Mixing equipment for bulk blending fertilizer

Abstract

The mixing equipment for the blended fertilizer comprises a primary premixing tank and a secondary stirring box which are sequentially arranged, the primary premixing tank comprises a stirring tank, a premixing motor, a speed reducer and a stirring shaft, the premixing motor and the speed reducer are arranged at the top of the stirring tank, and the stirring shaft is arranged in the stirring tank and connected with the speed reducer. The secondary stirring box comprises a horizontal stirring box body and a supporting frame body arranged on the lower portion of the horizontal stirring box body. The mixed fertilizer stirring device has the advantages that the stirring efficiency of mixed fertilizer is effectively improved, the stirring effect of the mixed fertilizer is guaranteed, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer production, in particular to a mixing device for blending fertilizers. Background Art

[0002] The mixing equipment used in the production of blended fertilizers generally includes a lifting device and a stirring mechanism. Directly adding ingredients to the fertilizer mix typically results in a long mixing time, so premixing the fertilizer ingredients is necessary to effectively reduce subsequent mixing time. Horizontal fertilizer mixers typically incorporate a stirring shaft and paddles directly within a cylindrical shell, or employ a double-helix stirring shaft configuration. However, these often result in insufficient mixing efficiency and prolonged mixing times. Utility Model Content

[0003] The purpose of this utility model is to provide a mixing device for blending fertilizers in order to overcome the above-mentioned shortcomings.

[0004] The utility model comprises a primary premixing tank and a secondary stirring box which are arranged in sequence. The primary premixing tank comprises a stirring tank, 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 secondary stirring box comprises a horizontal stirring box body and a supporting frame 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 horizontal mixing box includes two integrally formed conical cylinders on both sides and a central cylindrical part. The diameter of the central cylindrical part is the same as the maximum diameter of the conical cylinders on both sides. The side walls of the conical cylinders on both sides are provided with sealing plates, and the sealing plates are provided with an axial hole for the rotating shaft to pass through. The top and bottom of the central cylindrical part are respectively provided with a feeding interface for fertilizer feeding and a fertilizer discharge port with a discharge valve. The discharge end of the screw conveyor is located directly above the feeding interface; a motor mounting seat is provided on the support frame on one side of the horizontal mixing box, and a driving motor is fixedly installed on the motor mounting seat. A motor wheel is provided on the output shaft of the driving motor. A bearing seat and a fixed bearing and a rotating shaft passing therethrough are provided on the sealing plate on one side of the horizontal mixing box. A pulley is provided at the end of the rotating shaft, and the pulley and the motor wheel are connected by a belt; the rotating shaft is penetrated by the interior of the horizontal mixing box, and a pair of vertical stirring rods are symmetrically fixed to the middle of the rotating shaft, and two pairs of inclined stirring rods are symmetrically fixed to the two sides of the rotating shaft. A toggle rod is vertically fixed to the ends of the vertical stirring rod and the inclined stirring rod.

[0007] Preferably, the screw conveyor is arranged at an angle, and its discharge end is located on one side of the mixing tank.

[0008] Preferably, a through hole for the stirring shaft to pass through is provided in the middle of the transverse plate.

[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, the length of the vertical rod is greater than the distance between two horizontal cross bars located on the same side in the two groups of horizontal cross bars.

[0012] Preferably, the support frame 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.

[0013] Preferably, the toggle rod does not contact the inner walls of the tapered cylinders on both sides.

[0014] 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.

[0015] Preferably, the inner walls of the tapered cylinders on both sides are smooth.

[0016] The utility model has the advantages of effectively improving the stirring efficiency of the blended fertilizer, ensuring the stirring effect of the blended fertilizer, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural diagram of the present utility model.

[0018] Figure 2 Schematic diagram of the structure of multiple vertical rods on the same side horizontal crossbar.

[0019] Figure 3 Schematic diagram of the structure of the vertical rod and scraper.

