CN215656275U - A screening plant for sieving diammonium phosphate granule - Google Patents

Abstract

The utility model discloses a screening device for screening diammonium phosphate particles, which comprises a screening machine, wherein the screening machine comprises a box body, and a first screening net and a second screening net which are arranged in the box body, the first screening net and the second screening net are obliquely arranged in the box body at intervals, and an included angle between the first screening net and the horizontal plane is 33 degrees. According to the utility model, the retention time of the material on the screen is prolonged, the material rapidly passes through the screen, and the particles trapped on the screen can rapidly slide down, so that the screen is effectively prevented from being blocked by the material, the damage of the particles caused by extrusion among the particles is reduced, and the appearance quality of the diammonium phosphate particles is improved; the screening efficiency is increased, the screening working time is reduced, the stable operation of the screening device is facilitated, and the appearance quality of the diammonium phosphate product is ensured to be continuously stable so as to meet the requirements of customers.

Description

A screening plant for sieving diammonium phosphate granule

Technical Field

The utility model relates to the technical field of ammonium phosphate fertilizer production, in particular to a screening device for screening diammonium phosphate particles.

Background

With the rapid development of the phosphorus compound fertilizer industry in China, the productivity of diammonium phosphate is seriously excessive, and the market competition is fierce. The uniformity, the roundness, the color, the crystal feeling and the like of the appearance of the diammonium phosphate product particles gradually become important means for improving the market competitiveness. Therefore, the improvement of the appearance quality of the product is of great significance. And the appearance quality of the product is directly influenced by the screening effect of the screening process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a screening device for screening diammonium phosphate particles, aiming at the defects in the prior art.

The utility model discloses a screening device for screening diammonium phosphate particles, which comprises a screening machine, wherein the screening machine comprises a box body, and a first screening net and a second screening net which are arranged in the box body, and is characterized in that: the first screening net and the second screening net are obliquely arranged in the box at intervals, and the included angle between the first screening net and the horizontal plane and the included angle between the second screening net and the horizontal plane are 33 degrees.

Further, the aperture of the first screening net is 4.2mm, and the aperture of the second screening net is 2.8 mm.

Further, screening plant includes that dry bucket carries the machine, dry bucket carry the feed opening of machine with the feed inlet of box is linked together.

Furthermore, be equipped with on the box with first screening net corresponds first discharge gate, first discharge gate is linked together with the feed inlet of first breaker.

Furthermore, the box body is provided with a second discharge hole corresponding to the second screening net, and a cooling conveying belt is arranged below the second discharge hole.

Further, the bottom of box is equipped with the third discharge gate, the third discharge gate is linked together with the feed inlet of second breaker.

Furthermore, a subdivided metering belt is arranged below the first crusher and the second crusher.

Furthermore, a plurality of vibration exciters are arranged at the top of the box body.

The utility model has the following beneficial effects: according to the utility model, the first screening net and the second screening net are obliquely arranged in the box body of the screening machine at intervals, and the included angle between the first screening net and the horizontal plane and the included angle between the second screening net and the horizontal plane are 33 degrees, so that the retention time of materials on the screen is prolonged, the materials quickly pass through the screen, particles intercepted on the screen can quickly slide down, the screen is effectively prevented from being blocked by the materials, meanwhile, the particle damage caused by extrusion among particles is reduced, and the appearance quality of diammonium phosphate particles is improved; the screening efficiency is increased, the screening working time is reduced, the stable operation of the screening device is facilitated, and the appearance quality of the diammonium phosphate product is ensured to be continuously stable so as to meet the requirements of customers.

Drawings

FIG. 1 is a schematic diagram of a screening device for screening diammonium phosphate granules;

1. screening machine; 11. a box body; 111. a first screening net; 112. a second screening mesh; 113. a first discharge port; 114. a second discharge port; 115. a third discharge port; 116. a vibration exciter; 2. drying the bucket elevator; 3. a first crusher; 4. cooling the transfer belt; 5. a second crusher; 6. the metering belt is subdivided.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the screening device for screening diammonium phosphate particles of the present invention includes a screening machine 1, the screening machine 1 includes a box 11 and a first screening net 111 and a second screening net 112 disposed in the box 11, the first screening net 111 and the second screening net 112 are disposed in the box 11 at intervals in an inclined manner, and an included angle between the first screening net 111 and the horizontal plane is 33 °, the angle is designed to combine the quality of diammonium phosphate particles, the density is uniform, the diammonium phosphate particles are subjected to stress analysis, the retention time of the material on the screen is prolonged and the material can rapidly pass through the screen, the particles trapped on the screen can rapidly and automatically slide down according to the mechanical balance principle, the screen is effectively prevented from being blocked by the material, meanwhile, particle breakage caused by extrusion between particles is reduced, and the appearance quality of diammonium phosphate particles is improved; the screening efficiency is increased, the screening working time is reduced, the stable operation of the screening device is facilitated, and further the continuous and stable appearance quality of the diammonium phosphate product is ensured to meet the requirements of customers.

