Fertilizer stirrer with crushing function

Abstract

The utility model discloses a fertilizer stirrer with a crushing function. The fertilizer stirrer comprises a bracket, a stirring hopper, a blanking hopper, a conveying barrel, a rotating shaft, a spiral blade, a crushing blade, a guide plate, a stirring blade, a motor, a discharging hopper and a receiving box. A spiral blade is arranged to cut, extrude and crush fertilizer blocks for the first time; by arranging a plurality of layers of crushing blades with the blade spacing from large to small and material guide plates which are distributed with the crushing blades in a crossed and staggered manner, the fertilizer blocks are subjected to particle crushing from long to short and multiple repeated second round crushing; a plurality of layers of stirring blades are arranged to repeatedly disperse, stir and mix the fertilizer blocks for multiple rounds; meanwhile, the functions of crushing and stirring the fertilizer blocks are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers for fertilizer production equipment, in particular to a fertilizer mixer with a crushing function. Background Art

[0002] A pulverizer is a machine that crushes large solid raw materials to the desired size. It typically consists of coarse and fine crushing devices, as well as pneumatic conveying, achieving its purpose through high-speed impact. A blender, on the other hand, uses a bladed shaft rotating within a cylinder or trough to blend and mix various raw materials into a single mixture. Both pulverizers and blenders are essential equipment in organic fertilizer production lines, typically operating in two separate processes and equipment. To optimize the process and reduce costs, the pulverization and blending processes can be combined into a single process, performed within a single piece of equipment.

[0003] For example, the Chinese invention patent application CN 213467613 U discloses a vertical mixer for compound fertilizer, comprising a base, the bottom of which is fixedly connected to a support frame at an outer position. A stirring device is provided, and when working, the fertilizer is turned from the inside to the outside and from the bottom to the top inside the stirring inner cylinder, thereby improving the efficiency of compound fertilizer mixing and effectively preventing the problem of small particles settling at the bottom. At the same time, the cutting teeth are compressed to the top of the base and cut the compound fertilizer on the outer side, thereby improving the effect of compound fertilizer crushing. The coordination of the inner stirring blade and the outer stirring blade crushes and cuts the compound fertilizer at the staggered position, further improving the effect of compound fertilizer crushing, thereby facilitating the mixing of compound fertilizer, and improving the efficiency and effect of mixing, making it convenient to use fertilizer. Although the invention adopts multiple sets of cutting teeth, inner stirring blades and outer stirring blades to achieve both crushing and stirring functions, the structures of the multiple sets of cutting teeth, inner stirring blades and outer stirring blades of the invention are very complicated, and the stirring device is mainly used for stirring. How to make the crushing function and stirring function both synchronously realized in the same device is worth studying and designing. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies of the prior art and to provide a fertilizer mixer with a crushing function.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] A fertilizer mixer with a crushing function comprises a bracket, a mixing bucket, a lower hopper, a feeding cylinder, a rotating shaft, a spiral blade, a crushing blade, a material guide plate, a mixing blade, a motor, a discharging hopper and a material receiving box.

[0007] The bracket is supported by four sub-brackets erected from bottom to top, the bottoms of the four sub-brackets are welded together by square support plates, and the four sub-brackets are symmetrically distributed at 90 degrees along the center of the square.

[0008] The mixing bucket is in a hollow cylindrical shape and is arranged inside the bracket. The outer wall of the mixing bucket is supported by the four sub-brackets and welded to the tops of the four sub-brackets.

[0009] The lower hopper is a funnel with both upper and lower planes being square. The side length of the square of the upper plane of the lower hopper is greater than the side length of the square of the lower plane. The lower plane of the lower hopper is arranged in the middle of the top of the mixing bucket, and the lower plane of the lower hopper and the top of the mixing bucket are connected by welding at the junction.

[0010] The feed cylinder is a hollow cylinder, which is arranged directly below the lower hopper and is arranged downward from the top of the lower hopper; the top of the feed cylinder and the top of the lower hopper are connected by welding; on the top plane of the feed cylinder, a mounting plate is provided through the center of the top of the feed cylinder, and the mounting plate is welded to the top edge of the feed cylinder.