[0020] Figure 4 Schematic diagram of the structure of the spiral blade part at the lower end of the stirring shaft.

[0021] Figure 5 Schematic diagram of the structure of the cross plate and grid bars.

[0022] Figure 6 Schematic diagram of the structure of the secondary mixing box.

[0023] Figure 7 Schematic diagram of the structure inside the shell.

[0024] Figure 8 It is a structural diagram of the vertical stirring rod and the toggle rod.

[0025] Figure 9 Schematic diagram of the structure of the upper curved plate and the support plate. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the utility model is usually placed when in use. This is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as limiting the present invention. In addition, if the terms "first", "second", etc. appear in the description of the present invention, they are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] As shown in the accompanying drawings, the present invention includes a primary premixing tank and a secondary mixing tank arranged in sequence. The primary premixing tank includes a mixing tank 1, a premixing motor 2 and a reducer arranged on the top of the mixing tank 1, and a mixing shaft 3 arranged inside the mixing tank 1 and connected to the reducer. The secondary mixing tank includes a horizontal mixing tank body 50 and a support frame arranged at the lower part thereof.

[0031] The mixing tank 1 comprises an upper cylindrical portion 11 and a lower conical cylindrical portion 12. A horizontal plate 13 for people to step on is provided on the top of the upper cylindrical portion 11. The horizontal plate 13 passes through the top center of the upper cylindrical portion 11. Grid bars 14 are provided on the top of the upper cylindrical portion 11 and on both sides of the horizontal plate 12 to prevent people from falling in. A discharge port 15 with a valve is provided at the bottom of the lower conical cylindrical portion 12. The discharge port 15 is connected to the feed end of a screw conveyor 16 provided thereunder. The stirring shaft Two sets of horizontal cross bars 20 are fixed in the middle and upper part of the stirring shaft 3, each set of horizontal cross bars 20 is composed of two horizontal cross bars symmetrically arranged on both sides of the stirring shaft 3, and a plurality of vertical rods 21 are fixed between the horizontal cross bars on the same side of the two sets of horizontal cross bars 20, and a scraper 22 is fixed to the top and bottom ends of the plurality of vertical rods 21 respectively; 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 also provided with a spiral blade portion 23 for facilitating the discharge of the fertilizer mixture;

[0032] The horizontal mixing box 50 includes an integrally formed tapered cylinder 51 on both sides and a central cylindrical portion 52. The diameter of the central cylindrical portion 52 is the same as the maximum diameter of the tapered cylinders 51 on both sides. The side walls of the tapered cylinders 51 on both sides are provided with sealing plates, and the sealing plates are provided with shaft holes for the rotation shaft 53 to pass through. The top and bottom of the central cylindrical portion 52 are respectively provided with a feeding interface 54 for feeding fertilizer and a fertilizer discharge port 55 with a discharge valve. The discharge end of the screw conveyor 16 is located directly above the feeding interface 54. A motor mounting seat is provided on the support frame on one side of the horizontal mixing box 50, and a A driving motor 56 is provided, and a motor wheel 57 is provided on the output shaft of the driving motor 56. A bearing seat and a fixed bearing and a rotating shaft 53 passing through the sealing plate on one side of the horizontal mixing box 50 are provided, and a pulley 58 is provided at the end of the rotating shaft 53. The pulley 58 and the motor wheel 57 are connected by a belt 59. The interior of the horizontal mixing box 50 is penetrated by the rotating shaft 53, and a pair of vertical stirring rods 60 are symmetrically fixed in the middle of the rotating shaft 53. Two pairs of inclined stirring rods 61 are symmetrically fixed on both sides of the rotating shaft 53. The ends of the vertical stirring rod 60 and the inclined stirring rod 61 are vertically fixed with a toggle rod 62.

[0033] In another technical solution, the screw conveyor 16 is arranged at an angle, and its discharge end is located on one side of the mixing tank 1 .

[0034] In another technical solution, a through hole 17 for the stirring shaft 3 to pass through is provided in the middle of the transverse plate 13 .

