Premixing, feeding and conveying equipment for bulk blending fertilizer

Abstract

A premixing, feeding and conveying device for bulk blending fertilizer comprises a premixing device and a feeding and conveying device, the premixing device comprises a stirring tank arranged under the ground, a premixing motor, a speed reducer, a stirring shaft and the feeding and conveying device, the premixing motor and the speed reducer are arranged at the top of the stirring tank, and the stirring shaft and the feeding and conveying device are arranged in the stirring tank and connected with the speed reducer. Comprising a rack and a conveying belt arranged on the rack. The stirring tank comprises an upper cylinder part and a lower conical cylinder part, a transverse plate for people to tread is arranged at the top of the upper cylinder part and penetrates through the center of the top of the upper cylinder part, and grid strips for preventing people from falling into the stirring tank are further arranged at the top of the upper cylinder part and located on the two sides of the transverse plate. The utility model has the advantages that the underground device which has a premixing function and is convenient for feeding fertilizer raw materials reduces the stirring and mixing time of subsequent mixed fertilizer production. 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.

Description

TECHNICAL FIELD

[0001] The utility model relates to fertilizer production technical field, concretely relates to a premixing feeding and conveying equipment for mixed fertilizer. BACKGROUND

[0002] The mixing equipment in the production process of mixed fertilizer generally comprises a lifting device and a stirring device, and the height of the stirring device is usually high. When feeding, workers need to lift the fertilizer raw materials to a high place and then put them into the feeding hopper of the stirring device. The stirring time is usually long when feeding directly through the conveying device. Therefore, it is necessary to premix the fertilizer raw materials to effectively reduce the mixing time in the subsequent production of mixed fertilizer. The height of the stirring device is usually high. When feeding, workers need to lift the fertilizer raw materials to a high place and then put them into the feeding hopper of the stirring device. The existing fertilizer feeding and conveying device does not have a mechanism for assisting feeding and discharging, and feeding and discharging are directly performed by gravity. This often causes the feeding of the conveying belt to be too concentrated, and the discharging to be too dispersed. SUMMARY

[0003] The utility model aims at the above-mentioned deficiencies and provides a premixing feeding and conveying equipment for mixed fertilizer.

[0004] The utility model discloses a premixing device and a feeding and conveying device. The premixing device is arranged below the ground, the stirring tank, the premixing motor arranged on the top of the stirring tank, the reducer, the stirring shaft arranged in the stirring tank and connected with the reducer, the feeding and conveying device, the rack and the conveying belt arranged on the rack.

[0005] The stirring tank comprises an upper cylindrical part and a lower conical part. The top of the upper cylindrical part is provided with a horizontal plate for people to tread. The horizontal plate is arranged through the center of the top of the upper cylindrical part. The top of the upper cylindrical part 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 part is provided with a discharge port with a valve. The discharge port is connected with the feeding end of the screw conveyor arranged below. The middle and upper part of the stirring shaft is fixedly provided with two groups of horizontal crossbars parallel to each other. Each group of horizontal crossbars is composed of two horizontal crossbars symmetrically arranged on both sides of the stirring shaft. The horizontal crossbars on the same side of the two groups of horizontal crossbars are fixedly connected by a plurality of vertical rods. The top end and the bottom end of the plurality of vertical rods are fixedly connected with a scraper respectively. The lower end of the stirring shaft is located directly above the discharge port, and the lower end of the stirring shaft is also provided with a spiral blade part for discharging the fertilizer mixture.

[0006] The rack comprises a front support frame, a rear support frame, and a pair of connecting horizontal rods and a pair of connecting inclined rods connecting the two, the top ends of the front support frame and the rear support frame are connected by the pair of connecting inclined rods, the top ends of the pair of connecting inclined rods are provided with driving rollers, and the bottom ends of the pair of connecting inclined rods are provided with driven rollers a; the lower part of the rack is further provided with an auxiliary feeding mechanism, the auxiliary feeding mechanism comprises a group of support plates fixedly connected with the top end of the front support frame and the lower part of the pair of connecting inclined rods, a square hopper fixedly connected with the top of the group of support plates, and a vertical rectangular cylinder part arranged at the bottom of the square hopper for feeding the bottom of the conveying belt; the conveying belt is arranged between the driving rollers and the driven rollers a, and the driving rollers are driven to rotate by a conveying motor arranged on the rear support frame; the top of the rack is provided with an auxiliary discharging mechanism, the auxiliary discharging mechanism comprises a pair of vertical plates connected with the rear support frame and an inclined discharging chute fixedly connected with the vertical plates, and the inclined discharging chute is located directly below the top of the conveying belt.