[0011] The rotating shaft is in the shape of a solid round rod and is arranged at the inner center of the feeding barrel. The top of the rotating shaft passes through the mounting plate and is defined by the mounting plate. The rotating shaft extends from top to bottom from the top center of the mixing bucket.

[0012] The spiral blade is a blade with a cutting edge that spirals downward. The spiral blade is arranged inside the feed barrel. The spiral blade is welded to the rotating shaft and is arranged from top to bottom along the rotating shaft. The radial outer end cutting edge of the spiral blade is tightly fitted with the inner wall of the feed barrel.

[0013] The crushing blade is a blade with a cutting edge, which is arranged directly below the feeding cylinder. The crushing blade is arranged in multiple layers from top to bottom along the rotating shaft. The radial inner end of the crushing blade is integrally formed into a circular sleeve to be engaged with the rotating shaft.

[0014] The material guide plate is a baffle that is arranged around the circumference of the inner wall of the mixing bucket, tilted downward at a certain angle, and distributed corresponding to the position of each layer of the crushing blade. The material guide plate is on the inner wall of the mixing bucket and is arranged along the axial direction of the mixing bucket. The material guide plate is welded to the inner wall of the mixing bucket.

[0015] The stirring blade is a rotary vane structure and is arranged directly below the crushing blade. The stirring blade is arranged in multiple layers from top to bottom along the rotating shaft. The radial inner end of the stirring blade is integrally formed into a circular sleeve that is engaged with the rotating shaft.

[0016] The motor is fixed on a transverse mounting plate at the bottom of the bracket. The rotating shaft passes through the bottom of the mixing bucket and extends downwards, and then is covered with a sleeve and connected to the driving shaft of the motor by a belt.

[0017] At the bottom of the mixing bucket, a rectangular discharge port is opened along the radial direction from the bottom center to the inner wall. The discharge hopper is arranged below the discharge port, and the material receiving box is located directly below the discharge hopper.

[0018] Preferably, the lower hopper, feeding cylinder, crushing blade, guide plate and stirring blade are all symmetrically arranged with the central axis of the stirring bucket as the center.

[0019] By adopting the above technical solution, the main components of the mixer can form a uniformly distributed structure, with the center and center of gravity both located on the central axis.

[0020] Preferably, the number of layers of the crushing blades is 3, and in the direction of the central axis, the spacing between adjacent rotating blades in each layer and between layers from top to bottom is 8-10 mm, 5-8 mm, and 2-5 mm respectively.

[0021] By adopting the above technical solution, the fertilizer blocks can be crushed from long to short particles from top to bottom.

[0022] Preferably, the crushing blade has a parabolic arc blade structure, and the cutting edge of the crushing blade faces the radial outer end direction of the arc.

[0023] By adopting the above technical solution, the cutting edge of the crushing blade can crush the fertilizer blocks only during the rotation process, and the crushing time on the fertilizer blocks can be longer.

[0024] Preferably, the number of crushing blades on each layer of crushing blades is 6 or 8.

[0025] The above technical solution can ensure that the crushing blades of each layer form a symmetrical structure, ensuring the uniformity and balance of the structure during rotational crushing; on the other hand, more crushing blades in each layer can ensure that the fertilizer blocks are fully cut and crushed.

[0026] Preferably, the crushing blades and the material guide plates are both multi-layer structures, and the rotating blades of each layer of the crushing blades and the material guide plates of each layer of the material guide plates are interlaced and distributed with each other.

[0027] By adopting the above technical solution, the fertilizer blocks can be repeatedly crushed, stirred, dispersed and mixed inside the mixing bucket, so that the fertilizer blocks can be crushed more evenly and fully.

[0028] Preferably, among the stirring blades, the stirring blades at the bottom layer are provided with a brush, and the bristles of the brush face toward the bottom, so as to fit closely to the bottom of the stirring bucket.

