Raw material crushing device for compound fertilizer production

Abstract

The utility model discloses a raw material crushing device for compound fertilizer production, and relates to the technical field of compound fertilizer production equipment, the raw material crushing device comprises a crushing box, the interior of the crushing box is divided into a crushing cavity and a discharging cavity through a partition plate, and a multi-stage crushing mechanism for crushing raw materials is arranged in the crushing cavity; the multi-stage crushing mechanism comprises a first-stage crushing roller group (20) and a second-stage crushing roller group; a conveying belt used for conveying the smashed materials is arranged in the discharging cavity, and a flattening mechanism used for flattening the smashed materials is arranged on the side, close to the input end of the conveying belt, of the conveying belt. The primary crushing roller set and the two secondary crushing roller sets are arranged in the crushing box, so that secondary crushing of materials is realized, the crushing efficiency is greatly improved, and the crushing effect is ensured. The discharging mode of the crushing box is set to be discharging in the horizontal direction, and the flattening mechanism is arranged, so that materials are dispersed and then flattened to complete discharging, and the discharging port can be prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the technical field of compound fertilizer production equipment, specifically to a raw material crushing device for compound fertilizer production. Background Technology

[0002] Chemical fertilizers, also known as compound fertilizers, are fertilizers containing one or more nutrients needed for crop growth, produced using chemical and / or physical methods. Also called inorganic fertilizers, they include nitrogen fertilizers, phosphorus fertilizers, potassium fertilizers, micronutrient fertilizers, and compound fertilizers, and are not for consumption. They share some common characteristics: simple composition, high nutrient content, rapid effect, and strong fertilizing power. Compound fertilizer production requires the addition of various raw materials. These raw materials can clump together during transportation and long-term storage. Before production, these clumps need to be crushed, which requires a crushing device.

[0003] The existing crushing equipment has poor crushing effect, resulting in many raw materials remaining clumps that are not crushed or are not completely crushed, affecting subsequent processing. In addition, the existing crushing equipment has a discharge port at the bottom of the crushing device with a discharge hopper at the discharge port. The material is crushed into powder and falls to the discharge port by its own gravity and is discharged through the discharge hopper. However, this discharge method has the problem of the crushed material accumulating in a cone shape, which quickly blocks the discharge port of the crushing device. At this time, it is necessary to manually spread the accumulated material, which is time-consuming and labor-intensive. Utility Model Content

[0004] To address the existing technical problems, this utility model provides a raw material crushing device for compound fertilizer production, including a crushing box. The top of the crushing box is provided with a feed inlet, and a partition is provided inside the crushing box to divide the interior of the crushing box into a crushing chamber and a discharge chamber from top to bottom. The crushing chamber is provided with a multi-stage crushing mechanism for crushing the raw materials; and a discharge port is provided on one side of the discharge chamber.

[0005] The multi-stage crushing mechanism includes a primary crushing roller group and a secondary crushing roller group, both fixedly installed inside the crushing box. Two auxiliary baffles are symmetrically distributed between the primary crushing roller group and the secondary crushing roller group, and a flow divider is set between the two auxiliary baffles. The flow divider and the auxiliary baffles on both sides form auxiliary feeding hoppers respectively. The secondary crushing roller group is configured as two groups, and the two groups of secondary crushing roller groups are respectively set directly above the two auxiliary feeding hoppers.

[0006] The partition is provided with a through-hole, and the crushing chamber and the discharge chamber are connected through the through-hole;

[0007] The discharge chamber is equipped with a conveyor belt for conveying the crushed material. The conveyor belt is tensioned on two drive rollers, and the two ends of the drive rollers are hinged to two corresponding bearing seats. The input end of the conveyor belt is located below the communication port, and the output end of the conveyor belt extends to the discharge port.

[0008] The conveyor belt is equipped with a leveling mechanism for spreading the crushed material.

[0009] A further embodiment is that the diversion baffle is in the shape of an inverted V, and the top of the diversion baffle is located directly below the primary crushing roller assembly.

[0010] A further embodiment is that the leveling mechanism includes a fixed frame and a leveling plate. The fixed frame is fixedly installed on the top of the conveyor belt, and the inner cavity of the fixed frame is provided with a connecting plate that can be raised and lowered. The leveling plate is installed at the bottom of the connecting plate.

[0011] A further option is that the spreader is angled, with the material inlet end of the spreader lower than its material outlet end.

[0012] A further embodiment is that the top of the fixed frame is threaded with a screw rod that passes through the fixed frame, the top of the screw rod is fixedly connected with a handle, and the bottom of the handle is movably connected to a connecting plate.

[0013] A further embodiment is that the bottom inner wall of the fixed frame is uniformly provided with a dispersion plate on one side of the spreading plate to disperse the crushed material.

