Urea crusher for water-soluble fertilizer production

Abstract

The urea crusher comprises a first crushing box and a second crushing box, a feeding hopper is arranged on the first crushing box, a crushing mechanism is arranged in the first crushing box, a screening mechanism is arranged at the position, located below the crushing mechanism, in the first crushing box through an adjusting mechanism, and a discharging opening is formed in the bottom end of the first crushing box. An empty groove matched with the screening mechanism is formed in one side wall of the crushing box, a guide-out plate is obliquely arranged at the end of the empty groove, the first crushing box and the second crushing box are the same in structure, and the guide-out plate of the first crushing box is matched with the feeding hopper of the second crushing box. The urea crushing device has the beneficial effects that crushed urea can be conveniently vibrated and screened, then urea with the proper particle size can be conveniently collected, subsequent processing and using are facilitated, meanwhile, urea with the large particle size can be conveniently screened and discharged, it is prevented that the urea is left on a screen, the urea can be discharged and crushed again, waste can be avoided, and the production cost is reduced. And screen mesh blockage caused by long-time use can be avoided, and the screening effect is ensured.

Description

Technical Field

[0001] The utility model relates to the field of urea processing, in particular to a urea crusher for producing water-soluble fertilizers. Background Art

[0002] Water-soluble fertilizers refer to compound fertilizers containing nitrogen, phosphorus, potassium, calcium, magnesium, trace elements, amino acids, humic acid, alginic acid, etc. that can be completely dissolved in water. There are two types of water-soluble fertilizers in terms of form: solid water-soluble fertilizers and liquid water-soluble fertilizers. In terms of nutrient content, there are water-soluble fertilizers containing large amounts of elements, water-soluble fertilizers containing medium amounts of elements, water-soluble fertilizers containing trace elements, water-soluble fertilizers containing amino acids, water-soluble fertilizers containing humic acid, organic water-soluble fertilizers, etc. Urea, also known as carbamide, is an organic compound composed of carbon, nitrogen, oxygen, and hydrogen and is a white crystal. One of the simplest organic compounds, it is the main nitrogen-containing end product of protein metabolism and decomposition in mammals and some fish. In the production of water-soluble fertilizers, it is necessary to crush large particles of urea into powder, so a crusher is an indispensable equipment.

[0003] However, the existing urea crusher has certain defects in actual use. Although the crushed urea can be screened and urea of ​​suitable particle size can be collected, it is easy to cause some large particles of urea to remain on the screen, etc., which not only causes waste but also easily leads to blockage over time, affecting the screening effect. Utility Model Content

[0004] The purpose of the utility model is to provide a urea crusher for producing water-soluble fertilizers to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A urea crusher for producing water-soluble fertilizer comprises a crushing box one and a crushing box two. The crushing box one is provided with a feed hopper, a crushing mechanism is provided inside the crushing box one, a screening mechanism is provided inside the crushing box one below the crushing mechanism through an adjusting mechanism, a discharge port is provided at the bottom end of the crushing box one, an empty slot matching the screening mechanism is provided on one side wall of the crushing box, a lead-out plate is obliquely provided at the end of the empty slot, the crushing box one and the crushing box two have the same structure, and the lead-out plate of the crushing box one matches the feed hopper of the crushing box two.

[0007] Furthermore, in order to facilitate the crushing operation of urea, the crushing mechanism includes a rotating shaft symmetrically arranged inside the crushing box, crushing fins are equidistantly arranged on the rotating shaft, and the crushing fins on the two rotating shafts are staggered.

[0008] Furthermore, in order to facilitate the crushing operation of urea, the crushing mechanism also includes a main gear arranged at the end of one of the rotating shafts, and a slave gear meshing with the main gear is provided on the other rotating shaft, and the rotating shaft on the main gear is fixedly connected to the output end of the motor.

[0009] Furthermore, in order to screen the crushed urea and collect urea of ​​suitable particle size for convenience of subsequent processing and use, the screening mechanism includes a connecting plate symmetrically arranged inside the crushing box, a mounting frame is provided on the connecting plate through a guide telescopic rod, a screen is provided in the mounting frame, a vibration motor is symmetrically provided under the mounting frame, and a spring is provided on the outside of the guide telescopic rod.

[0010] Furthermore, in order not to affect the rotation adjustment of the mounting frame and to prevent large-diameter urea from leaking out during discharge, an elastic pad is provided at one end of the screen near the empty slot.

[0011] Furthermore, in order to facilitate the adjustment of the inclination angle of the mounting frame, so as to facilitate the discharge of large-particle urea on the screen for re-crushing and prevent it from remaining on the screen, the adjustment mechanism includes a rotating rod arranged on a connecting plate near one end of the empty slot, and the rotating rod is rotatably connected to an inner wall of the crushing box.