[0029] The above technical solution can prevent fertilizer lumps from piling up at the bottom of the mixing bucket, and can also enable the fertilizer lumps to be discharged from the discharging hopper more quickly.

[0030] Preferably, the number of layers of the stirring blades is 3 or more.

[0031] By adopting the above technical solution, it is possible to ensure that the fertilizer blocks are dispersed, stirred and mixed repeatedly.

[0032] Preferably, the number of stirring blades in each layer is 6 or 8.

[0033] The above technical solution can ensure that the stirring blades of each layer form a symmetrical structure, ensuring the uniformity and balance of the structure during rotation and stirring; on the other hand, more stirring blades per layer can ensure that the fertilizer blocks are fully dispersed, stirred and mixed.

[0034] The beneficial effects of the utility model are:

[0035] 1. Set the spiral blade to cut, squeeze and crush the fertilizer blocks in the first round;

[0036] 2. Multiple layers of crushing blades with varying blade spacing, and guide plates interlaced with the crushing blades, are installed to break the fertilizer lumps into smaller and longer particles, followed by repeated second rounds of crushing.

[0037] 3. Multiple layers of stirring blades are set up to disperse, stir and mix the fertilizer blocks repeatedly in multiple rounds;

[0038] 4. The multifunctional crushing and stirring mechanism of the utility model realizes the crushing and stirring functions of the fertilizer blocks at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0040] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons skilled in the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0041] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a fertilizer mixer with a crushing function.

[0042] Figure 1 Shown in: 1. Bracket, 2. Mixing bucket, 3. Lower hopper, 4. Feeding barrel, 5. Rotating shaft, 6. Spiral blade, 7. Crushing blade, 8. Guide plate, 9. Mixing blade, 10. Motor, 11. Discharge hopper, 12. Receiving box. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] The terms "left", "right", "upper", "lower" etc. used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships shall be deemed to be within the scope of implementation of the present invention without substantially changing the technical content.

[0045] Reference Figure 1 The utility model discloses a fertilizer mixer with a crushing function, which includes a bracket 1, a mixing bucket 2, a lower hopper 3, a feeding cylinder 4, a rotating shaft 5, a spiral blade 6, a crushing blade 7, a guide plate 8, a mixing blade 9, a motor 10, a discharge hopper 11, and a receiving box 12.

[0046] The bracket 1 is supported by 4 sub-brackets erected from bottom to top, and is used to support the mixer; a mixing bucket 2 is arranged inside the bracket 1, and the outer wall of the mixing bucket 2 is welded and fixed to the top of the 4 sub-brackets; a lower hopper 3 is arranged above the top of the mixing bucket 2, and the bottom of the lower hopper 3 is welded and fixed to the top of the mixing bucket 2; a feeding cylinder 4 is arranged just below the lower hopper 3, and the top of the feeding cylinder 4 is welded and fixed to the top of the mixing bucket 2; a solid round rod-shaped rotary The rotating shaft 5 is provided with a spiral blade 6 spiraling downward from top to bottom, and the spiral blade 6 is welded to the rotating shaft 5. The radial outer end edge of the spiral blade 6 is tightly fitted with the inner wall of the feeding cylinder 4; a multi-layer crushing blade 7 is arranged just below the feeding cylinder 4. The crushing blade is a parabolic arc blade structure, and the cutting edge of the crushing blade faces the radial outer end direction of the arc. The number of layers of the crushing blade 7 is 3, and the spacing between adjacent rotating blades from top to bottom is 8-10 mm, 5-8 mm, 2-5 mm, etc. mm; the radial inner end of the crushing blade 7 is integrally formed into a circular sleeve that is engaged with the rotating shaft 5; a guide plate 8 corresponding to the position of each layer of the crushing blade 7 is provided on the circumference of the inner wall of the mixing bucket 2, and the crushing blade 7 and the guide plate 8 are both multi-layer structures, and each layer of the rotating blade of the crushing blade 7 and each layer of the guide plate 8 are interlaced and staggered; the guide plate 8 is welded to the inner wall of the mixing bucket 2; a multi-layer stirring blade 9 is provided directly below the crushing blade 7, and the stirring blade 9 on the bottom layer is provided with hair. The brush is arranged with the bristles facing the bottom, tightly fitting the bottom of the mixing bucket 2. The radial inner end of the mixing blade 9 is integrally formed into a circular sleeve that is engaged with the rotating shaft 5. The motor 10 is fixed on the horizontal mounting plate at the bottom of the bracket 1, and the rotating shaft 5 extends downward through the bottom of the mixing bucket 2 and then is covered with a sleeve, and is belt-connected to the drive shaft of the motor 10. A rectangular discharge port is opened in the radial direction at the bottom of the mixing bucket 2, and a discharge hopper 11 is arranged below the discharge port, and a receiving box 12 is arranged directly below the discharge hopper 11.

