Chemical fertilizer granulator

Abstract

The utility model discloses a chemical fertilizer granulator which comprises a shell, a feed port is formed in the top end of the shell, a granulation chamber and a material collection chamber are formed in the shell, the material collection chamber is arranged below the granulation chamber, the granulation chamber and the material collection chamber are communicated through a material passing channel, the top end of the granulation chamber is communicated with the feed port, and the feed port is communicated with the material passing channel. A pair of granulation rollers are installed in the granulation cavity and right face the feeding port, granulation roller cleaning devices are installed on the side walls of the two ends of the granulation cavity, scattering rollers are installed in the material passing channel and are parallel to the granulation rollers, a filter screen device is obliquely installed in the material collecting cavity, and a discharging port is formed in the side wall of the shell. The discharge port is arranged to be matched with the low point end of the filter screen device, and the granulation roller and the scattering roller are driven by a driving motor to rotate. According to the utility model, the granulation roller cleaning devices are arranged at the two ends of the granulation roller, and the granulation groove of the granulation roller is cleaned by the granulation roller cleaning devices by utilizing the rotation of the granulation roller in the granulation process.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a fertilizer granulator. Background Technology

[0002] In agricultural production, various fertilizers are widely used, with compound fertilizers containing nitrogen, phosphorus, potassium and other nutrients being the most widely used. The main production methods of compound fertilizers include granulation, slurry, extrusion and mixing. Potassium chloride, ammonium nitrate, ammonium phosphate, calcium carbonate and potassium sulfate are melted and granulated. During the production process of roller press granulators, the powder needs to be extruded and shaped by a pair of rotating rollers. The powder is easily stuck in the granulation groove on the rotating rollers due to the pressure of the extrusion, which affects the forming quality of subsequent extrusion granulation. Utility Model Content

[0003] The purpose of this utility model is to provide a fertilizer granulator, which cleans the granulation groove of the granulator by setting a granulator cleaning device at both ends of the granulator roller and using the rotation of the granulator roller during the granulation process.

[0004] To achieve the purpose of this utility model, a fertilizer granulator is provided, comprising: a shell, a feed inlet at the top of the shell, a granulation chamber and a collection chamber inside the shell, the collection chamber being located below the granulation chamber and connected to the granulation chamber via a material passage, the top of the granulation chamber being connected to the feed inlet, a pair of granulation rollers installed in the granulation chamber, the granulation rollers being positioned directly opposite the feed inlet, granulation roller cleaning devices installed on the side walls at both ends of the granulation chamber, a dispersing roller installed in the material passage, the dispersing roller being parallel to the granulation roller, a filter screen device installed at an angle in the collection chamber, a discharge port on the side wall of the shell, the discharge port being adapted to the lower end of the filter screen device, and both the granulation roller and the dispersing roller being driven to rotate by a drive motor.

[0005] As a preferred embodiment of this utility model, a funnel-shaped constriction structure is provided at the connection between the granulation chamber and the material passage.

[0006] As a preferred embodiment of this utility model, the surface of the granulating roller is provided with granulation grooves, and a plurality of the granulation grooves are arranged at intervals.

[0007] As a preferred embodiment of the present invention, the granulation roller cleaning device includes a cleaning block, which is installed on the side walls at both ends of the granulation chamber. The cleaning block is provided with a plurality of cleaning brushes near the end plate of the granulation roller, and the cleaning brushes extend into the granulation tank.

[0008] As a preferred embodiment of this utility model, the drive motor is installed on the outside of the housing, the drive motor's rotating shaft is equipped with a drive gear, and the rotating shafts of the two granulation rollers are each equipped with a transmission gear, with the two transmission gears meshing and connected to both sides of the drive gear.

[0009] As a preferred embodiment of this utility model, the dispersing roller includes a turntable and dispersing rods. The turntable is poweredly connected to the rotating shaft of the drive motor via a transmission belt. The four dispersing rods are arranged circumferentially on the turntable plate and are parallel to the granulation roller.

[0010] As a preferred embodiment of the present invention, the filter device includes a first filter and a second filter. Both the first filter and the second filter are inclined. The higher end of the second filter is located below the lower end of the first filter. The filter holes of the first filter are larger than the filter holes of the second filter.