[0007] Preferably, the screw conveyor is arranged obliquely, and the discharging end thereof is located on one side of the stirring tank.

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

[0009] Preferably, the scraper is a triangular prism plate body, two groups of horizontal rods are arranged inside the upper cylindrical part, and the spiral blade part is arranged inside the lower conical cylindrical part.

[0010] Preferably, the length of the vertical rod is greater than the distance between two horizontal rods located on the same side of the two groups of horizontal rods.

[0011] Preferably, the middle part of the pair of connecting inclined rods is further provided with a driven roller b.

[0012] Preferably, the group of support plates comprises four support plates, and the four support plates are respectively fixedly connected with the top end of the front support frame and the lower part of the pair of connecting inclined rods.

[0013] Preferably, the vertical rectangular cylinder part is located directly above the bottom of the conveying belt, and a pair of reinforcing connecting plates are further arranged obliquely between the rear support frame and the pair of connecting horizontal rods.

[0014] Preferably, the inclined discharging chute comprises a connecting plate fixedly connected with the pair of vertical plates, an inclined bottom plate fixedly connected with the bottom of the connecting plate, and vertical blocking plates arranged at the two side edges of the inclined bottom plate, the upper ends of the vertical blocking plates are fixedly connected with the two sides of the connecting plate, and the length of the connecting plate is greater than the distance between the pair of vertical plates.

[0015] Preferably, the conveying belt is provided with a material blocking skirt on both sides, and a plurality of right triangular prisms are uniformly attached on the outer surface of the conveying belt along the length direction, and the right side of the right triangular prism is an inclined surface and the left side is a vertical surface, and the two sides of the right triangular prism are respectively attached with the material blocking skirts on both sides of the conveying belt.

[0016] The device has the advantages that the device with the premixing function is convenient for feeding of fertilizer raw materials, and can effectively reduce the mixing time of subsequent mixed fertilizer production. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 4 is a structural schematic view of the premixing device.

[0018] Figure 2 Fig. 5 is a structural schematic view of a plurality of vertical rods on the same side horizontal cross bar.

[0019] Figure 3 Fig. 6 is a structural schematic view of the vertical rod and the scraper.

[0020] Figure 4 Fig. 7 is a structural schematic view of the spiral blade part at the lower end of the stirring shaft.

[0021] Figure 5 Fig. 8 is a structural schematic view of the horizontal plate and the grid bar.

[0022] Figure 6 Fig. 9 is a structural schematic view of the feeding conveying device.

[0023] Figure 7 Fig. 10 is a structural schematic view of the auxiliary feeding mechanism.

[0024] Figure 8 Fig. 11 is a structural schematic view of the auxiliary discharging mechanism.

[0025] Figure 9 Fig. 12 is a structural schematic view of the outer surface of the conveying belt.

[0026] Figure 10 Fig. 13 is a structural schematic view of the right triangular prism. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application. It should be noted that: similar reference numbers 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 and explained in subsequent drawings.

[0029] In the description of the embodiments of the application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the application when it is usually placed, which is only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second" and the like in the description of the application are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] In the description of the embodiments of the application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "set", "connected" are broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0031] As shown in the drawings, the application comprises a premixing device and a feeding conveying device, the premixing device is provided below the ground in a stirring tank 1, a premixing motor 2 and a speed reducer are arranged on the top of the stirring tank 1, a stirring shaft 3 is arranged in the stirring tank 1 and connected with the speed reducer, the feeding conveying device comprises a rack and a conveying belt 31 arranged thereon;

[0032] 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 tread, 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 which are parallel to each other, each group of horizontal crossbars 20 is composed of two horizontal crossbars which are 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 bars 21, and the top end and the bottom end of the plurality of vertical bars 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.

