a conveying belt (31) arranged on the frame, and the stirring device comprising a horizontal stirring box (50) and a support arranged at the lower part of the horizontal stirring box (50), characterized in that, the stirring tank (1) comprises an upper cylindrical part (11) and a lower conical part (12), the top of the upper cylindrical part (11) is provided with a horizontal plate (13) for people to step on, the horizontal plate (13) is arranged through the center of the top of the upper cylindrical part (11), and the top of the upper cylindrical part (11) and on both sides of the horizontal plate (12) is further provided with a grid bar (14) for preventing people from falling; the bottom of the lower conical part (12) is provided with a discharge port (15) with a valve, the discharge port (15) is connected with the feeding end of a screw conveyor (16) arranged below; the middle and upper part of the stirring shaft (3) is fixedly provided with two groups of horizontal crossbars (20) parallel to each other, each group of horizontal crossbars (20) is composed of two horizontal crossbars symmetrically arranged on both sides of the stirring shaft (3), the horizontal crossbars on the same side of the two groups of horizontal crossbars (20) are fixedly connected with a plurality of vertical rods (21), and the top end and the bottom end of the plurality of vertical rods (21) are respectively fixedly connected with a scraper (22); the lower end of the stirring shaft (3) is located directly above the discharge port (15), and the lower end of the stirring shaft (3) is further provided with a spiral blade part (23) for facilitating the discharge of the fertilizer mixture. The rack comprises a front support frame (32), a rear support frame (33), and a pair of connecting horizontal rods (34) and a pair of connecting inclined rods (35) connecting the two, the top ends of the front support frame (32) and the rear support frame (33) being connected by the pair of connecting inclined rods (35), the top ends of the pair of connecting inclined rods (35) being provided with driving rollers (36), and the bottom ends of the pair of connecting inclined rods (35) being provided with driven rollers a (37); the lower part of the rack is further provided with an auxiliary feeding mechanism (30) for receiving the discharge of the screw conveyor (16), the auxiliary feeding mechanism (30) comprising a set of support plates (38) fixedly connected with the top end of the front support frame (32) and the lower part of the pair of connecting inclined rods (35), a square hopper (39) fixedly connected with the top of the set of support plates (38), and a vertical rectangular cylindrical part (40) provided at the bottom of the square hopper (39) for feeding the bottom of the conveying belt (31), the square hopper (39) being located directly below the discharge port of the screw conveyor (16); the conveying belt (31) is provided between the driving rollers (36) and the driven rollers a (37), and the driving rollers (36) are driven to rotate by a conveying motor (41) provided on the rear support frame (33); the top of the rack is provided with an auxiliary discharge mechanism, the auxiliary discharge mechanism comprising a pair of vertical plates (42) connected with the rear support frame (33) and an inclined discharge chute (43) fixedly connected therewith, and the inclined discharge chute (43) being located directly below the top of the conveying belt (31); The horizontal stirring box body (50) comprises two integrally formed side tapered cylinders (51) and a middle cylindrical part (52), the diameter of the middle cylindrical part (52) being the same as the maximum diameter of the two side tapered cylinders (51), the side walls of the two side tapered cylinders (51) being provided with sealing plates, the sealing plates being provided with shaft holes for the passing of a rotating shaft (53), the top and bottom of the middle cylindrical part (52) being respectively provided with a feeding interface (54) for receiving the discharge of the inclined discharge chute (43) and a fertilizer outlet (55) with a discharge valve, a motor mounting seat being provided on the support of one side of the horizontal stirring box body (50), a driving motor (56) being fixedly installed on the motor mounting seat, a motor wheel (57) being provided on the output shaft of the driving motor (56), a bearing seat and a fixed bearing being provided on the sealing plate of one side of the horizontal stirring box body (50), and the rotating shaft (53) being provided through the bearing seat and the fixed bearing, the end of the rotating shaft (53) being provided with a belt wheel (58), and the belt wheel (58) and the motor wheel (57) being connected by a belt (59); the rotating shaft (53) is provided through the inside of the horizontal stirring box body (50), a pair of vertical stirring rods (60) being fixedly connected to the middle part of the rotating shaft (53) in a symmetrical manner, two pairs of inclined stirring rods (61) being fixedly connected to the two sides of the rotating shaft (53) in a symmetrical manner, and a pushing rod (62) being fixedly connected to the end of each of the vertical stirring rods (60) and the inclined stirring rods (61) in a perpendicular manner.

2. A production line for the preparation of a blended fertilizer according to claim 1, characterized in that, The screw conveyor (16) is arranged in an inclined manner, and the discharge end thereof is located on one side of the stirring tank (1).

3. A production line for the preparation of a blended fertilizer according to claim 1, characterized in that, The scraper (22) is a three-prism-shaped plate body. The scraper (22) is a three-prism-shaped plate body.

4. The production line for preparing a blended fertilizer according to claim 1, characterized in that, Two groups of horizontal crossbars (20) are located inside the upper cylindrical part (11), and the helical blade part (23) is located inside the lower conical cylindrical part (12).

5. The production line for preparing a blended fertilizer according to claim 1, characterized in that, The middle part of the pair of connecting inclined rods (35) is further provided with a driven roller b (38).

6. The production line for preparing a blended fertilizer according to claim 1, wherein, A group of support plates (38) is composed of four support plates, which are respectively fixed to the top of the front support frame (32) and the lower part of the pair of connecting inclined rods (35), and a pair of reinforcing connecting plates (44) are further provided between the rear support frame (33) and the pair of connecting crossbars (34).

7. The production line for preparing a blended fertilizer according to claim 1, characterized in that, The inclined discharge chute (43) comprises a connecting plate (45) fixed to the pair of vertical plates (42), an inclined bottom plate (46) fixed to the bottom of the connecting plate (45), and vertical blocking plates (47) provided on both sides of the inclined bottom plate (46), the upper end of the vertical blocking plate (47) being fixed to the two sides of the connecting plate (45), and the length of the connecting plate (45) being greater than the distance between the pair of vertical plates (42).

8. The production line for preparing a blended fertilizer according to claim 1, characterized in that, The conveying belt (31) is provided with a blocking skirt (49) on both sides, and a plurality of right triangular prisms (48) are uniformly attached to the outer surface of the conveying belt (31) along the length direction, the right side of the right triangular prism (48) being an inclined surface and the left side being a vertical surface, and the two sides of the right triangular prism (48) are respectively attached to the blocking skirts (49) on both sides of the conveying belt (31).

9. The production line for preparing a blended fertilizer according to claim 1, characterized in that, The bracket comprises an upper arc-shaped plate (63) fixed to the bottom of the two conical cylinders (51) and a pair of support plates (64) connected to the bottom of the upper arc-shaped plate (63), and a connecting reinforcing plate (65) is further fixed to the lower part of the pair of support plates (64).

10. The production line for preparing a blended fertilizer according to claim 1, characterized in that, The shaft (53) inside the horizontal stirring box (50) is further provided with a helical blade (66) except for the parts of the vertical stirring rod (60) and the inclined stirring rod (61).

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