[0011] As a preferred embodiment of this utility model, the discharge port includes a first discharge port and a second discharge port, wherein the first discharge port is adapted to be disposed at the low end of the first filter screen, and the second discharge port is adapted to be disposed at the low end of the second filter screen.

[0012] As a preferred embodiment of this utility model, a powder collection box is provided at the bottom of the collection chamber, and the powder collection box is located below the second filter screen.

[0013] Compared with the prior art, this utility model provides a fertilizer granulator with the following beneficial effects:

[0014] This invention features a granulation roller cleaning device at both ends of the granulation roller. The granulation roller rotates during the granulation process, and the cleaning device cleans the granulation grooves of the roller. Raw materials are fed into the feed inlet, and the granulation grooves on the granulation roller compress the materials into granules. These granules then fall into the material passage. A dispersing roller in the material passage breaks up any granules that are stuck together, causing them to fall onto the first filter screen. Particles larger than the pores of the first filter screen are discharged from the first outlet, while particles larger than the pores of the second filter screen are discharged from the second outlet. Smaller granules and powder resulting from failed granulation fall into the powder collection box and are subsequently fed back into the feed inlet for reuse. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the granulation roller cleaning device of this utility model;

[0017] Figure 3This is a schematic diagram of the structure of the dispersing roller of this utility model;

[0018] Figure 4 This is a schematic diagram of the drive motor transmission structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the material collection chamber structure of this utility model.

[0020] 1 is the shell, 2 is the feed inlet, 3 is the granulation chamber, 4 is the collection chamber, 5 is the material passage, 6 is the granulation roller, 7 is the granulation roller cleaning device, 71 is the cleaning block, 72 is the cleaning brush, 8 is the dispersing roller, 81 is the turntable, 82 is the dispersing rod, 9 is the filter screen device, 91 is the first filter screen, 92 is the second filter screen, 10 is the discharge port, 101 is the first discharge port, 102 is the second discharge port, 11 is the drive motor, 12 is the drive gear, 13 is the transmission gear, and 14 is the powder collection box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 This utility model provides a fertilizer granulator, comprising: a housing 1, a feed inlet 2 at the top of the housing 1, a granulation chamber 3 and a collection chamber 4 inside the housing 1, the collection chamber 4 being located below the granulation chamber 3 and connected to the granulation chamber 3 by a material passage 5, the top of the granulation chamber 3 being connected to the feed inlet 2, a pair of granulation rollers 6 installed inside the granulation chamber 3, the granulation rollers 6 being positioned directly opposite the feed inlet 2, granulation roller cleaning devices 7 installed on the side walls at both ends of the granulation chamber 3, a dispersing roller 8 installed in the material passage 5, the dispersing roller 8 being parallel to the granulation rollers 6, a filter screen device 9 installed at an angle in the collection chamber 4, a discharge outlet 10 on the side wall of the housing 1, the discharge outlet 10 being adapted to the lower end of the filter screen device 9, and both the granulation rollers 6 and the dispersing roller 8 being driven to rotate by a drive motor 11.

[0023] In one embodiment of this utility model, a funnel-shaped constriction structure is provided at the connection between the granulation chamber 3 and the material passage 5.

[0024] In one embodiment of the present invention, the granulating roller 6 has granulation grooves on its surface, and a plurality of granulation grooves are arranged at intervals.

[0025] In one embodiment of the present invention, the granulation roller cleaning device 7 includes a cleaning block 71, which is installed on the side walls at both ends of the granulation chamber 3. The cleaning block 71 is provided with a plurality of cleaning brushes 72 near the end plate of the granulation roller 6, and the cleaning brushes 72 extend into the granulation tank.

[0026] In one embodiment of the present invention, the drive motor 11 is installed on the outside of the housing 1, the drive motor 11 has a drive gear 12 mounted on its rotating shaft, and the two granulation rollers 6 each have a transmission gear 13 mounted on their rotating shafts. The two transmission gears 13 are respectively meshed and connected to both sides of the drive gear 12.