The pore sizes of the first sieving net 111 and the second sieving net 112 may be various, and are not limited herein, in this embodiment, in combination with the actual production yield and for achieving the best sieving efficiency, the pore size of the first sieving net 111 may be 4.2mm, and the pore size of the second sieving net 112 may be 2.8mm, so that the qualified rate of the particle size of the diammonium phosphate particles is increased to more than 98%.

In order to reduce the influence of the moisture in the diammonium phosphate particles on the screening efficiency, before the screening process, the moisture in the diammonium phosphate particles needs to be controlled, and various methods for controlling the moisture exist, which are not limited herein.

In order to reasonably and effectively utilize unqualified diammonium phosphate particles, a first discharge port 113 corresponding to the first sieving net 111 can be arranged on the box body 11, a second discharge port 114 corresponding to the second sieving net 112 can be arranged on the box body 11, and a third discharge port 115 can be arranged at the bottom of the box body 11; the first discharge port 113 is communicated with the feed port of the first crusher 3; a cooling conveying belt 4 is arranged below the second discharge port 114; the third discharge port 115 is communicated with the feed port of the second crusher 5, after the diammonium phosphate material is sieved by the sieving machine 1, the material discharged from the first discharge port 113 is large-particle diammonium phosphate, the material discharged from the second discharge port 114 is qualified diammonium phosphate particles with the particle size, the material discharged from the third discharge port 115 is small-particle diammonium phosphate, the qualified ammonium phosphate particles are conveyed to the cooling conveying belt 4, the unqualified large-particle diammonium phosphate and the unqualified small-particle diammonium phosphate are respectively conveyed to the first crusher 3 and the second crusher 5 for crushing, and the crushed diammonium phosphate particles are returned to a diammonium phosphate granulation system through the subdivided metering belt 6.

In order to smoothly perform the screening process and improve the production efficiency, a plurality of vibration exciters 116 may be provided at the top of the case 11.

The above is not relevant and is applicable to the prior art.

While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the utility model, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the utility model as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.

Claims (8)

1. A screening device for screening diammonium phosphate particles, comprising a screening machine (1), said screening machine (1) comprising a box (11) and a first screening net (111) and a second screening net (112) arranged inside said box (11), characterized in that: the first screening net (111) and the second screening net (112) are obliquely arranged in the box body (11) at intervals, and the included angle between the first screening net (111) and the horizontal plane and the included angle between the second screening net (112) and the horizontal plane are 33 degrees.

2. A screening apparatus for screening diammonium phosphate granules according to claim 1, wherein: the aperture of the first screening net (111) is 4.2mm, and the aperture of the second screening net (112) is 2.8 mm.

3. A screening apparatus for screening diammonium phosphate granules according to claim 1, wherein: screening plant includes that dry bucket carries machine (2), dry bucket carry the feed opening of machine (2) with the feed inlet of box (11) is linked together.

4. A screening apparatus for screening diammonium phosphate granules according to claim 1, wherein: the box body (11) is provided with a first discharge hole (113) corresponding to the first screening net (111), and the first discharge hole (113) is communicated with a feed inlet of the first crusher (3).

5. A screening apparatus for screening diammonium phosphate granules according to claim 4, wherein: and a second discharge hole (114) corresponding to the second screening net (112) is formed in the box body (11), and a cooling transmission belt (4) is arranged below the second discharge hole (114).

6. A screening apparatus for screening diammonium phosphate granules according to claim 5, wherein: the bottom of the box body (11) is provided with a third discharge hole (115), and the third discharge hole (115) is communicated with a feed inlet of the second crusher (5).

7. A screening apparatus for screening diammonium phosphate granules according to claim 6, wherein: a subdivision metering belt (6) is arranged below the first crusher (3) and the second crusher (5).

8. A screening apparatus for screening diammonium phosphate granules according to claim 1, wherein: the top of the box body (11) is provided with a plurality of vibration exciters (116).

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