Drying device for aluminum dihydrogen tripolyphosphate

Abstract

The utility model discloses a drying device for aluminum dihydrogen tripolyphosphate, comprising a boiling chamber and a cyclone separator, wherein a base is arranged at the bottom of the boiling chamber, and a blower is fixed at the edge of the top surface of the base; in the utility model, the boiling chamber, the cyclone separator, the heater and the blower are used to form the drying device for aluminum dihydrogen tripolyphosphate, and by starting the blower and a plurality of electric heating rods built in the heater, the blower is prompted to heat cold air through the plurality of electric heating rods and then send it into the boiling chamber, so that the rising hot air contacts the wet material in the falling stage, at this time, since a plurality of arc-shaped rotating blades are arranged around the bottom surface of the distribution plate rotating in the support ring, and a blowing nozzle inclined corresponding to the rotating blades is arranged at the heater, as the blowing nozzle transports hot air to the boiling chamber, the hot air acts on the plurality of rotating blades to drive the distribution plate to rotate in the support ring, until the falling wet material contacts the rotating distribution plate to be fully dispersed.

Description

Technical Field

[0001] The utility model relates to the field of aluminum dihydrogen tripolyphosphate, in particular to a drying device for aluminum dihydrogen tripolyphosphate. Background Art

[0002] Aluminum dihydrogen tripolyphosphate is an efficient and environmentally friendly anti-rust pigment and an ideal substitute for toxic pigments such as red lead and chromate. At present, aluminum dihydrogen tripolyphosphate is generally prepared by dehydration polymerization of aluminum oxide or aluminum hydroxide and phosphoric acid. The specific method is as follows: first, aluminum oxide or aluminum hydroxide is reacted with an aqueous solution of phosphoric acid in a certain molar ratio to prepare an intermediate acid aluminum phosphate; then the intermediate is calcined to obtain anhydrous aluminum dihydrogen tripolyphosphate; the anhydrous aluminum dihydrogen tripolyphosphate is hydrated, ground, and further washed, filtered, dried, and crushed to finally obtain a relatively pure aluminum dihydrogen tripolyphosphate.

[0003] After searching, publication number CN216522932U discloses a drying device for producing aluminum dihydrogen tripolyphosphate. Aluminum dihydrogen tripolyphosphate falls into the device body from the feed port. The guide plates arranged from top to bottom in the device body can make the aluminum dihydrogen tripolyphosphate fall along the guide plates to the guide plates of the next level. While the aluminum dihydrogen tripolyphosphate falls along the guide plates, the hot air ejected from the jet disk can dry the aluminum dihydrogen tripolyphosphate on the guide plates. After falling and drying step by step, the aluminum dihydrogen tripolyphosphate can be dried more evenly and the drying effect is better.

[0004] The above-mentioned drying device for aluminum dihydrogen tripolyphosphate mainly adopts a plurality of guide plates arranged from top to bottom in the device body. In the actual drying stage of aluminum dihydrogen tripolyphosphate, due to the insufficient fluidity of the wet aluminum dihydrogen tripolyphosphate, as the hot air continuously passes through the guide plates, a large amount of aluminum dihydrogen tripolyphosphate is easily attached to the surfaces of the plurality of guide plates, which eventually leads to the phenomenon that the aluminum dihydrogen tripolyphosphate cannot be removed after drying.

[0005] To this end, a drying device for aluminum dihydrogen tripolyphosphate is proposed, which has the advantages of convenient decentralized drying and unobstructed discharging, thereby solving the problems in the above-mentioned background technology. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and provides a drying device for aluminum dihydrogen tripolyphosphate.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a drying device for aluminum dihydrogen tripolyphosphate, comprising a boiling chamber and a cyclone separator, a base is arranged at the bottom of the boiling chamber, and a blower is fixed at the edge of the top surface of the base, a heater is fixedly connected to the left side of the lower part of the boiling chamber, and the left end of the heater is connected to the air outlet of the blower, and a blowing nozzle extending to the inside of the boiling chamber is arranged at the right end of the heater, a plurality of electric heating rods are evenly arranged inside the heater, and a A feed pipe, and the top surface of the boiling chamber is connected with a bent pipe, one end of the bent pipe is connected with a cyclone separator through a flange, and an exhaust pipe is arranged on the top of the cyclone separator, and a drop pipe is connected with the bottom of the cyclone separator, a discharge pipe is connected with the right side of the lower part of the boiling chamber, and the discharge pipe is connected with the drop pipe, a support ring is welded inside the boiling chamber, and a distribution plate is rotatably arranged inside the support ring, a plurality of rotating blades are arranged around the bottom surface of the distribution plate, and the air outlet of the blowing nozzle is inclined to face the rotating blades of the distribution plate.