[0027] In one embodiment of the present invention, the dispersing roller 8 includes a turntable 81 and dispersing rods 82. The turntable 81 is poweredly connected to the rotating shaft of the drive motor 11 via a transmission belt. The four dispersing rods 82 are arranged circumferentially on the surface of the turntable 81, and the dispersing rods 82 are arranged parallel to the granulation roller 6.

[0028] In one embodiment of the present invention, the filter device 9 includes a first filter 91 and a second filter 92. Both the first filter 91 and the second filter 92 are inclined. The high point of the second filter 92 is located below the low point of the first filter 91. The filter holes of the first filter 91 are larger than the filter holes of the second filter 92.

[0029] In one embodiment of the present invention, the discharge port 10 includes a first discharge port 101 and a second discharge port 102. The first discharge port 101 is adapted to be disposed at the low end of the first filter screen 91, and the second discharge port 102 is adapted to be disposed at the low end of the second filter screen 92.

[0030] In one embodiment of the present invention, a powder collection box 14 is provided at the bottom of the collection chamber 4, and the powder collection box 14 is located below the second filter screen 92.

[0031] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A fertilizer granulator, characterized in that, include: A shell (1) has a feed inlet (2) at its top. A granulation chamber (3) and a collection chamber (4) are located inside the shell (1). The collection chamber (4) is positioned below the granulation chamber (3), and the granulation chamber (3) and the collection chamber (4) are connected by a material passage (5). The top of the granulation chamber (3) is connected to the feed inlet (2). A pair of granulation rollers (6) are installed inside the granulation chamber (3), with the granulation rollers (6) facing the feed inlet (2). Granulation roller cleaning devices (7) are installed on the side walls at both ends of the granulation chamber (3). A dispersing roller (8) is installed inside the material passage (5), and the dispersing roller... (8) Parallel to the granulation roller (6), the collection chamber (4) is inclinedly equipped with a filter screen device (9), and the side wall of the shell (1) is provided with a discharge port (10). The discharge port (10) is adapted to the low end of the filter screen device (9). The granulation roller (6) and the dispersing roller (8) are both driven to rotate by a drive motor (11). The dispersing roller (8) includes a turntable (81) and dispersing rods (82). The turntable (81) is powered to the rotating shaft of the drive motor (11) through a transmission belt. The four dispersing rods (82) are arranged circumferentially on the plate of the turntable (81), and the dispersing rods (82) are parallel to the granulation roller (6).

2. The fertilizer granulator according to claim 1, characterized in that: A trumpet-shaped constriction structure is provided at the connection between the granulation chamber (3) and the material passage (5).

3. The fertilizer granulator according to claim 1, characterized in that: The granulation roller (6) has granulation grooves on its surface, and several of the granulation grooves are arranged at intervals.

4. A fertilizer granulator according to claim 3, characterized in that: The granulation roller cleaning device (7) includes a cleaning block (71), which is installed on the side walls at both ends of the granulation chamber (3). Several cleaning brushes (72) are provided on the cleaning block (71) near the end plate of the granulation roller (6), and the cleaning brushes (72) extend into the granulation tank.

5. A fertilizer granulator according to claim 1, characterized in that: The drive motor (11) is installed on the outside of the housing (1). The drive motor (11) has a drive gear (12) installed on its rotating shaft. The two granulation rollers (6) have transmission gears (13) installed on their rotating shafts. The two transmission gears (13) are respectively meshed and connected to both sides of the drive gear (12).

6. A fertilizer granulator according to claim 1, characterized in that: The filter device (9) includes a first filter (91) and a second filter (92). Both the first filter (91) and the second filter (92) are inclined. The high point of the second filter (92) is located below the low point of the first filter (91). The filter holes of the first filter (91) are larger than the filter holes of the second filter (92).

7. A fertilizer granulator according to claim 6, characterized in that: The discharge port (10) includes a first discharge port (101) and a second discharge port (102). The first discharge port (101) is adapted to be set at the low end of the first filter screen (91), and the second discharge port (102) is adapted to be set at the low end of the second filter screen (92).

8. A fertilizer granulator according to claim 6, characterized in that: The bottom of the collection chamber (4) is provided with a powder collection box (14), which is located below the second filter screen (92).

Images