[0047] The working process of the fertilizer mixer with crushing function of the utility model is as follows:

[0048] 1. Fertilizer blocks enter the feeding tube 4 from the lower hopper 3;

[0049] 2. Start the motor 10, the rotating shaft 5 starts to rotate, driving the spiral blade 6, the crushing blade 7 and the stirring blade 9 to rotate;

[0050] 3. The fertilizer blocks are cut, squeezed and crushed in the first round by the spiral blades 6 in the feeding cylinder 4;

[0051] 4. The fertilizer blocks are transported from top to bottom until they fall onto the first layer of crushing blades 7;

[0052] 5. The fertilizer blocks are cut and crushed by the first layer of crushing blades 7;

[0053] 6. After being crushed by the first layer of crushing blades 7, the fertilizer lumps are thrown onto the inner wall of the mixing bucket 2 under the action of centrifugal force. After being blocked by the guide plate 8, they fall onto the second layer of crushing blades 7;

[0054] 7. Repeat steps 5-6 until the fertilizer blocks fall onto the last layer of crushing blades 7;

[0055] 8. After being crushed by the last layer of crushing blades 7, the fertilizer lumps are thrown onto the inner wall of the mixing bucket 2 under the action of centrifugal force. After being blocked by the guide plate 8, they fall onto the first layer of mixing blades 5.

[0056] 9. After being dispersed and stirred by the first layer of stirring blades 9, the fertilizer blocks fall onto the second layer of stirring blades 9;

[0057] 10. Repeat step 9 until the fertilizer blocks fall onto the last layer of mixing blades 9;

[0058] 11. After being dispersed and stirred by the last layer of stirring blades 9, the fertilizer blocks are scrubbed by the brushes on the bottom layer of stirring blades 9, enter the discharge hopper 11 along the bottom discharge port, and then fall into the receiving box 12.

