Fertilizer granulator

Abstract

The utility model discloses a fertilizer granulator which comprises a granulation box, a granulation roller group, a power device, an opening, a feed hopper, a screening device and a uniform material distribution device, the screening device is arranged below the granulation roller set, vibration force is applied to the sieve plate through the vibration motor, so that finished product particles can move forwards along the sieve plate and are finally discharged through the concentrate outlet, crushed materials can be discharged from the tailing outlet through the sieve plate, screening work can be completed in the production process of chemical fertilizer particles, and the production efficiency of the chemical fertilizer particles is improved. According to the screening device, subsequent independent screening is not needed, tailings screened out on site can be immediately put into production, the production efficiency is high, a uniform material distributing device is arranged in the feeding hopper, and a servo motor controls a driving wheel to rotate at a constant speed so as to drive a sweeping plate to swing in a reciprocating mode; the sweeping plate swinging in a reciprocating mode can evenly disperse raw materials to all positions of the surface of the granulation roller set, the raw materials are prevented from being accumulated at one position, and the granulation success rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer production, in particular to a fertilizer granulator. Background Art

[0002] Fertilizer granulator is a kind of granulator, which is used to granulate various organic matter after fermentation. It can form powdered raw materials into granules stably through multiple processes such as mixing, pressing, and spheroidization, thereby greatly improving the quality and stability of the fertilizer.

[0003] Existing patent application number: 201820552022.2 The fertilizer granulator includes an extrusion chamber, a breaking up chamber and a forming chamber. The extrusion chamber is provided with an extrusion device for extruding the material into initial shape, the breaking up chamber is provided with a breaking up device for breaking up the initially formed material, the forming chamber is provided with a forming device for re-forming the broken up material, and the extrusion device is provided with a feeding hopper for feeding.

[0004] The above patent records the structure and operating principle of a fertilizer granulator. In actual application, the fertilizer granules produced by the fertilizer granulator need to be screened to screen out the broken materials that failed granulation to ensure product quality. However, the screening of the fertilizer granules is carried out separately at a later time, and the process is cumbersome. In addition, the feed hopper of the fertilizer granulator has a single function and lacks uniform feeding measures. During the feeding process, the raw materials may accumulate on one side of the extrusion roller, thereby affecting the success rate of granulation. For this reason, we propose a fertilizer granulator to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a fertilizer granulator to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fertilizer granulator, comprising a granulation box, a granulation roller group, a power device, an opening, a feed hopper, a screening device and a uniform material distribution device, wherein the granulation box has a granulation roller group rotatably installed at the upper end thereof, a power device is installed at the upper end of the front of the granulation box, and the granulation roller group is driven to rotate by the power device, an opening is provided at the lower end of the front of the granulation box, a feed hopper is installed in the middle of the top surface of the granulation box, a screening device is arranged below the granulation roller group, the screening device comprises a screening box, a spring support, a feed inlet, a fine material outlet, a tailing material outlet, a sieve plate and a vibration motor, and the screening box is provided In the middle of the inner side of the granulation box, the screening box is located below the granulation roller group. Spring supports are installed on the left and right sides of the screening box, and the screening box establishes an elastic support with the side wall of the granulation box through the spring supports. A feed port is provided on the top of the screening box, and the feed port is opposite to the granulation roller group. A fine material outlet is provided at the front of the screening box, and the fine material outlet extends out of the inner side of the granulation box through the opening. A tailing material outlet is provided at the bottom of the screening box. A sieve plate is installed obliquely in the middle of the inner side of the screening box, and the sieve plate is separated between the fine material outlet and the tailing material outlet. Vibration motors are symmetrically installed on the edges of both sides of the bottom of the sieve plate, and a uniform material distribution device is provided inside the feed hopper.

[0007] Preferably, a spacing of not less than 5 cm is reserved between the screening box and the inner wall of the granulation box.

[0008] Preferably, the sieve plate is not less than 40 cm in length.

[0009] Preferably, the uniform material distribution device includes a sweeping plate, a gear, a rack, a servo motor, a driving wheel and a transmission rod. No less than a sweeping plate is equidistantly installed at the bottom outlet inside the feed hopper. The right side wall of the feed hopper is rotatably connected to a gear, and the gear is connected to the shaft of the sweeping plate, so that the sweeping plate rotates synchronously with the gear. The right side wall of the feed hopper is equipped with a rack for horizontal sliding sliding using a guide rail. The rack is located below the gear and meshes with it. A servo motor is installed at the rear of the feed hopper, and the right output end of the servo motor is connected to a driving wheel. The edge position of the driving wheel is rotatably connected to a transmission rod, and the other end of the transmission rod is rotatably connected to the rack.

[0010] Preferably, the reciprocating swing amplitude of the sweeping plate is not less than 60 degrees.

[0011] Preferably, the rotation speed of the servo motor does not exceed 6 r / min.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model sets a screening device under the granulating roller group, and applies vibration force to the screen plate through the vibration motor, so that the finished particles will move forward along the screen plate and eventually be discharged through the fine material outlet, while the crushed materials will be discharged from the tailing material outlet through the screen plate. The screening work can be completed in the production process of fertilizer particles, and there is no need for subsequent separate screening. The tailings screened out on site can be put into production again immediately, and the production efficiency is high.

