Screening device for phosphate fertilizer production

Abstract

The utility model relates to the technical field of screening devices, and provides a screening device for phosphate fertilizer production, which comprises a support, a rotating plate, an upper sealing cover, a screen component and a lower sealing cover, the rotating plate is rotatably connected to the inner side of the support, and two discharge ports are formed in the surface of the rotating plate; the upper sealing cover is detachably connected to the upper surface of the rotating plate and surrounds the two discharging openings. The screen mesh assembly comprises a first screen mesh, a second screen mesh and a third screen mesh which are distributed from inside to outside and are detachably connected to the lower surface of the rotating plate, and the first screen mesh surrounds the two discharge ports; the swing type material screening machine has the advantages that material screening is conducted in a swing mode, namely, the rotating plate, the screen assembly, the upper sealing cover, the lower sealing cover, the upper hose, the discharging pipe and the lower hose swing synchronously, rapid discharging can be achieved, material stacking is prevented, the material screening efficiency is higher, and meanwhile phosphate fertilizer can be prevented from blocking the upper hose, the feeding pipe, the discharging opening, the discharging pipe and the lower hose.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a screening device for phosphate fertilizer production. Background Art

[0002] Phosphate fertilizer, also known as phosphate fertilizer, refers to a single-element chemical fertilizer containing phosphorus, primarily providing phosphorus nutrients to plants. The magnitude and speed of its effectiveness depend on factors such as the effective phosphorus pentoxide content, soil properties, fertilization method, and crop type. Phosphate fertilizers must be carefully screened during production to select the appropriate size.

[0003] Existing screening devices usually stir phosphate fertilizer to promote phosphate fertilizer screening, but this method is prone to material accumulation and high screening pressure, resulting in low screening efficiency of the device. There is an urgent need for a screening device for phosphate fertilizer production to solve the above problems. Utility Model Content

[0004] In view of the above technical problems existing in the prior art, a screening device for phosphate fertilizer production is provided, which solves the problems of easy material accumulation and high screening pressure, resulting in low screening efficiency of the device.

[0005] The purpose and effect of this utility model are achieved by the following specific technical means:

[0006] A screening device for phosphate fertilizer production, comprising:

[0007] Bracket;

[0008] A rotating plate, the rotating plate is rotatably connected to the inner side of the bracket, and two discharge ports are opened on the surface of the rotating plate;

[0009] an upper sealing cover, the upper sealing cover being detachably connected to the upper surface of the rotating plate and surrounding the two discharge ports;

[0010] A screen assembly, comprising a first screen, a second screen, and a third screen distributed from the inside to the outside and detachably connected to the lower surface of the rotating plate, wherein the first screen surrounds the two discharge ports;

[0011] The lower sealing cover covers the outside of the third screen and is detachably connected to the lower surface of the rotating plate.

[0012] Furthermore, a plurality of limiting rods are fixed to the outside of the first screen, the second screen and the third screen, and the plurality of limiting rods are in contact with the second screen, the third screen and the inner wall of the lower sealing cover respectively.

[0013] Furthermore, the upper sealing cover, the first screen, the second screen, the third screen and the lower sealing cover are all hemispherical.

[0014] Furthermore, the upper sealing cover and the lower sealing cover are both made of transparent hard plastic.

[0015] Furthermore, a rotating rod is fixed on the side of the rotating plate, a motor is fixed to one end of the rotating rod, and the other end is rotatably connected to the bracket. The motor is fixed on the bracket and is a reduction motor.

[0016] Furthermore, a feed pipe communicating with the upper sealing cover is fixed on the top, a hopper is fixed above the bracket, an upper hose communicating with the hopper is fixed at the bottom of the hopper, and the upper hose is flange-connected to the feed pipe.

[0017] Furthermore, a discharge pipe communicating with the lower sealing cover is fixed to the bottom of the lower sealing cover, and a lower hose is connected to the flange at the lower end of the discharge pipe.

[0018] Furthermore, the rotation angle a of the rotating plate ranges from [0, 90°].

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This screening device for phosphate fertilizer production adopts a swinging mode for screening, that is, the rotating plate, screen assembly, upper sealing cover, lower sealing cover, upper hose, discharge pipe and lower hose swing synchronously. First, it can quickly discharge materials and prevent material piling; second, the screening efficiency is higher; third, it can prevent the phosphate fertilizer from clogging the upper hose, feed pipe, discharge port, discharge pipe and lower hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall main cross-sectional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall main structure of the utility model;

[0023] Figure 3 It is a schematic side cross-sectional structure diagram of the rotating plate and screen assembly of the present invention.