[0012] Furthermore, in order to facilitate the adjustment of the inclination angle of the mounting frame, so as to facilitate the discharge of large-particle urea on the screen for re-crushing and prevent it from remaining on the screen, the adjustment mechanism also includes an electric push rod arranged under the connecting plate at one end away from the empty slot, one end of the electric push rod is connected to the connecting plate through a rotating block, and the other end is provided with a mounting plate through the rotating block, and the mounting plate is fixedly connected to an inner wall of the crushing box.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) The screening mechanism is provided in combination with the adjusting mechanism, so that the crushed urea can be conveniently vibrated and screened, and urea of ​​suitable particle size can be conveniently collected for subsequent processing and use. At the same time, urea of ​​large particle size can be conveniently screened and discharged to prevent it from remaining on the screen. It can be discharged and crushed again, which can avoid waste and prevent the screen from being blocked due to long-term use, thereby ensuring the screening effect;

[0015] (2) The crushing mechanism can be used to crush large-sized urea particles, thereby producing urea of ​​suitable particle size for subsequent processing and other uses, thereby ensuring the crushing effect. At the same time, the two sets of crushing boxes can be used to crush large-sized urea particles after the initial crushing, thereby ensuring the crushing effect. The system is suitable for a variety of environments and meets the processing needs of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a partial structural schematic diagram of a urea crusher for producing water-soluble fertilizer according to an embodiment of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of a crushing box 1 in a urea crusher for producing water-soluble fertilizer according to an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a crushing mechanism in a urea crusher for producing water-soluble fertilizer according to an embodiment of the utility model;

[0020] Figure 4 This is one of the structural schematic diagrams of a screening mechanism and an adjusting mechanism in a urea crusher for producing water-soluble fertilizer according to an embodiment of the utility model;

[0021] Figure 5 This is the second structural schematic diagram of the screening mechanism and the regulating mechanism in a urea crusher for producing water-soluble fertilizer according to an embodiment of the utility model.

[0022] Reference numerals:

[0023] 1. Crushing box 1; 2. Crushing box 2; 3. Feed hopper; 4. Discharge port; 5. Export plate; 6. Mounting frame; 7. Motor; 8. Mounting plate; 9. Main gear; 10. Slave gear; 11. Rotating shaft; 12. Crushing fins; 13. Screen; 14. Elastic pad; 15. Connecting plate; 16. Rotating rod; 17. Spring; 18. Guide telescopic rod; 19. Electric push rod; 20. Rotating block; 21. Vibration motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5According to an embodiment of the utility model, a urea crusher for producing water-soluble fertilizers comprises a crushing box 1 and a crushing box 2 for crushing large granular urea produced by water-soluble fertilizers. A symmetrical number of crushing boxes can be set according to the crushing situation, which can be one, two or three groups, etc., so that the incompletely crushed urea can be screened and crushed again to ensure the crushing effect. The structures of the crushing box 1 and the crushing box 2 are the same, wherein Figure 1 The figure in the middle is a partial diagram (partial cross-sectional view). A feed hopper 3 is installed on the top of the crushing box 1 for easy unloading, and a discharge port 4 is arranged at the bottom for convenient discharge and collection of the crushed and screened urea. An empty slot is opened on its side wall, and an outlet plate 5 is welded obliquely at the end of the empty slot. The outlet plate 5 of the crushing box 1 is adapted to the feed hopper 3 of the crushing box 2, and can discharge the large-size urea after screening into the crushing box 2 for further crushing and processing.

[0026] See also Figure 1-Figure 5 In order to ensure the crushing effect, two sets of rotating shafts 11 of crushing mechanisms are installed inside the crushing box 1, on which crushing fins 12 are installed at equal intervals, and the crushing fins 12 on the two rotating shafts 11 are staggered. At the same time, in order to assist crushing, auxiliary fins matching with the crushing fins 12 can be welded inside the corresponding crushing box 1 to improve the crushing effect. One end of one of the rotating shafts 11 is fixedly connected to the output end of the motor 7 through a coupling, and the other end of the corresponding rotating shaft 11 is fixedly provided with a main gear 9, and the other rotating shaft 11 is installed with a slave gear 10 meshing with the main gear 9, so that the motor 7 can rotate, and the two rotating shafts 11 can rotate to crush the urea.