[0014] The utility model sets a uniform material distribution device inside the feed hopper, controls the driving wheel to rotate at a uniform speed through a servo motor, and drives the sweeping plate to swing back and forth. The reciprocating swinging sweeping plate can disperse the raw materials more evenly to various positions on the surface of the granulating roller group, avoids the raw materials from piling up in one place, and thus improves the success rate of granulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the granulation box of the present invention;

[0017] Figure 3 This is a schematic diagram of the right side cross-sectional structure of the screening box of the present invention;

[0018] Figure 4 This is a schematic diagram of the front cross-sectional structure of the feed hopper of the present invention;

[0019] Figure 5 This is a schematic structural diagram of the feed hopper from the right side of the present invention.

[0020] In the figure: granulation box 1, granulation roller assembly 2, power unit 3, opening 4, feed hopper 5, screening device 6, screening box 61, spring support 62, feed inlet 63, fine material outlet 64, tailings outlet 65, sieve plate 66, vibration motor 67, uniform distribution device 7, sweeping plate 71, gear 72, rack 73, servo motor 74, drive wheel 75, transmission rod 76. DETAILED DESCRIPTION

[0021] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0022] See also Figure 1The utility model provides a fertilizer granulator, including a granulation box 1, a granulation roller group 2, a power device 3, an opening 4, a feed hopper 5, a screening device 6 and a uniform material distribution device 7. The granulation roller group 2 is rotatably installed at the upper end of the granulation box 1, the power device 3 is installed at the upper front end of the granulation box 1, the granulation roller group 2 is driven to rotate by the power device 3, an opening 4 is opened at the lower front end of the granulation box 1, a feed hopper 5 is installed in the middle of the top surface of the granulation box 1, a screening device 6 is provided below the granulation roller group 2, and a uniform material distribution device 7 is provided inside the feed hopper 5.

[0023] See also Figure 2-3 The present invention provides a fertilizer granulator. The screening device 6 includes a screening box 61, a spring support 62, a feed port 63, a fine material outlet 64, a tailing material outlet 65, a screen plate 66 and a vibration motor 67. The screening box 61 is arranged in the middle of the inner side of the granulation box 1, and the screening box 61 is located below the granulation roller group 2. The spring supports 62 are installed on the left and right sides of the screening box 61, and the screening box 61 establishes an elastic support with the side wall of the granulation box 1 through the spring support 62. The spring support 62 plays a vibration reduction role to avoid vibration of the motor 6 The vibration force of 7 is transmitted to the granulation box 1 to affect it. A feed port 63 is provided on the top of the screening box 61, and the feed port 63 is opposite to the granulation roller group 2. A fine material outlet 64 is provided at the front of the screening box 61, and the fine material outlet 64 extends out of the inner side of the granulation box 1 through the opening 4. A tailing material outlet 65 is provided at the bottom of the screening box 61. A sieve plate 66 is installed obliquely in the middle of the inner side of the screening box 61. The sieve plate 66 is separated between the fine material outlet 64 and the tailing material outlet 65. Vibration motors 67 are symmetrically installed on both sides of the bottom edge of the sieve plate 66.

[0024] Further explanation: a gap of not less than 5 cm is reserved between the screening box 61 and the inner wall of the granulation box 1 to avoid abnormal noise caused by contact between the screening box 61 and the granulation box 1 in a vibrating state.

[0025] It is further explained that the length of the sieve plate 66 is not less than 40 cm so that the material has sufficient residence time on the sieve plate 66 to ensure the screening effect.

[0026] See also Figure 4-5The present invention provides a fertilizer granulator. The uniform material distribution device 7 includes a sweeping plate 71, a gear 72, a rack 73, a servo motor 74, a driving wheel 75 and a transmission rod 76. At least two sweeping plates 71 are equidistantly installed at the bottom outlet inside the feed hopper 5. The right side wall of the feed hopper 5 is rotatably connected with a gear 72, and the gear 72 is connected to the shaft of the sweeping plate 71, so that the sweeping plate 71 rotates synchronously with the gear 72. The right side wall of the feed hopper 5 is horizontally slidably installed with a rack 73 using a guide rail. The rack 73 is located below the gear 72 and meshes with it. A servo motor 74 is installed at the rear of the feed hopper 5. The right output end of the servo motor 74 is connected to the driving wheel 75. The edge position of the driving wheel 75 is rotatably connected to the transmission rod 76, and the other end of the transmission rod 76 is rotatably connected to the rack 73.

[0027] It is further explained that the reciprocating swing amplitude of the sweeping plate 71 is not less than 60 degrees, so as to expand the feeding range of the sweeping plate 71.

[0028] It is further explained that the rotation speed of the servo motor 74 does not exceed 6 r / min to control the swing speed of the sweeping plate 71 to prevent the sweeping plate 71 from swinging too fast and causing material splashing.