[0024] Markings in the figure: bracket 1, rotating plate 2, rotating rod 3, motor 4, upper sealing cover 5, feed pipe 6, first screen 7, second screen 8, third screen 9, lower sealing cover 10, discharge pipe 11, lower hose 12, upper hose 13, hopper 14, discharge port 15, limit rod 16. DETAILED DESCRIPTION

[0025] See also Figure 1-3 , further illustrate the embodiments of the present utility model;

[0026] A screening device for phosphate fertilizer production, comprising: a bracket 1, a rotating plate 2, an upper sealing cover 5, a screen assembly and a lower sealing cover 10;

[0027] The rotating plate 2 is rotatably connected to the inner side of the bracket 1. In order to ensure a good screening effect, the rotation angle a of the rotating plate 2 ranges from [0, 90°], that is, the maximum upward and downward swing amplitudes of the rotating plate 2 are both 45°. The rotation angle a of the rotating plate 2 in this application is preferably 40°. Two discharge openings 15 are opened on the surface of the rotating plate 2. In order to make the device more automated, a rotating rod 3 is fixed on the side of the rotating plate 2. A motor 4 is fixed to one end of the rotating rod 3 and the other end is rotatably connected to the bracket 1. The motor 4 is fixed to the bracket 1 and is a reduction motor. When the motor 4 is started, it drives the rotating rod 3 to rotate, and the rotating rod 3 drives the rotating plate 2 to swing up and down, so that the device can screen phosphate fertilizer.

[0028] The upper sealing cover 5 is detachably connected (bolted, snap-fitted, etc.) to the upper surface of the rotating plate 2 and surrounds the two discharge ports 15. A feed pipe 6 communicating with the upper sealing cover 5 is fixed to the top of the upper sealing cover 5. A hopper 14 is fixed above the bracket 1. An upper hose 13 communicating with the upper sealing cover 5 is fixed to the bottom of the hopper 14. The upper hose 13 is flange-connected to the feed pipe 6. The phosphate fertilizer to be screened is poured into the hopper 14, and the phosphate fertilizer enters the upper sealing cover 5 along the hose 13 and is then discharged through the two discharge ports 15. When unloading, the rotating plate 2 is swung by starting the motor 4 (the specific operation is not repeated here). The rotating plate 2 will drive the upper sealing cover 5 and the upper hose 13 to swing together, which is conducive to rapid unloading and can prevent the phosphate fertilizer from blocking the upper hose 13, the feed pipe 6 and the discharge port 15. In addition, the diameter of the feed pipe 6 is much smaller than the bottom area of ​​the upper sealing cover 5. The phosphate fertilizer is transported through the upper hose 13 and the feed pipe 6, which can effectively control the unloading amount, thereby reducing the screening difficulty of the device.

[0029] The screen assembly includes a first screen 7, a second screen 8 and a third screen 9 distributed from the inside to the outside and all detachably connected (bolted, snap-fitted, etc.) to the lower surface of the rotating plate 2. In order to further improve the screening efficiency, the upper sealing cover 5, the first screen 7, the second screen 8, the third screen 9 and the lower sealing cover 10 are all arranged in a hemispherical shape; in order to facilitate the observation of the screening dynamics of the device, the upper sealing cover 5 and the lower sealing cover 10 are made of transparent hard plastic; the first screen 7 surrounds the two discharge ports 15, it should be noted that the mesh diameters of the first screen 7, the second screen 8 and the third screen 9 decrease in sequence, and the sizes of the first screen 7, the second screen 8 and the third screen 9 and the spacing therebetween can be set according to actual conditions; the lower sealing cover 10 covers the outside of the third screen 9 and is detachably connected (bolted, snap-fitted, etc.) to the lower surface of the rotating plate 2. The setting of the lower sealing cover 10 is to prevent the phosphate fertilizer being screened from being thrown out of the device. A discharge pipe 11 communicating with it is fixed at the bottom of the lower sealing cover 10. 1 The lower end flange is connected to the lower hose 12, and the lower end of the lower hose 12 can be fixed together with the charging barrel. The position of the charging barrel is lower than the height of the lower hose 12. When the rotating plate 2 swings, it will drive the first screen 7, the second screen 8, the third screen 9 and the sealing cover 10 to swing together. The material discharged through the discharge port 15 will enter the first screen 7, the second screen 8 and the third screen 9 in turn for screening layer by layer. A variety of phosphate fertilizers of different sizes can be screened out, and the phosphate fertilizer with the smallest particles (the amount of phosphate fertilizer of this size is the largest and is Standard phosphate fertilizer size) will enter the lower sealing cover 10. During the swinging process, the sealing cover 10 will discharge the phosphate fertilizer with the smallest particles through the discharge pipe 11 to the lower hose 12, and finally discharge it to the charging bucket through the lower hose 12 to collect these phosphate fertilizers. After the screening work is completed, the motor 4 is turned off, and when the rotating plate 2 stops rotating, the first screen 7, the second screen 8, the third screen 9 and the lower sealing cover 10 can be disassembled, and then the phosphate fertilizers in the first screen 7, the second screen 8 and the third screen 9 can be poured out.

