Pelletizing cylinder for producing phosphate fertilizer

Abstract

The utility model provides a granulation cylinder for producing phosphate fertilizer, which comprises a horizontally arranged cylindrical cylinder body, a feed port arranged at the top end of the cylinder, a bracket arranged on the cylinder body, a granulation device arranged in the middle of the cylinder body, and a discharge port arranged on one side of the bottom of the cylinder, the granulating device comprises a granulating plate, a rotating device and a granulating roller; the granulation plate is of a circular-ring-shaped plate-shaped structure, the section of the granulation plate in the direction of the radius of a circular ring is an arc, and in addition, a plurality of granulation holes are formed in the granulation plate; the rotating device comprises a driving device arranged at the circle center of the granulation plate and further comprises a rotating seat arranged on the driving device, symmetrical rotating shafts are horizontally arranged on the two sides of the rotating seat, and the rotating seat coaxially and horizontally rotates relative to the granulation plate; the granulation rollers are symmetrically arranged on the two sides of the rotating seat, the granulation rollers on the two sides are coaxial and can rotate along with rotation of the rotating seat, and the shapes of the granulation rollers are matched with the arcs of the granulation plates so as to extrude phosphate fertilizer particles.

Description

Technical Field

[0001] The utility model relates to the field of granulators, in particular to a granulating cylinder for phosphate fertilizer production. Background Art

[0002] Phosphate fertilizers are primarily nutrient-rich fertilizers. The magnitude (significance) and speed of their effectiveness depend on the effective phosphorus pentoxide content, soil properties, fertilization method, and crop type.

[0003] A granulation drum is used in the production process of phosphate fertilizer. For example, Chinese patent application number CN202322839516.2 discloses a granulation drum for phosphate fertilizer production, which includes a drum body, a granulation plate fixed inside the drum body, a plurality of granulation holes formed on the granulation plate, a runner slidably provided on the granulation plate, a striker fixed to the outer wall of the runner cooperating with the granulation holes, a sliding assembly for driving the runner to move is provided at the top of the granulation plate, and the runner is connected to the granulation plate via a rotating assembly. After the phosphate fertilizer is formed in the granulation holes, the movement of the electric telescopic rod first drives the movement of the first slider, which drives the horizontal movement of the runner via the support block. At the same time, the engagement of the gear and the rack drives the rotation of the runner. The runner drives the rotation of the striker, which can push the phosphate fertilizer particles and eject the phosphate fertilizer particles from the granulation holes, thereby facilitating the rapid discharge of the phosphate fertilizer particles, facilitating the discharging of the phosphate fertilizer particles, and improving the discharging efficiency of the phosphate fertilizer particles.

[0004] However, the above-mentioned prior art has the following problems: 1. The granulation plate is rectangular, which does not fully utilize the space within the cylindrical barrel. 2. The granulation plate is flat, and the striker, when moving to push the phosphate fertilizer particles, is prone to pushing the phosphate fertilizer particles to one side of the granulation plate. During the striker's reciprocating motion, the striker is unable to interfere with the phosphate fertilizer particles, which may cause a large amount of phosphate fertilizer particles to accumulate on one side of the granulation plate, thus wasting a large amount of phosphate fertilizer raw materials. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model proposes a granulating cylinder for phosphate fertilizer production, which can improve the space utilization rate of the granulating cylinder and avoid the problem of phosphate fertilizer accumulation caused by the impact rod during movement.

[0006] The technical solution is as follows:

[0007] A granulating drum for phosphate fertilizer production comprises a horizontally arranged cylindrical drum body, a material inlet arranged at the top of the drum body, a bracket arranged on the drum body, a granulating device arranged inside the drum body, and a material outlet arranged at one side of the bottom of the drum body.

[0008] The granulating device includes a granulating plate, a rotating device, a granulating roller and a scraper;

[0009] The granulation plate is a circular plate structure, and the surface of the granulation plate is a downwardly concave arc surface. In addition, a plurality of granulation holes are opened on the granulation plate;

[0010] The rotating device includes a driving device vertically arranged at the center of the granulation plate, the driving device includes a driving shaft that passes through the bottom of the cylinder body and is coaxial with the cylinder body, the driving shaft is driven by a motor arranged at the bottom of the cylinder body, a rotating seat is coaxially mounted on the top of the driving shaft, symmetrical rotating shafts are horizontally arranged on both sides of the rotating seat, and the rotating seat rotates coaxially horizontally relative to the granulation plate under the drive of the driving shaft;

[0011] The granulation roller is coaxially sleeved on the rotating shaft, and the granulation roller can rotate horizontally around the center of the granulation plate under the drive of the rotation of the rotating seat. At the same time, the granulation roller is on the rotating shaft, and the surface of the granulation roller is spindle-shaped and protruding, and its shape is consistent with the downward concave arc of the granulation plate, so as to extrude the phosphate fertilizer particles.

