Screening machine for drying fertilizer

Abstract

The utility model discloses a screening machine for drying fertilizer, which is characterized in that a discharge hole is formed in one end, close to a hydraulic cylinder, in a screening box, and an outer cover is arranged at the discharge hole of the screening box; a roller is arranged in the screening box, a gap is formed between the outer side face of the roller and the inner surface of the screening box, a spiral partition plate is arranged on the outer side face of the roller and divides the space between the roller and the screening box into spiral channels, and the side face, away from the roller, of the spiral partition plate can make contact with or not make contact with the inner surface of the screening box. A bearing is arranged outside the end, away from the discharging port, of the roller, a bearing inner ring is fixed outside the roller, and a bearing outer ring is fixed in the screening box. A driving motor is fixed to the end face of the end, away from the discharging port, of the roller and fixed to the screening box. A feeding hopper is arranged on the screening box and close to the bearing; screen holes are formed in the roller, a discharging opening is formed in the end, close to the discharging opening, of the roller, and an inner cover is arranged in the discharging opening of the roller. The device has the advantages that the screening efficiency is improved through a dispersion structure.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer production, in particular to a screening machine for drying fertilizers. Background Art

[0002] During the use of fertilizers, since fertilizers with too large particles are not easy to decompose in the soil, it is necessary to screen the fertilizers during reproduction to screen out the fertilizers with too large particles to ensure the production quality of the fertilizers. Usually, a screening machine is needed to screen the fertilizers. The existing drum screening machine rotates the drum to facilitate screening, but the fertilizers all enter the drum at once. There is no dispersion structure during the rotation of the drum, so it takes a long time to screen the fertilizers evenly after feeding. Based on this, an improved technology to improve screening efficiency is proposed. Utility Model Content

[0003] The utility model solves the above technical problems and provides a screening machine for dry fertilizers with a dispersed structure and capable of accelerating the screening efficiency.

[0004] In order to solve the above technical problems, the utility model provides a technical solution: a screening machine for drying fertilizers, comprising a supporting bottom plate and a screening box located above the supporting bottom plate, two supporting legs are hinged at one side of the bottom of the screening box, a hydraulic cylinder is hinged at the other side of the bottom of the screening box, the supporting legs are fixed to the supporting bottom plate at the bottom, and the hydraulic cylinder is hinged to the supporting bottom plate at the bottom;

[0005] A discharge port is provided at one end of the screening box close to the hydraulic cylinder, and an outer cover is provided at the discharge port of the screening box; a drum is provided in the screening box, a gap is provided between the outer side of the drum and the inner surface of the screening box, a spiral partition plate is provided on the outer side of the drum, the spiral partition plate divides the space between the drum and the screening box into a spiral channel, and the side of the spiral partition plate away from the drum can be in contact with or not in contact with the inner surface of the screening box;

[0006] A bearing is arranged outside the end of the drum away from the discharge port, the inner ring of the bearing is fixed outside the drum, and the outer ring of the bearing is fixed inside the screening box;

[0007] A driving motor is fixed on the end surface of the drum away from the discharge port, and the driving motor is fixed on the screening box;

[0008] A feed hopper is provided on the screening box and close to the bearing; a screen hole is provided on the drum, a discharge port is provided at one end of the drum close to the discharge port, and an inner cover is provided in the discharge port of the drum.

[0009] Furthermore, the hydraulic cylinder is located between two supporting legs, and the two supporting legs are located at the front and rear sides of the screening box to form a triangular supporting structure, which provides stable support with minimal material consumption. Two hydraulic cylinders can also be provided, hinged between the screening box and the drum.

[0010] Furthermore, the outer cover is threadedly connected to the screening box for easy disassembly, or is connected in a hinged manner and the opening is sealed.

[0011] Furthermore, the inner cover is threadedly connected to the drum for easy disassembly, or is connected in a hinged manner and the opening is sealed.

[0012] Furthermore, the driving motor is a stepping motor, which can rotate forward or reverse to drive the drum to rotate in two directions.

[0013] Furthermore, a manhole is provided on the outer cover to facilitate observation of the rotation of the internal drum.

[0014] Furthermore, the screening box is a transparent structure, which makes it easy to observe the rotation of the internal drum.

[0015] The advantage of the utility model over the prior art is that when fertilizer is put into the feed hopper, the fertilizer will enter the gap between the drum and the screening box under the action of gravity, and will be separated and broken up by the spiral partition plate, so that it can roll on the drum for a longer time and the screening will be more detailed, so that the final screening effect is better and the overall time consumption is shorter. After the screening is completed, fertilizers of different sizes are discharged through the discharge port and the discharge port respectively to complete the screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a three-dimensional structural schematic diagram of a screening machine for drying fertilizers.

[0017] Figure 2 The utility model is a schematic diagram of a screening box and a drum structure of a screening machine for drying fertilizers.

[0018] Figure 3 The utility model is a schematic diagram of the main structure of a screening box and a drum of a screening machine for drying fertilizers.

[0019] As shown in the figure: 1. Support bottom plate, 2. Screening box, 3. Support legs, 4. Hydraulic cylinder, 5. Discharge port, 6. Outer cover, 7. Roller, 8. Spiral partition plate, 9. Bearing, 10. Drive motor, 11. Feed hopper, 12. Sieve hole, 13. Discharge port, 14. Inner cover, 15. Manhole. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Combined with Figure 1A screening machine for drying fertilizers comprises a supporting bottom plate 1 and a screening box 2 located above the supporting bottom plate 1. The screening box is also cylindrical. Two supporting legs 3 are hinged at one side of the bottom of the screening box 2. A hydraulic cylinder 4 is hinged at the other side of the bottom of the screening box 2. The supporting legs 3 are fixed to the supporting bottom plate 1 at the bottom. The hydraulic cylinder 4 is hinged to the supporting bottom plate 1 at the bottom. The piston rod of the hydraulic cylinder moves telescopically to drive one end of the screening box to tilt downward or upward.