[0035] In another technical solution, the scraper 22 is a triangular prism-shaped plate.

[0036] In another technical solution, the two groups of horizontal cross bars 20 are located inside the upper cylindrical portion 11 , and the spiral blade portion 23 is located inside the lower conical cylindrical portion 12 .

[0037] In another technical solution, the length of the vertical rod 21 is greater than the distance between two horizontal cross bars on the same side in the two groups of horizontal cross bars 20 .

[0038] In another technical solution, the support frame includes an upper arc-shaped plate 63 fixed to the bottom of the conical cylinders 51 on both sides and a pair of support plates 64 connected to the bottom of the upper arc-shaped plate 63. The lower part of the pair of support plates 64 is also fixed with a connecting reinforcement plate 65, making the support frame more stable and reliable.

[0039] In another technical solution, the toggle rod 62 does not contact the inner walls of the conical cylinders 51 on both sides.

[0040] In another technical solution, the rotating shaft 53 inside the horizontal stirring box 50 is provided with spiral blades 66 in addition to the vertical stirring rod 60 and the inclined stirring rod 61, so as to achieve stirring and mixing at the central axis of the horizontal stirring box.

[0041] In another technical solution, the inner walls of the conical cylinders 51 on both sides are smooth to facilitate stirring.

[0042] Working method: The operator will stand on the horizontal plate of the primary premixing tank on the second floor (level with the second floor floor, with a gap on the second floor floor for the horizontal plate to be embedded), and put the mixed fertilizer raw materials into the grid bars in proportion. The fertilizer raw materials enter the mixing tank through the gaps between the grid bars, and then the premixing motor and the reducer drive the stirring shaft to rotate. The stirring shaft then drives two sets of horizontal cross bars and multiple vertical rods thereon 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 a screw conveyor. The screw conveyor discharges material from the feed port at the top of the central cylindrical section into the horizontal mixing chamber (located on the ground floor). A drive motor and belt then drive the rotating shaft, which in turn drives the stirring rods, multiple pairs of inclined stirring rods, a toggle lever, and the spiral blades on the rotating shaft. The tapered barrels on both sides and the central barrel are combined with a pair of vertical stirring rods, multiple pairs of inclined stirring rods, a toggle lever, and the spiral blades on the rotating shaft to achieve mixing at the edges and center of the tapered barrels and the central barrel. The mixed fertilizer is finally discharged from a fertilizer outlet with a discharge valve at the bottom of the central barrel.

[0043] The above implementation cases are only for illustrating the technical solutions and features of the utility model, and their purpose is to enable people familiar with the technology to implement them better. They cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model are within the scope of protection of the utility model. Those not described in detail are prior art.