[0012] The scrapers are horizontally arranged on both sides of the rotating shaft and are against the bottom of the granulation plate, and can scrape off the extruded phosphate fertilizer particles driven by the rotating shaft.

[0013] Furthermore, the inner periphery of the granulation plate is provided with teeth arranged in a concentric annular array with the granulation plate, and the granulation rollers are respectively provided with gear rings engaged with the teeth. When the rotating seat rotates, the granulation rollers rotate with the rotating axis as the axis through the engaged teeth and gear rings.

[0014] Furthermore, the interior of the granulation roller is a hollow structure.

[0015] Furthermore, limiting rings are provided at both ends of the granulating roller to limit the displacement of the granulating roller.

[0016] Furthermore, an annular slider track is provided on the outer periphery of the granulation plate, and the annular track has the same center as the granulation plate. A slider is provided at one end of the rotating shaft away from the rotating seat, and the slider is slidably arranged in the slider track, and a limiting flange is provided on the inner wall of the cylinder body, and the limiting flange is provided above the slider to limit the slider.

[0017] Furthermore, a dust-blocking brush is provided on one side of the limiting flange close to the center of the granulation plate. The dust-blocking brush will not affect the rotation of the rotating shaft and can prevent the phosphate fertilizer from entering the slider track.

[0018] Furthermore, the bottom of the cylinder body is in a cone shape that is inclined to one side and protrudes outward from the cylinder body, and a discharge port is provided at the top of the cone.

[0019] Furthermore, a dust shield is provided on the rotating seat, which can shield the gear ring and the gear portion.

[0020] The utility model has the following beneficial effects: 1. The rectangular granulation plate in the prior art is improved into an annular granulation plate, so that more space can be utilized in the internal space of the cylindrical barrel; 2. The cross-section of the granulation plate along its radial direction is a downwardly concave arc, which can gather the phosphate fertilizer particles at the bottom of the concave state, so that they will not be pushed to the sides of the granulation roller and cannot be pressed by the granulation roller; 3. The shape of the granulation roller is a shuttle-shaped roller that matches the above arc, which can better crush the phosphate fertilizer particles; 4. Two granulation rollers are provided, which are located on both sides of the rotating seat, thereby improving the production efficiency of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the overall appearance structure diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the relative positions of the granulating plate, rotating device, and granulating roller of the utility model;

[0023] Figure 3 It is a two-dimensional wireframe diagram of the granulation board of the utility model;

[0024] Figure 4 This is a structural diagram of the rotating device of the utility model;

[0025] Figure 5 This is the structural diagram of the granulation board of the utility model;

[0026] Figure 6 This is a schematic diagram of the dust-blocking brush of the utility model;

[0027] Figure 7 This is a schematic diagram of the drive device of the utility model.

[0028] In the above drawings: cylinder body 1, feed port 2, bracket 3, discharge port 4, granulation plate 5, granulation roller 6, granulation hole 51, rotating seat 71, rotating shaft 712, tooth portion 81, gear ring 82, limit ring 72, annular track 91, slider 92, limit flange 93, dust shield brush 94, drive shaft 73, motor 74, cone 11, dust shield plate 711, scraper 52. DETAILED DESCRIPTION

[0029] The utility model is described below with reference to the accompanying drawings:

[0030] like Figure 1 Figure 2 Figure 3 Figure 4 As shown, a granulating cylinder for phosphate fertilizer production includes a horizontally arranged cylindrical cylinder body 1, an inlet 2 arranged at the top of the cylinder body, and a bracket 3 arranged on the cylinder body 1. It is characterized in that it also includes a granulating device arranged inside the cylinder body 1 and a discharge port 4 arranged on one side of the bottom of the cylinder;

[0031] The granulation device includes a granulation plate 5, a rotating device, a granulation roller 6 and a scraper 52;

[0032] The granulation plate 5 is a circular plate structure, and the surface of the granulation plate 5 is a downwardly concave arc surface. In addition, a plurality of granulation holes 51 are opened on the granulation plate 5;