[0033] The rack comprises a front support frame 32, a rear support frame 33 and a pair of connecting crossbars 34 and a pair of connecting inclined bars 35 connecting the two, the top ends of the front support frame 32 and the rear support frame 33 are connected by the pair of connecting inclined bars 35, the top end of the pair of connecting inclined bars 35 is provided with a driving roller 36, and the bottom end of the pair of connecting inclined bars 35 is provided with a driven roller a 37; the lower part of the rack is further provided with an auxiliary feeding mechanism 30, the auxiliary feeding mechanism 30 comprises a group of support plates 38 fixedly connected with the top of the front support frame 32 and the lower part of the pair of connecting inclined bars 35, a square hopper 39 fixedly connected with the top of the group of support plates 38, and a vertical rectangular cylindrical part 40 arranged at the bottom of the square hopper 39 for feeding the bottom of the conveying belt 31; the conveying belt 31 is arranged between the driving roller 36 and the driven roller a 37, and the driving roller 36 is 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 discharging mechanism, the auxiliary discharging 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.

[0034] In another technical scheme, the screw conveyor 16 is arranged obliquely, and the discharge end thereof is located on one side of the stirring tank 1.

[0035] In another technical scheme, the middle part of the horizontal plate 13 is provided with a through hole 17 for the stirring shaft 3 to pass through.

[0036] In another technical scheme, the scraper 22 is a three-prism plate body.

[0037] In another technical scheme, the two groups of horizontal crossbars 20 are located inside the upper cylindrical part 11, and the spiral blade part 23 is located inside the lower conical part 12.

[0038] In another technical solution, the length of the vertical rod 21 is greater than the distance between two horizontal rods 20 located on the same side of the two groups of horizontal rods.

[0039] In another technical solution, the middle part of the pair of connecting inclined rods 35 is further provided with a driven roller b38.

[0040] In another technical solution, the 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.

[0041] In another technical solution, the vertical rectangular cylinder part 40 is located directly above the bottom of the conveying belt 31, which facilitates the feeding of the fertilizer.

[0042] In another technical solution, a pair of reinforcing connecting plates 44 are obliquely arranged between the rear support frame 33 and the pair of connecting inclined rods 34, which makes the frame more stable and reliable.

[0043] 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 distance between the pair of vertical plates 42, i.e. greater than the width of the conveying belt 31.

[0044] In another technical solution, 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 skirt 49 on both sides of the conveying belt 31.

[0045] Working mode: the operator will stand on the cross plate 13 to put the fertilizer raw material into the grid strip 14 according to the proportion, the fertilizer raw material enters the inside of the stirring tank 1 through the gap between the grid strips 14, then the pre-mixing motor 2 and the reducer drive the stirring shaft 3 to rotate, the stirring shaft drives two groups of horizontal cross bars 20 and the multiple vertical bars 21 on the horizontal cross bars 20 to stir, and also drives the scrapers 22 at the top and bottom of the vertical bars 21 to stir, after the preliminary premixing, the discharge port 15 is opened and the fertilizer mixture is discharged through the screw conveyor 16. The screw conveyor 16 adds the premixed fertilizer from the square hopper 39 of the auxiliary feeding mechanism, the fertilizer falls into the upper side of the conveying belt 31 from the vertical rectangular cylinder part 40, is surrounded by the adjacent two right-angle triangular prisms 48 and the material blocking skirt 49, and is conveyed from bottom to top under the driving of the conveying motor 41, after being conveyed to the upper end of the conveying belt 31, the fertilizer gradually slides down under the action of gravity, the right side of the right-angle triangular prism 48 also forms an angle for the fertilizer to roll down, so that the fertilizer does not fall too fast. The fertilizer slides to the inclined discharge chute 43 of the auxiliary discharge mechanism, is surrounded by the inclined bottom plate 46 and the vertical material blocking plate 47, and is finally sent to the subsequent stirring and mixing device to complete the mixing. Through the setting of the auxiliary feeding mechanism and the auxiliary discharge mechanism of the conveying device, the defects that the fertilizer is too concentrated when being fed and the fertilizer is too dispersed when being discharged are effectively overcome.

[0046] The above implementation cases are only for illustrating the technical solutions and characteristics of the present application, and 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 made according to the spirit and essence of the present application are within the protection scope of the present application, and the existing technology which is not described in detail is the existing technology.