[0022] Combined with Figure 2 , Figure 3 A discharge port 5 is provided in the screening box 2 and at one end close to the hydraulic cylinder 4, and an outer cover 6 is provided at the discharge port 5 of the screening box 2; a drum 7 is provided in the screening box 2, and a gap is provided between the outer side of the drum 7 and the inner surface of the screening box, and a spiral partition plate 8 is provided on the outer side of the drum 7, and the spiral partition plate divides the space between the drum and the screening box into a spiral channel to disperse the fertilizer, and the side of the spiral partition plate away from the drum can be in contact with or not in contact with the inner surface of the screening box;

[0023] A bearing 9 is provided outside the end of the drum 7 away from the discharge port 5, the inner ring of the bearing is fixed outside the drum, and the outer ring of the bearing 9 is fixed inside the screening box 2, so that the drum and the screening box can be firmly connected and can rotate relative to each other;

[0024] A driving motor 10 is fixed to the end surface of the drum 7 away from the discharge port 5. The driving motor 10 is fixed to the screening box 2. When the driving motor is started, the drum is driven to rotate.

[0025] A feed hopper 11 is provided on the screening box 2 and near the bearing 9; a sieve hole 12 is provided on the drum 7, and the sieve holes are spread all over the outside of the drum. A discharge port 13 is provided at one end of the drum 7 near the discharge port 5, and there is no sieve hole at the end of the drum with the discharge port, which is conducive to collecting and discharging the small granular fertilizer inside. An inner cover 14 is provided inside the discharge port 13 of the drum 7.

[0026] As an embodiment of the utility model, the hydraulic cylinder 4 is located between the two supporting legs 3, and the two supporting legs 3 are located at the front and rear sides of the screening box 2, forming a triangular supporting structure, which provides stable support and uses minimal material. Two hydraulic cylinders 4 can also be provided, which are hinged between the screening box 4 and the drum 7.

[0027] Furthermore, the outer cover 6 is threadedly connected to the screening box 2 for easy disassembly, or is connected in a hinged manner and with the opening sealed.

[0028] Furthermore, the inner cover 14 is threadedly connected to the drum 7 for easy disassembly, or is connected by a hinged manner and sealing the opening.

[0029] As an embodiment of the present invention, the driving motor 10 is a stepping motor, which can rotate forward or reverse to drive the drum to rotate in two directions.

[0030] As an embodiment of the utility model, a manhole 15 is provided on the outer cover 6, which is convenient for observing the rotation of the inner drum.

[0031] As an embodiment of the present invention, the screening box 2 is a transparent structure, which makes it easy to observe the rotation of the internal drum.

[0032] During the specific implementation of the utility model, the setting is carried out according to the fertilizer situation. Generally speaking, there are relatively few large-particle fertilizers that do not meet the factory standards, while there are more small-particle fertilizers that meet the factory standards. Therefore, the screening process is mainly between the screening box and the drum, and the drum is larger in capacity, which can accommodate more small-particle fertilizers that meet the factory standards, and when the drum is rotating, the lower granular fertilizer will be located in the drum through centrifugal force; when the screening is completed, the hydraulic cylinder starts to retract, driving the screening box and one end of the drum to tilt downward, then the driving motor stops rotating, and then the outer cover and the inner cover are opened respectively, and fertilizers of different sizes are discharged through the discharge port and the discharge port respectively, and the screening is completed.

[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A screening machine for drying fertilizers, comprising a supporting base plate (1) and a screening box (2) located above the supporting base plate (1), Features: Two support legs (3) are hingedly connected at one side of the bottom of the screening box (2), and a hydraulic cylinder (4) is hingedly connected at the other side of the bottom of the screening box (2). The support legs (3) are fixed to the support base plate (1) at the bottom, and the hydraulic cylinder (4) is hinged to the support base plate (1) at the bottom. A discharge port (5) is provided in the screening box (2) and at one end close to the hydraulic cylinder (4). An outer cover (6) is provided at the discharge port (5) of the screening box (2). A roller (7) is provided in the screening box (2), and a spiral partition plate (8) is provided on the outer side of the roller (7). 7) A bearing (9) is provided on the outside of the end away from the discharge port (5), and the outer ring of the bearing (9) is fixed in the screening box (2); a driving motor (10) is provided on the end surface of the end of the roller (7) away from the discharge port (5), and the driving motor (10) is fixed on the screening box (2); a feed hopper (11) is provided on the screening box (2) and close to the bearing (9); a sieve hole (12) is provided on the roller (7), and a discharge port (13) is provided at the end of the roller (7) close to the discharge port (5), and an inner cover (14) is provided in the discharge port (13) of the roller (7).

2. A screening machine for dry fertilizer according to claim 1, Features: The hydraulic cylinder (4) is located between two supporting legs (3), and the two supporting legs (3) are located at the front and rear sides of the screening box (2).

3. A screening machine for dry fertilizer according to claim 1, Features: The outer cover (6) is threadedly connected to the screening box (2).

4. A screening machine for dry fertilizer according to claim 3, Features: The inner cover (14) is threadedly connected to the drum (7).

5. A screening machine for dry fertilizer according to claim 1, Features: The driving motor (10) is a stepping motor.

6. A screening machine for dry fertilizer according to claim 1, Features: The outer cover (6) is provided with a manhole (15).

7. A screening machine for dry fertilizer according to claim 1, Features: The screening box (2) is a transparent structure.

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