[0033] like Figure 1 and Figure 2 as well as Figure 5 As shown, the rotating device includes a drive device vertically arranged at the center of the granulation plate 5. The drive device includes a drive shaft 73 that extends through the bottom of the cylinder body and is coaxial with the cylinder body. The drive shaft 73 is driven by a motor 74 installed at the bottom of the cylinder body. A rotating base 71 is coaxially mounted on the top of the drive shaft 73. Symmetrical rotating shafts 712 are horizontally arranged on both sides of the rotating base 71. The rotating base 71 rotates horizontally coaxially relative to the granulation plate 5 under the drive shaft 73. The granulation roller 6 is coaxially mounted on the rotating shaft 712 and can rotate horizontally around the center of the granulation plate 5 under the rotation of the rotating base 71. The granulation roller 6 is mounted on the rotating shaft 712 and has a spindle-shaped protrusion on its surface. Its shape matches the downwardly concave arc of the granulation plate to facilitate the extrusion of phosphate fertilizer particles. Preferably, the granulation roller 6 has a hollow structure. Preferably, limit rings 72 are provided at both ends of the granulation roller 6 to limit the displacement of the granulation roller 6.

[0034] like Figure 4 As shown, the scraper 52 is horizontally arranged on both sides of the drive shaft 73 and is against the bottom of the granulation plate 5. It can scrape off the extruded phosphate fertilizer particles under the drive shaft 73. Preferably, the scraper 52 is in a shape that matches the arc of the granulation plate 5, and it should be noted that the scraper 52 should lag behind the granulation roller 6 on the horizontal rotation trajectory of the granulation roller 6, that is, after the granulation roller 6 squeezes out the phosphate fertilizer, the scraper 52 scrapes it off.

[0035] like Figure 2 and Figure 7 As shown, preferably, the inner periphery of the granulation plate 5 is provided with a tooth portion 81 arranged in a concentric annular array with the granulation plate 5, and the granulation roller 6 is respectively provided with a tooth ring 82 engaged with the tooth portion 81. When the rotating seat 71 rotates, the granulation roller 6 rotates with the rotating shaft 712 as the axis through the engaged tooth portion 81 and the tooth ring 82.

[0036] like Figure 4 As shown, preferably, an annular track 91 is provided on the outer periphery of the granulation plate 5, and the annular track 91 has the same center as the granulation plate 5. A slider 92 is provided at one end of the rotating shaft 712 away from the rotating seat 71, and the slider 92 is slidably set in the annular track 91, and a limiting flange 93 is provided on the inner wall of the cylinder body 1, and the limiting flange 93 is provided above the slider 92 to limit the slider 92.

[0037] like Figure 6 As shown, preferably, a dust-blocking brush 94 is provided on one side of the limiting flange 93 close to the center of the granulation plate 5 . The dust-blocking brush 94 does not affect the rotation of the rotating shaft 712 and can prevent the phosphate fertilizer from entering the annular track 91 .

[0038] like Figure 1 and Figure 7 As shown, preferably, the driving device includes a driving shaft 73 that passes through the bottom of the barrel 1 and is coaxial with the barrel 1, the rotating seat 71 is coaxially arranged on the driving shaft 73, and the driving shaft 73 drives the rotating seat 71 to rotate, and the driving shaft 73 is driven by a motor 74, and the motor 74 is arranged on the outside of the bottom of the barrel 1.

[0039] like Figure 1 As shown, preferably, the bottom of the barrel 1 is a cone 11 that is inclined to one side and protrudes outward from the barrel 1, and a discharge port 4 is provided at the top of the cone 11.

[0040] like Figure 5 As shown, further, a dust shield 711 is provided on the rotating seat 71 to shield the gear ring 82 and the gear portion 81 .

[0041] It should be noted that the motor 74 of this device needs to be connected to a power source not shown in the drawings.