[0030] In order to ensure the stability of the first screen 7, the second screen 8 and the third screen 9 when screening materials, a plurality of limit rods 16 are fixed to the outside of the first screen 7, the second screen 8 and the third screen 9, and the plurality of limit rods 16 are in contact with the second screen 8, the third screen 9 and the inner wall of the lower sealing cover 10 respectively, thereby extending the service life of the first screen 7, the second screen 8 and the third screen 9.

[0031] Compared with the prior art, the advantages of this application are:

[0032] The device adopts a swinging mode for screening, that is, the rotating plate 2, the screen assembly, the upper sealing cover 5, the lower sealing cover 10, the upper hose 13, the discharge pipe 11 and the lower hose 12 swing synchronously. First, the material can be discharged quickly to prevent pile-up; second, the screening efficiency is higher; third, the phosphate fertilizer can be prevented from blocking the upper hose 13, the feed pipe 6, the discharge port 15, the discharge pipe 11 and the lower hose 12.

Claims

1. A screening device for phosphate fertilizer production, characterized in that: include: Bracket (1); A rotating plate (2), the rotating plate (2) is rotatably connected to the inner side of the bracket (1), and two discharge openings (15) are opened on the surface of the rotating plate (2); An upper sealing cover (5), the upper sealing cover (5) being detachably connected to the upper surface of the rotating plate (2) and surrounding the two discharge ports (15); A screen assembly, the screen assembly comprising a first screen (7), a second screen (8) and a third screen (9) which are distributed from the inside to the outside and are all detachably connected to the lower surface of the rotating plate (2), the first screen (7) surrounding the two discharge ports (15); A lower sealing cover (10) covers the outside of the third screen (9) and is detachably connected to the lower surface of the rotating plate (2).

2. A screening device for phosphate fertilizer production according to claim 1, characterized in that: A plurality of limiting rods (16) are fixed to the outside of the first screen (7), the second screen (8) and the third screen (9), and the plurality of limiting rods (16) are in contact with the second screen (8), the third screen (9) and the inner wall of the lower sealing cover (10) respectively.

3. A screening device for phosphate fertilizer production according to claim 1, characterized in that: The upper sealing cover (5), the first screen (7), the second screen (8), the third screen (9) and the lower sealing cover (10) are all hemispherical.

4. A screening device for phosphate fertilizer production according to claim 1, characterized in that: The upper sealing cover (5) and the lower sealing cover (10) are both made of transparent hard plastic.

5. A screening device for phosphate fertilizer production according to claim 1, characterized in that: A rotating rod (3) is fixedly inserted into the upper side of the rotating plate (2); a motor (4) is fixedly mounted on one end of the rotating rod (3); and the other end is rotatably connected to the bracket (1); the motor (4) is fixed on the bracket (1), and the motor (4) is a reduction motor.

6. A screening device for phosphate fertilizer production according to claim 1, characterized in that: A feed pipe (6) communicating with the upper sealing cover (5) is fixed on the top of the upper sealing cover (5), a hopper (14) is fixed above the bracket (1), an upper hose (13) communicating with the hopper (14) is fixed on the bottom of the hopper (14), and the upper hose (13) is flange-connected to the feed pipe (6).

7. A screening device for phosphate fertilizer production according to claim 1, characterized in that: A discharge pipe (11) communicating with the lower sealing cover (10) is fixed at the bottom thereof, and a lower hose (12) is connected to the lower end of the discharge pipe (11) by a flange.

8. A screening device for phosphate fertilizer production according to claim 1, characterized in that: The rotation angle a of the rotating plate (2) is in the range of [0, 90°].

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