[0008] As a further description of the above technical solution: one end of the feed pipe extends to the interior of the boiling chamber, and the top surface of the other end of the feed pipe is connected to a trumpet cover.

[0009] As a further description of the above technical solution: an annular groove is provided on the inner ring of the support ring, a convex ring is provided on the side of the distribution plate corresponding to the annular groove, and grease is filled between the convex ring and the annular groove.

[0010] As a further description of the above technical solution: the plurality of rotating blades are arranged in an arc-shaped structure, and the plurality of rotating blades are arranged around the center of the distribution disk.

[0011] As a further description of the above technical solution: the surface of the distribution plate is provided with a hollow structure, and the hollow structure is arranged in a honeycomb shape.

[0012] As a further description of the above technical solution: the upper part of the inner ring of the support ring is provided with a bell mouth.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, a boiling chamber, a cyclone separator, a heater and a blower are used to form a drying device for aluminum dihydrogen tripolyphosphate. By starting the blower and several electric heating rods built into the heater, the blower is prompted to heat the cold air through the several electric heating rods and then send it into the boiling chamber, so that the upwelling hot air contacts the wet material in the falling stage. At this time, since the bottom surface of the distribution plate rotating in the support ring is surrounded by several arc-shaped rotating blades, and the heater is provided with a blowing nozzle inclined to the corresponding rotating blades, as the blowing nozzle transports hot air to the boiling chamber, the hot air acts on the several rotating blades to drive the distribution plate to rotate in the support ring until the falling wet material contacts the rotating distribution plate to be fully dispersed, thereby improving the contact effect between the wet material and the hot air, and combining with the cyclone separator to realize solid-liquid separation, thereby improving the drying efficiency of the wet material. Compared with the prior art, the dispersion effect of the wet material in the drying stage is increased while meeting the requirement of unobstructed discharging, thereby improving the drying efficiency of aluminum dihydrogen tripolyphosphate to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a drying device for aluminum dihydrogen tripolyphosphate of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the boiling chamber of the drying device for aluminum dihydrogen tripolyphosphate of the utility model;

[0017] Figure 3 This is a bottom view of the distribution plate of the drying device for aluminum dihydrogen tripolyphosphate of the utility model.

[0018] Legend:

[0019] 1. Boiling chamber; 2. Cyclone separator; 3. Feed pipe; 4. Heater; 5. Blower; 6. Discharge pipe; 7. Dropping pipe; 8. Bend pipe; 9. Exhaust pipe; 10. Base; 11. Electric heating rod; 12. Blowing nozzle; 13. Support ring; 14. Distribution plate; 15. Convex ring; 16. Rotating blades. DETAILED DESCRIPTION

[0020] 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.

[0021] According to an embodiment of the utility model, a drying device for aluminum dihydrogen tripolyphosphate is provided.

[0022] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-3 As shown, the drying device for aluminum dihydrogen tripolyphosphate according to the embodiment of the utility model comprises a boiling chamber 1 and a cyclone separator 2, a base 10 is provided at the bottom of the boiling chamber 1, and a blower 5 is fixed at the edge of the top surface of the base 10, a heater 4 is fixedly connected to the left side of the lower part of the boiling chamber 1, and the left end of the heater 4 is connected to the air outlet of the blower 5, and the right end of the heater 4 is provided with a blowing nozzle 12 extending to the inside of the boiling chamber 1, and a plurality of electric heating rods 11 are evenly arranged inside the heater 4, a feed pipe 3 is provided on the upper surface of the boiling chamber 1, and a bend pipe 8 is connected to the top surface of the boiling chamber 1, one end of the bend pipe 8 is connected to the cyclone separator 2 through a flange, and an exhaust pipe 9 is provided on the top of the cyclone separator 2, and the bottom of the cyclone separator 2 is connected to a drop pipe 7, and the right side of the lower part of the boiling chamber 1 is connected to the There is a discharge pipe 6, and the discharge pipe 6 is connected with the drop pipe 7. A support ring 13 is welded inside the boiling chamber 1, and a distribution plate 14 is rotatably arranged inside the support ring 13. The bottom surface of the distribution plate 14 is surrounded by a plurality of rotating blades 16. The air outlet of the blowing nozzle 12 is inclined to face the rotating blades 16 of the distribution plate 14. The working principle of the cyclone separator 2 is to rely on the rotational movement caused by the tangential introduction of the airflow to make the solid particles or droplets with large inertial centrifugal force be thrown to the outer wall surface to separate. The control mode of the blower 5 and the electric heating rod 11 of the utility model is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply belong to the common knowledge in the field, and the utility model is mainly used to protect the mechanical device, so the utility model will not explain the control mode and wiring arrangement in detail.