[0042] The operating principle of this device is as follows: the phosphate fertilizer to be processed is introduced into the device from the feed port 2, and the phosphate fertilizer will fall on the granulation plate 5. The rotating seat 71 drives the rotating shaft 712 to move when it rotates. The rotating shaft 712 is a shaft fixedly installed on both sides of the rotating seat 71. The granulation roller 6 is movably arranged on the rotating shaft 712, and a gear ring 82 meshing with the tooth portion 81 is provided on one side of the granulation roller 6. When the rotating seat 71 rotates, the gear ring 82 and the tooth portion 81 cooperate to rotate the granulation roller 6, thereby The phosphate fertilizer is crushed during rotation, and the slider 92 arranged at the end of the rotating shaft 712 is arranged between the annular track 91 and the limiting flange 93, which can disperse the force on both sides of the rotating shaft 712. After the phosphate fertilizer falls on the granulation plate 5, it will be affected by gravity and gathered at the arc-shaped bottom of the granulation plate 5. At this time, the granulation roller 6 rotates and crushes to squeeze the phosphate fertilizer out of the granulation hole 51. After being squeezed out, the scraper 52 scrapes the phosphate fertilizer off to complete the processing of the phosphate fertilizer particles.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A granulating drum for phosphate fertilizer production, comprising a horizontally arranged cylindrical drum body (1), a feed inlet (2) arranged at the top end of the drum body, and a bracket (3) arranged on the drum body (1), characterized in that: It also includes a granulation device arranged inside the barrel (1) and a discharge port (4) arranged on one side of the barrel bottom; The granulation device comprises a granulation plate (5), a rotating device, a granulation roller (6) and a scraper (52); The granulation plate (5) is a circular plate-shaped structure, and the surface of the granulation plate (5) is a downwardly concave arc surface. In addition, a plurality of granulation holes (51) are opened on the granulation plate (5); The rotating device comprises a driving device vertically arranged at the center of the granulation plate (5), the driving device comprising a driving shaft (73) penetrating the bottom of the cylinder body (1) and coaxial with the cylinder body (1), the driving shaft (73) being driven by a motor (74) arranged at the bottom of the cylinder body, a rotating seat (71) being coaxially mounted on the top end of the driving shaft, symmetrical rotating shafts (712) being horizontally arranged on both sides of the rotating seat (71), and the rotating seat (71) being driven by the driving shaft (73) to rotate coaxially and horizontally relative to the granulation plate (5); The granulation roller (6) is coaxially sleeved on the rotating shaft (712), and the granulation roller can rotate horizontally around the center of the granulation plate (5) under the drive of the rotating seat (71). At the same time, the granulation roller (6) is on the rotating shaft (712), and the surface of the granulation roller (6) is spindle-shaped and protrudes, and its shape is consistent with the downward concave arc of the granulation plate (5) to squeeze the phosphate fertilizer particles; The scrapers (52) are horizontally arranged on both sides of the rotating shaft (712) and are against the bottom of the granulating plate (5), and can scrape off the extruded phosphate fertilizer particles driven by the rotating shaft (712).

2. The granulating drum for phosphate fertilizer production according to claim 1, characterized in that: The inner periphery of the granulation plate (5) is provided with teeth (81) arranged in a concentric annular array with the granulation plate (5), and the granulation roller (6) is provided with a tooth ring (82) meshing with the teeth (81). When the rotating seat (71) rotates, the meshing teeth (81) and the tooth ring (82) cause the granulation roller (6) to rotate with the rotating shaft (712) as the axis.

3. The granulating drum for phosphate fertilizer production according to claim 2, characterized in that: The interior of the granulation roller (6) is a hollow structure.

4. The granulating drum for phosphate fertilizer production according to claim 3, characterized in that: Limiting rings (72) for limiting the displacement of the granulating roller (6) are provided at both ends of the granulating roller (6).

5. The granulating drum for phosphate fertilizer production according to claim 1, characterized in that: The outer periphery of the granulation plate (5) is provided with an annular track (91), and the annular track (91) and the granulation plate (5) have the same center. The end of the rotating shaft (712) away from the rotating seat (71) is provided with a slider (92), and the slider (92) is slidably arranged in the slider (92) track (91), and the inner wall of the cylinder body (1) is provided with a limiting flange (93), and the limiting flange (93) is arranged above the slider (92) to limit the slider (92).

6. The granulating drum for phosphate fertilizer production according to claim 5, characterized in that: A dust-blocking brush (94) is provided on one side of the limiting flange (93) close to the center of the granulation plate (5). The dust-blocking brush (94) does not affect the rotation of the rotating shaft (712) and can prevent the phosphate fertilizer from entering the track (91) of the slider (92).

7. The granulating drum for phosphate fertilizer production according to claim 1, characterized in that: The bottom of the barrel (1) is a cone (11) inclined to one side and directed toward the outside of the lower side of the barrel (1), and a discharge port (4) is provided at the top of the cone (11).

8. The granulating drum for phosphate fertilizer production according to claim 1, characterized in that: The rotating seat (71) is provided with a dust shield (711) capable of shielding the gear ring (82) and the tooth portion (81).

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