Claims

1. A mixing device for blending fertilizers, comprising a primary premixing tank and a secondary mixing box arranged in sequence, wherein the primary premixing tank comprises a mixing tank (1), a premixing motor (2) and a reducer arranged on the top of the mixing tank (1), and a mixing shaft (3) arranged inside the mixing tank (1) and connected to the reducer, and the secondary mixing box comprises a horizontal mixing box body (50) and a support frame arranged at the lower part thereof, characterized in that: The mixing tank (1) comprises an upper cylindrical portion (11) and a lower conical cylindrical portion (12); a horizontal plate (13) for people to step on is provided on the top of the upper cylindrical portion (11); the horizontal plate (13) passes through the top center of the upper cylindrical portion (11); grid bars (14) are provided on the top of the upper cylindrical portion (11) and on both sides of the horizontal plate (12) to prevent people from falling in; a discharge port (15) with a valve is provided at the bottom of the lower conical cylindrical portion (12); the discharge port (15) is connected to the feed end of a screw conveyor (16) provided thereunder; the mixing tank (1) comprises an upper cylindrical portion (11) and a lower conical cylindrical portion (12); a lower conical cylindrical portion (12) comprises ... Two sets of mutually parallel horizontal cross bars (20) are fixedly provided at the middle and upper part of the mixing shaft (3), and each set of horizontal cross bars (20) is composed of two horizontal cross bars symmetrically arranged on both sides of the mixing shaft (3). A plurality of vertical bars (21) are fixedly connected between the horizontal cross bars on the same side of the two sets of horizontal cross bars (20), and a scraper (22) is fixedly connected to the top and bottom ends of the plurality of vertical bars (21); the lower end of the mixing shaft (3) is located directly above the discharge port (15), and the lower end of the mixing shaft (3) is also provided with a spiral blade portion (23) for facilitating the discharge of the fertilizer mixture; The horizontal mixing box (50) comprises two integrally formed tapered cylinders (51) on both sides and a central cylindrical portion (52). The diameter of the central cylindrical portion (52) is the same as the maximum diameter of the tapered cylinders (51) on both sides. The side walls of the tapered cylinders (51) on both sides are provided with sealing plates, and the sealing plates are provided with shaft holes for the rotation shaft (53) to pass through. The top and bottom of the central cylindrical portion (52) are respectively provided with a feed interface (54) for feeding fertilizer and a fertilizer discharge port (55) with a discharge valve. The discharge end of the screw conveyor (16) is located directly above the feed interface (54). A motor mounting seat is provided on the support frame on one side of the horizontal mixing box (50), and a drive motor (55) is fixedly installed on the motor mounting seat. 6), a motor wheel (57) is provided on the output shaft of the driving motor (56), a bearing seat and a fixed bearing and a rotating shaft (53) passing through the sealing plate on one side of the horizontal stirring box (50) are provided, and a pulley (58) is provided at the end of the rotating shaft (53), and the pulley (58) and the motor wheel (57) are connected by a belt (59); the interior of the horizontal stirring box (50) is penetrated by the rotating shaft (53), a pair of vertical stirring rods (60) are symmetrically fixed in the middle of the rotating shaft (53), and two pairs of inclined stirring rods (61) are symmetrically fixed on both sides of the rotating shaft (53), and the ends of the vertical stirring rod (60) and the inclined stirring rod (61) are vertically fixed with a toggle rod (62).

2. A mixing device for blending fertilizers according to claim 1, characterized in that: The screw conveyor (16) is arranged obliquely, and its discharge end is located on one side of the stirring tank (1).

3. A mixing device for blending fertilizers according to claim 1, characterized in that: A through hole (17) for the stirring shaft (3) to pass through is provided in the middle of the transverse plate (13).

4. A fertilizer mixing device according to claim 1, characterized in that: The scraper (22) is a triangular prism-shaped plate.

5. A fertilizer mixing device according to claim 1, characterized in that: The two groups of horizontal cross bars (20) are located inside the upper cylindrical portion (11), and the spiral blade portion (23) is located inside the lower conical cylindrical portion (12).

6. A fertilizer mixing device according to claim 1, characterized in that: The length of the vertical rod (21) is greater than the distance between two horizontal cross bars (20) located on the same side.

7. A mixing device for blending fertilizers according to claim 1, characterized in that: The support frame comprises an upper arc-shaped plate (63) fixedly connected to the bottom of the conical cylinders (51) on both sides and a pair of support plates (64) connected to the bottom of the upper arc-shaped plate (63). The lower parts of the pair of support plates (64) are also fixedly connected to a connecting reinforcement plate (65).

8. A fertilizer mixing device according to claim 1, characterized in that: The toggle rod (62) does not contact the inner walls of the tapered cylinders (51) on both sides.

9. A mixing device for blending fertilizers according to claim 1, characterized in that: The rotating shaft (53) inside the horizontal stirring box (50) is further provided with spiral blades (66) except for the vertical stirring rod (60) and the inclined stirring rod (61).

10. The fertilizer mixing device according to claim 1, characterized in that: The inner walls of the tapered cylinders (51) on both sides are smooth surfaces.

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