[0059] Of course, the embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A fertilizer mixer with a crushing function, characterized by: It comprises a bracket (1), a stirring bucket (2), a lower hopper (3), a feeding cylinder (4), a rotating shaft (5), a spiral blade (6), a crushing blade (7), a material guide plate (8), a stirring blade (9), a motor (10), a discharge hopper (11), and a material receiving box (12); The bracket (1) is supported by four sub-brackets erected from bottom to top, the bottoms of the four sub-brackets are welded together with square support plates, and the four sub-brackets are symmetrically distributed at 90° along the center of the square; The stirring bucket (2) is hollow and cylindrical and is arranged inside the bracket (1). The outer wall of the stirring bucket (2) is supported by the four sub-brackets and welded to the tops of the four sub-brackets. The lower hopper (3) is a funnel with both upper and lower planes being square. The side length of the square of the upper plane of the lower hopper (3) is greater than the side length of the square of the lower plane. The lower plane of the lower hopper (3) is arranged in the middle of the top of the stirring bucket (2). The lower plane of the lower hopper (3) and the top of the stirring bucket (2) are connected by welding at the junction. The feeding cylinder (4) is a hollow cylinder, and the feeding cylinder (4) is arranged directly below the lower hopper (3), and the feeding cylinder (4) is arranged downward from the top of the lower hopper (3); the top of the feeding cylinder (4) and the top of the lower hopper (3) are connected by welding; on the top plane of the feeding cylinder (4), a mounting plate is provided through the center of the top of the feeding cylinder (4), and the mounting plate is welded to the top edge of the feeding cylinder (4); The rotating shaft (5) is in the shape of a solid round rod. The rotating shaft (5) is arranged at the inner center of the feeding cylinder (4). The top of the rotating shaft (5) passes through the mounting plate and is defined by the mounting plate. The rotating shaft (5) extends downward from the top center of the mixing bucket (2). The spiral blade (6) is a blade with a cutting edge that spirals downward. The spiral blade (6) is arranged inside the feeding tube (4). The spiral blade (6) is welded to the rotating shaft and arranged from top to bottom along the rotating shaft (5). The radial outer end cutting edge of the spiral blade is tightly fitted with the inner wall of the feeding tube. The crushing blade (7) is a blade with a cutting edge and is arranged directly below the feeding cylinder (4). The crushing blade (7) is arranged in multiple layers from top to bottom along the rotating shaft (5). The radial inner end of the crushing blade (7) is integrally formed into a circular sleeve that is engaged with the rotating shaft (5). The guide plate (8) is a baffle plate that is arranged around the inner wall of the mixing bucket (2) and is tilted downward at a certain tilt angle, and is distributed corresponding to the position of each layer of the crushing blade (7). The guide plate (8) is arranged on the inner wall of the mixing bucket (2) along the axial direction of the mixing bucket (2). The guide plate (8) is welded to the inner wall of the mixing bucket (2); The stirring blade (9) is a rotary vane structure and is arranged directly below the crushing blade (7). The stirring blade (9) is arranged in multiple layers from top to bottom along the rotating shaft (5). The radial inner end of the stirring blade (9) is integrally formed into a circular sleeve and is engaged with the rotating shaft (5). The motor (10) is fixed to a horizontal mounting plate at the bottom of the bracket (1); the rotating shaft (5) passes through the bottom of the mixing bucket (2), extends downward, and is then covered with a sleeve, and is connected to the driving shaft of the motor (10) by a belt; At the bottom of the mixing bucket (2), a rectangular discharge port is opened along the radial direction from the bottom center to the inner wall. The discharge hopper (11) is arranged below the discharge port, and the receiving box (12) is located directly below the discharge hopper (11).

2. The fertilizer mixer with crushing function according to claim 1, characterized in that: The lower hopper (3), the feeding cylinder (4), the crushing blade (7), the guide plate (8), and the stirring blade (9) are all symmetrically arranged with the central axis of the stirring hopper (2) as the center.

3. The fertilizer mixer with crushing function according to claim 1, characterized in that: The number of layers of the crushing blades (7) is 3. In the direction of the central axis, the spacing between adjacent rotating blades in each layer and between layers from top to bottom is 8-10 mm, 5-8 mm, and 2-5 mm respectively.

4. The fertilizer mixer with crushing function according to claim 1, characterized in that: The crushing blade (7) is a parabolic arc blade structure, and the cutting edge of the crushing blade (7) faces the outer end direction of the arc radial direction.

5. The fertilizer mixer with crushing function according to claim 1, characterized in that: The number of the crushing blades on each layer of crushing blades (7) is 6 or 8.

6. The fertilizer mixer with crushing function according to claim 1, characterized in that: The crushing blade (7) and the guide plate (8) are both multi-layer structures, and each layer of rotating blades of the crushing blade (7) and each layer of guide plates of the guide plate (8) are interlaced and staggered.

7. The fertilizer mixer with crushing function according to claim 1, characterized in that: Among the stirring blades (9), the stirring blades (9) at the bottom layer are provided with a brush, and the hairs of the brush face toward the bottom, so as to closely fit the bottom of the stirring bucket (2).

8. The fertilizer mixer with crushing function according to claim 1, characterized in that: The number of layers of the stirring blades (9) is 3 or more.

9. The fertilizer mixer with crushing function according to claim 1, characterized in that: The number of the stirring blades (9) in each layer is 6 or 8.

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