[0029] Here’s how it works:

[0030] First, the power device 3, the vibration motor 67 and the servo motor 74 are connected to the power supply to complete the pre-production preparation.

[0031] Second, when producing fertilizer granules, the raw materials are first added into the granulation box 1 through the feed hopper 5. During this process, the power device 3 drives the granulation roller group 2 to rotate, so that the raw materials are squeezed into granules through the granulation roller group 2, thereby realizing granulation.

[0032] Third, by arranging a screening device 6 below the granulation roller group 2, during the granulation process, the particles discharged by the granulation roller group 2 will fall downward into the feed port 63 and come into the screening box 61. During this process, the vibration motor 67 will apply vibration force to the screen plate 66, so that the screen plate 66 will screen the particles, and the finished particles will move forward along the screen plate 66 and eventually be discharged through the fine material outlet 64, while the crushed materials will pass through the screen plate 66 and fall into the inner bottom surface of the screening box 61 and eventually be discharged through the tailings outlet 65. The screening work can be completed in the process of fertilizer particle production without the need for subsequent separate screening, and the tailings screened on site can be immediately put into production again, with high production efficiency.

[0033] Fourth, by setting a uniform material distribution device 7 inside the feed hopper 5, during the production process, the servo motor 74 controls the driving wheel 75 to rotate at a uniform speed. At this time, the driving wheel 75 drives the rack 73 to move back and forth through the transmission rod 76. The gear 72 flips back and forth under the drive of the rack 73, and drives the sweeping plate 71 in the feed hopper 5 to move synchronously. The reciprocating sweeping plate 71 can disperse the raw materials more evenly to various positions on the surface of the granulation roller group 2, avoiding the accumulation of raw materials in one place, so as to improve the success rate of granulation.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fertilizer granulator, comprising a granulation box (1), a granulation roller group (2), a power device (3), an opening (4) and a feed hopper (5), wherein the granulation box (1) has a granulation roller group (2) rotatably mounted on the upper end thereof, the power device (3) is mounted on the upper front end thereof, the granulation roller group (2) is driven to rotate by the power device (3), the lower front end of the granulation box (1) is provided with an opening (4), and the feed hopper (5) is mounted on the middle portion of the top surface of the granulation box (1); Its characteristics are: It also includes a screening device (6) and a uniform material distribution device (7). The screening device (6) is provided below the granulation roller group (2). The screening device (6) includes a screening box (61), a spring support (62), a material inlet (63), a fine material outlet (64), a tailing material outlet (65), a screen plate (66) and a vibration motor (67). The screening box (61) is provided in the middle of the inner side of the granulation box (1), and the screening box (61) is located below the granulation roller group (2). The spring support (62) is installed on the left and right sides of the screening box (61), and the screening box (61) establishes elastic support with the side wall of the granulation box (1) through the spring support (62). The screening box (61) is provided with a feed inlet (63) at the top, and the feed inlet (63) is directly opposite to the granulation roller group (2). The screening box (61) is provided with a fine material outlet (64) at the front, and the fine material outlet (64) extends out of the inner side of the granulation box (1) through the opening (4). The screening box (61) is provided with a tailing material outlet (65) at the bottom. A sieve plate (66) is obliquely installed in the middle of the inner side of the screening box (61), and the sieve plate (66) is separated between the fine material outlet (64) and the tailing material outlet (65). Vibration motors (67) are symmetrically installed on both sides of the bottom edge of the sieve plate (66). A uniform material distribution device (7) is provided inside the feed hopper (5).

2. A fertilizer granulator according to claim 1, characterized in that: A spacing of not less than 5 cm is reserved between the screening box (61) and the inner wall of the granulation box (1).

3. A fertilizer granulator according to claim 1, characterized in that: The sieve plate (66) is not less than 40 cm in length.

4. A fertilizer granulator according to claim 1, characterized in that: The uniform material distribution device (7) includes a sweeping plate (71), a gear (72), a rack (73), a servo motor (74), a driving wheel (75) and a transmission rod (76). At least two sweeping plates (71) are equidistantly installed at the bottom outlet of the inner side of the feed hopper (5). The right side wall of the feed hopper (5) is rotatably connected to the gear (72), and the gear (72) is connected to the shaft of the sweeping plate (71) so that the sweeping plate (71) rotates synchronously with the gear (72). The right side wall of the feed hopper (5) is horizontally slidably installed with a rack (73) using a guide rail. The rack (73) is located below the gear (72) and meshes with it. The rear part of the feed hopper (5) is equipped with a servo motor (74). The right output end of the servo motor (74) is connected to the driving wheel (75). The edge position of the driving wheel (75) is rotatably connected to the transmission rod (76). The other end of the transmission rod (76) is rotatably connected to the rack (73).

5. A fertilizer granulator according to claim 4, characterized in that: The reciprocating swing amplitude of the sweeping plate (71) is not less than 60 degrees.

6. A fertilizer granulator according to claim 4, characterized in that: The rotation speed of the servo motor (74) does not exceed 6 r / min.

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