[0027] See also Figure 1-Figure 5In order to facilitate the screening of the crushed urea, qualified urea is discharged and collected through the discharge port 4, and the larger particles are discharged into the crushing box 2 through the guide plate 5 for re-crushing. At the same time, to avoid urea residue on the screen 13, two groups of connecting plates 15 are symmetrically arranged inside the crushing box 1, and the mounting frame 6 (a U-shaped frame) is connected thereto through a guide telescopic rod 18, and the outer sleeve of the guide telescopic rod 18 is provided with a spring 17. In order to facilitate the screening operation, a screen 13 is installed inside the mounting frame 6 (the screen 13 in the crushing box 1 has the same aperture as the screen 13 in the crushing box 2), and the screen 13 is bonded with an elastic pad 14 (with the crushing box 1) at one end near the empty slot. The inner wall is fitted), and two groups of vibration motors 21 are symmetrically installed at the bottom of the mounting frame 6. The model can be PT-MVE micro AC vibration motor, or other models. It is a relatively mature technology and will not be described in detail here. It can be used in conjunction with vibration screening. In order to discharge large-particle urea through the outlet plate 5 after screening, the connecting plate 15 near one end of the empty slot is rotatably connected to the inner wall of the crushing box 1 through a rotating rod 16, and an electric push rod 19 is equidistantly arranged under the other connecting plate 15 (away from one end of the empty slot), one end of which is connected to the connecting plate 15 through a rotating block 20, and the other end is provided with a mounting plate 8 through the rotating block 20, and the mounting plate 8 and the inner wall of the crushing box 1 can be fixed by welding.

[0028] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0029] The large-sized urea to be crushed is added into the crushing box 1 through the feed hopper 3, and the motor 7 is operated to drive the main gear 9 on the rotating shaft 11 to rotate, and the slave gear 10 can drive the other rotating shaft 11 to rotate, and then the crushing fins 12 can be driven to rotate, so that the large-sized urea can be crushed, and the crushed urea falls onto the screen 13, and the vibration motor 21 works, and the guide telescopic rod 18 and the spring 17 are extended and retracted, so that the mounting frame 6 and the screen 13 can be vibrated, and the urea can be screened. The screen 13 falls and is discharged through the discharge port 4. After the screening is completed, the electric push rod 19 is extended, and the rotating block 20 and the rotating rod 16 are cooperated to rotate and tilt the mounting frame 6, so that the large-size urea on the screen 13 can be discharged through the outlet plate 5 on the empty slot and enter the feed hopper 3 on the crushing box 2 for re-crushing. During the discharge process, the vibration motor 21 can be used to assist the discharge to avoid urea residue on the screen 13, and then the electric push rod 19 is retracted and reset to facilitate the next processing.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A urea crusher for producing water-soluble fertilizer, comprising a crushing box 1 (1) and a crushing box 2 (2), characterized in that: The crushing box (1) is provided with a feed hopper (3), a crushing mechanism is provided inside the crushing box (1), a screening mechanism is provided inside the crushing box (1) below the crushing mechanism through an adjusting mechanism, a discharge port (4) is provided at the bottom of the crushing box (1), a slot matching the screening mechanism is provided on the side wall of the crushing box (1), a guide plate (5) is provided at an angle at the end of the slot, the crushing box (1) and the crushing box (2) have the same structure, and the guide plate (5) of the crushing box (1) matches the feed hopper (3) of the crushing box (2).

2. A urea crusher for producing water-soluble fertilizer according to claim 1, characterized in that: The crushing mechanism comprises a rotating shaft (11) symmetrically arranged inside a crushing box (1), crushing fins (12) are equidistantly arranged on the rotating shaft (11), and the crushing fins (12) on the two rotating shafts (11) are staggered.

3. A urea crusher for producing water-soluble fertilizer according to claim 2, characterized in that: The crushing mechanism further comprises a main gear (9) arranged at the end of one of the rotating shafts (11), a slave gear (10) meshing with the main gear (9) is arranged on the other rotating shaft (11), and the rotating shaft (11) on the main gear (9) is fixedly connected to the output end of the motor (7).

4. A urea crusher for producing water-soluble fertilizer according to claim 3, characterized in that: The screening mechanism comprises a connecting plate (15) symmetrically arranged inside a crushing box (1), a mounting frame (6) being arranged on the connecting plate (15) via a guiding telescopic rod (18), a screen (13) being arranged inside the mounting frame (6), a vibration motor (21) being symmetrically arranged below the mounting frame (6), and a spring (17) being sleeved on the outside of the guiding telescopic rod (18).

5. A urea crusher for producing water-soluble fertilizer according to claim 4, characterized in that: An elastic pad (14) is provided at one end of the screen (13) close to the empty slot.

6. The urea crusher for producing water-soluble fertilizer according to claim 5, characterized in that: The adjustment mechanism comprises a rotating rod (16) arranged on a connecting plate (15) near one end of the empty slot, and the rotating rod (16) is rotatably connected to the inner wall of the crushing box (1).

7. The urea crusher for producing water-soluble fertilizer according to claim 6, characterized in that: The adjustment mechanism also includes an electric push rod (19) arranged under the connecting plate (15) at one end away from the empty slot, one end of the electric push rod (19) is connected to the connecting plate (15) through a rotating block (20), and the other end is provided with a mounting plate (8) through the rotating block (20), and the mounting plate (8) is fixedly connected to the inner wall of the crushing box (1).

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