[0014] The beneficial effects of this utility model are:

[0015] This invention achieves two-stage crushing of materials by setting a primary crushing roller group and two secondary crushing roller groups in the crushing box, which greatly improves the crushing efficiency and ensures the crushing effect.

[0016] This invention sets the discharge method of the crushing box to be horizontal, instead of the existing vertical discharge method. The material is conveyed to the discharge port by a conveyor belt. During the process of conveying to the discharge port, a leveling mechanism is set up. The material passes through the dispersing plate of the leveling mechanism and is dispersed by the dispersing plate. Then it passes through the leveling plate of the leveling mechanism and is leveled by the leveling plate before being discharged. The above discharge method can avoid the crushed material from accumulating in large quantities at the vertically set discharge port, thus avoiding blockage of the discharge port. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a raw material crushing device for compound fertilizer production provided in this embodiment of the utility model;

[0018] Figure 2A rear-view three-dimensional structural schematic diagram of the leveling mechanism provided in this embodiment of the utility model;

[0019] Figure 3 A front-view three-dimensional structural schematic diagram of the leveling mechanism provided in this embodiment of the utility model;

[0020] Figure labels: 1-Grinding box; 10-Baffle; 100-Connecting port; 11-Grinding chamber; 12-Discharge chamber; 120-Discharge port; 20-First-stage grinding roller assembly; 21-Second-stage grinding roller assembly; 22-Auxiliary baffle; 23-Diverter baffle; 24-Auxiliary feeding hopper; 3-Conveyor belt; 30-Drive roller; 31-Bearing seat; 40-Fixing frame; 41-Spreading plate; 42-Connecting plate; 43-Screw; 44-Rotator; 45-Dispersion plate; 5-Feed inlet. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] like Figure 1-3 As shown, one embodiment of this utility model discloses a raw material crushing device for compound fertilizer production, including a crushing box 1, a feed inlet 5 at the top of the crushing box 1, a partition 10 inside the crushing box 1, the partition 10 dividing the interior of the crushing box 1 from top to bottom into a crushing chamber 11 and a discharge chamber 12, the crushing chamber 11 is provided with a multi-stage crushing mechanism for crushing raw materials; a discharge port 120 is provided on one side of the discharge chamber 12.

[0023] The multi-stage crushing mechanism includes a primary crushing roller group 20 and a secondary crushing roller group 21, both fixedly installed inside the crushing box 1. Two auxiliary baffles 22 are symmetrically distributed between the primary crushing roller group 20 and the secondary crushing roller group 21, and a diversion baffle 23 is set between the two auxiliary baffles 22. The diversion baffle 23 and the auxiliary baffles 22 on both sides form auxiliary feeding hoppers 24 respectively. The secondary crushing roller group 21 is configured as two groups, and the two groups of secondary crushing roller groups 21 are respectively set directly above the two auxiliary feeding hoppers 24. The diversion baffle 23 is inverted V-shaped, and the top of the diversion baffle 23 is located directly below the primary crushing roller group 20.

[0024] It should be noted that in this embodiment, the primary crushing roller group and the two secondary crushing roller groups are controlled by an external control terminal to rotate their respective rollers.

[0025] This embodiment, through the above-described setup, enables the activation of a primary crushing roller group and two secondary crushing roller groups. Raw materials for compound fertilizer production are then fed into the crushing box through the inlet and enter the crushing chamber. As the material falls within the crushing chamber, it undergoes primary crushing by the primary crushing roller group. The material, after primary crushing, continues to fall and is diverted by the diversion baffle to the auxiliary discharge hoppers on both sides. It then falls onto the two secondary crushing roller groups, where the material undergoes secondary crushing by activation. This significantly improves the efficiency of material crushing and ensures the effectiveness of the crushing process.

[0026] The partition 10 is provided with a through-hole 100, through which the crushing chamber 11 and the discharge chamber 12 are connected.

[0027] A conveyor belt 3 for conveying the crushed material is installed inside the discharge chamber 12. The conveyor belt 3 is tensioned on two drive rollers 30, and the two ends of the drive rollers 30 are hinged to two corresponding bearing seats 31. The input end of the conveyor belt 3 is located below the connecting port 100, and the output end of the conveyor belt 3 extends to the discharge port 120. A leveling mechanism for spreading the crushed material is provided on the conveyor belt 3. The leveling mechanism includes a fixed frame 40 and a leveling plate 41. The fixed frame 40 is fixedly installed on the top of the conveyor belt 3. The inner cavity of the fixed frame 40 is equipped with a connecting plate 42 that can be raised and lowered. The leveling plate 41 is installed at the bottom of the connecting plate 42.