Claims

1. A premixing and feeding device for fertilizer blending, comprising a premixing device and a feeding device, the premixing device is arranged in a mixing tank (1) below the ground, a premixing motor (2) and a speed reducer arranged on the top of the mixing tank (1), and a mixing shaft (3) arranged in the mixing tank (1) and connected with the speed reducer, the feeding device comprises a frame and a conveyor belt (31) arranged on the frame, characterized in that, the mixing 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 grid bars (14) to prevent people from falling in; 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 mixing shaft (3) is fixedly provided with two groups of horizontal cross bars (20) parallel to each other, each group of horizontal cross bars (20) is composed of two horizontal cross bars symmetrically arranged on both sides of the mixing shaft (3), the horizontal cross bars on the same side of the two groups of horizontal cross bars (20) are fixedly connected by a plurality of vertical bars (21), and the top end and the bottom end of the plurality of vertical bars (21) are respectively fixedly connected with a scraper (22); 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 further provided with a spiral blade part (23) for facilitating the discharge of the fertilizer mixture; the frame comprises a front support frame (32), a rear support frame (33), and a pair of connecting cross bars (34) and a pair of connecting inclined bars (35) connecting the two; the top ends of the front support frame (32) and the rear support frame (33) are connected by the pair of connecting inclined bars (35), the top end of the pair of connecting inclined bars (35) is provided with a driving roller (36), and the bottom end of the pair of connecting inclined bars (35) is provided with a driven roller a (37); the lower part of the frame is further provided with an auxiliary feeding mechanism (30), 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 bars (35) vertically, a square hopper (39) fixedly connected with the top of the group of support plates (38), and a vertical rectangular cylindrical part (40) arranged at the bottom of the square hopper (39) for feeding the bottom of the conveyor belt (31); the conveyor belt (31) is arranged between the driving roller (36) and the driven roller a (37), and the driving roller (36) is driven to rotate by a conveying motor (41) arranged on the rear support frame (33); the top of the frame 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 conveyor belt (31).

2. The pre-mixed material feeding and conveying device for the blended fertilizer according to claim 1, characterized in that, The screw conveyor (16) is arranged obliquely, and the discharge end thereof is located on one side of the mixing tank (1).

3. The pre-mixed material feeding and conveying device for the blended fertilizer according to claim 1, characterized in that, The middle part of the horizontal plate (13) is provided with a through hole (17) for the mixing shaft (3) to pass through.

4. The pre-mixed material feeding and conveying device for the blended fertilizer according to claim 1, characterized in that, The scraper (22) is a triangular prism plate body, two groups of horizontal crossbars (20) are located inside the upper cylindrical part (11), and the spiral blade part (23) is located inside the lower conical cylindrical part (12).

5. The pre-mixed material feeding and conveying device for the blended fertilizer according to claim 1, characterized in that, The length of the vertical rod (21) is greater than the distance between two horizontal crossbars (20) located on the same side.

6. The pre-mixed material feeding and conveying device for the blended fertilizer according to claim 1, characterized in that, The middle part of the pair of connecting inclined rods (35) is also provided with a driven roller b (38).

7. The pre-mixed material feeding and conveying device for the blended fertilizer according to claim 1, characterized in that, 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).

8. The pre-mixed material feeding and conveying device for the blended fertilizer according to claim 1, characterized in that, The vertical rectangular cylindrical part (40) is located directly above the bottom of the conveying belt (31), and a pair of reinforcing connecting plates (44) are also inclinedly arranged between the rear support frame (33) and the pair of connecting crossbars (34).

9. The pre-mixed material feeding and conveying device for the blended fertilizer according to claim 1, characterized in that, The inclined discharge chute (43) comprises a connecting plate (45) fixed to a 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 plate (47) is fixed to the two sides of the connecting plate (45), and the length of the connecting plate (45) is greater than the distance between the pair of vertical plates (42).

10. The pre-mixed material feeding and conveying device for the blended fertilizer according to claim 1, characterized in that, 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 the length direction, the right side of the right triangular prism (48) is an inclined surface, and the left side is a vertical surface, and the two sides of the right triangular prism (48) are respectively attached to the blocking skirts (49) of the two side edges of the conveying belt (31).

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