[0028] This embodiment, through the above-described configuration, allows the pulverized material to continue feeding into the pulverizing chamber and entering the discharge chamber through the connecting port, eventually falling onto the input end of the conveyor belt. The conveyor belt is then activated, transporting the material towards the discharge port. Before reaching the discharge port, the material passes through the dispersing plate of the leveling mechanism, where it is dispersed. It then passes through the leveling plate of the leveling mechanism, where it is flattened onto the conveyor belt and continues to be transported towards the discharge port until it reaches the discharge port of the discharge chamber, completing the discharge process. This discharge method avoids the accumulation of pulverized material at the vertically positioned discharge port, preventing blockage and the need for manual leveling. Furthermore, the leveled material facilitates subsequent processing.

[0029] In this embodiment, the spreading plate 41 is set at an angle, and the material inlet end of the spreading plate 41 is lower than its material outlet end.

[0030] This embodiment uses an inclined slab to flatten the crushed material conveyed on the conveyor belt, preventing the crushed material from accumulating and clogging the discharge port.

[0031] In this embodiment, the top of the fixed frame 40 is threaded with a screw 43 that passes through the fixed frame 40, the top of the screw 43 is fixedly connected with a handle 44, and the bottom of the handle 44 is movably connected to the connecting plate 42.

[0032] In this embodiment, the screw can be rotated by rotating the throttle, thereby adjusting the height of the connecting plate and the flatbed.

[0033] In this embodiment, the bottom inner wall of the fixed frame 40 is uniformly provided with a dispersion plate 45 on one side of the spreading plate 41 to disperse the crushed material.

[0034] In this embodiment, the above-described configuration enables the pulverized material conveyed on the conveyor belt to be dispersed by a dispersing plate before being spread out, thus allowing it to be evenly spread.

[0035] Finally, it should be noted that the above description only details specific embodiments of this utility model. However, this utility model is not limited to the specific embodiments described above. Equivalent modifications and substitutions made to this utility model by those skilled in the art are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model are covered within the scope of this utility model.

Claims

1. A raw material crushing device for compound fertilizer production, comprising a crushing box (1), wherein a feed inlet (5) is provided on the top of the crushing box (1), characterized in that: The crushing box (1) is provided with a partition (10) inside, which divides the inside of the crushing box (1) from top to bottom into a crushing chamber (11) and a discharge chamber (12). The crushing chamber (11) is provided with a multi-stage crushing mechanism for crushing raw materials. The discharge chamber (12) is provided with a discharge port (120) on one side. The multi-stage crushing mechanism includes a primary crushing roller group (20) and a secondary crushing roller group (21) both fixedly installed inside the crushing box (1). Two auxiliary baffles (22) are symmetrically distributed between the primary crushing roller group (20) and the secondary crushing roller group (21), and a diversion baffle (23) is installed between the two auxiliary baffles (22). The diversion baffle (23) and the auxiliary baffles (22) on both sides respectively form auxiliary feeding hoppers (24). The secondary crushing roller group (21) is configured as two groups, and the two groups of secondary crushing roller groups (21) are respectively installed directly above the two auxiliary feeding hoppers (24). The partition (10) is provided with a through-hole (100), and the crushing chamber (11) and the discharge chamber (12) are connected through the through-hole (100); The discharge chamber (12) is provided with a conveyor belt (3) for conveying the crushed material. The conveyor belt (3) is tensioned on two drive rollers (30). The two ends of the drive rollers (30) are hinged to two corresponding bearing seats (31). The input end of the conveyor belt (3) is located below the communication port (100), and the output end of the conveyor belt (3) extends to the discharge port (120). The conveyor belt (3) is equipped with a leveling mechanism for leveling the crushed material.

2. The raw material crushing device for compound fertilizer production according to claim 1, characterized in that: The diversion baffle (23) is in the shape of an inverted V, and the top of the diversion baffle (23) is located directly below the primary crushing roller group (20).

3. The raw material crushing device for compound fertilizer production according to claim 1, characterized in that: Each of the leveling mechanisms includes a fixed frame (40) and a leveling plate (41). The fixed frame (40) is fixedly installed on the top of the conveyor belt (3). The inner cavity of the fixed frame (40) is provided with a connecting plate (42) that can be raised and lowered. The leveling plate (41) is installed at the bottom of the connecting plate (42).

4. The raw material crushing device for compound fertilizer production according to claim 3, characterized in that: The spreading plate (41) is set at an angle, and the material inlet end of the spreading plate (41) is lower than its material outlet end.

5. The raw material crushing device for compound fertilizer production according to claim 3, characterized in that: The top of the fixed frame (40) is threaded with a screw rod (43) that passes through the fixed frame (40). The top of the screw rod (43) is fixedly connected with a handle (44), and the bottom of the handle (44) is movably connected to the connecting plate (42).

6. The raw material crushing device for compound fertilizer production according to claim 3, characterized in that: The bottom inner wall of the fixed frame (40) is uniformly provided with a dispersion plate (45) on one side of the spreading plate (41) to disperse the crushed material.

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