[0023] In one embodiment, one end of the feed pipe 3 extends to the inside of the boiling chamber 1, and the top surface of the other end of the feed pipe 3 is connected to a trumpet cover. The trumpet cover is provided to facilitate the addition of wet materials. In order to increase the effect of adding wet materials, an auger driven by a motor can be provided inside the feed pipe 3. The specific technology is well-known in the art and will not be elaborated on.

[0024] In one embodiment, an annular groove is provided on the inner ring of the support ring 13, a convex ring 15 is provided on the side of the distribution plate 14 corresponding to the annular groove, and grease is filled between the convex ring 15 and the annular groove. The convex ring 15 and the annular groove facilitate the rotation of the distribution plate 14.

[0025] In one embodiment, a plurality of rotating blades 16 are arranged in an arc-shaped structure, and a plurality of rotating blades 16 are arranged around the center of the distribution disk 14. Through the arrangement of a plurality of rotating blades 16, under the action of the blowing nozzle 12, the purpose of unpowered rotation of the distribution disk 14 is achieved. In order to facilitate the rotation of the distribution disk 14, a plurality of blowing nozzles 12 can be arranged, and the blowing nozzles 12 can be arranged inclined relative to the distribution disk 14.

[0026] In one embodiment, a hollow structure is provided on the surface of the distribution plate 14, and the hollow structure is provided in a honeycomb shape. The hollow structure is provided to facilitate the passage of the dried aluminum dihydrogen tripolyphosphate, thereby facilitating the discharge of the material.

[0027] In one embodiment, the upper portion of the inner ring of the support ring 13 is provided with a bell mouth, and the bell mouth is provided to minimize the surface area of ​​the end face of the top of the support ring 13 to avoid accumulation and residue of materials.

[0028] Working principle:

[0029] When in use, the wet material is first fed into the boiling chamber 1 through the feed pipe 3. When drying, the blower 5 and the several electric heating rods 11 built into the heater 4 are started to work, so that the blower 5 heats the cold air through the several electric heating rods 11 and feeds it into the boiling chamber 1, so that the rising hot air contacts the wet material in the falling stage. At this time, since the bottom surface of the distribution plate 14 rotatingly arranged in the support ring 13 is surrounded by several arc-shaped rotating blades 16, and the heater 4 is provided with a blowing nozzle 12 inclinedly arranged corresponding to the rotating blades 16, as the blowing nozzle 12 delivers hot air to the boiling chamber 1, the hot air The air acts on a plurality of rotating blades 16 to drive the distribution plate 14 to rotate in the support ring 13 until the falling wet material contacts the rotating distribution plate 14 to be fully dispersed, thereby improving the contact effect between the wet material and the hot air. In this process, the cyclone separator 2 works in coordination, and the hot air rising from the bend 8 and the wet material particles enter the cyclone separator 2 to achieve solid-liquid separation. The dried aluminum dihydrogen tripolyphosphate enters the discharge pipe 6 along the drop pipe 7 and follows the discharge pipe 6 to achieve the purpose of discharging aluminum dihydrogen tripolyphosphate. The waste gas generated by drying is discharged through the exhaust pipe 9, thereby improving the drying efficiency of the wet material.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 drying device for aluminum dihydrogen tripolyphosphate, comprising a boiling chamber (1) and a cyclone separator (2), characterized in that: A base (10) is provided at the bottom of the boiling chamber (1), and a blower (5) is fixed at the edge of the top surface of the base (10). A heater (4) is fixedly connected to the left side of the lower part of the boiling chamber (1), and the left end of the heater (4) is connected to the air outlet of the blower (5), and the right end of the heater (4) is provided with a blowing nozzle (12) extending into the boiling chamber (1). A plurality of electric heating rods (11) are evenly arranged inside the heater (4). A feed pipe (3) is provided on the upper surface of the boiling chamber (1), and a bent pipe (8) is connected to the top surface of the boiling chamber (1), and one end of the bent pipe (8) is connected by a method. The flange is connected to a cyclone separator (2), and an exhaust pipe (9) is arranged on the top of the cyclone separator (2), and a discharge pipe (7) is connected to the bottom of the cyclone separator (2). A discharge pipe (6) is connected to the right side of the lower part of the boiling chamber (1), and the discharge pipe (6) is connected to the discharge pipe (7). A support ring (13) is welded inside the boiling chamber (1), and a distribution plate (14) is rotatably arranged inside the support ring (13). A plurality of rotating blades (16) are arranged around the bottom surface of the distribution plate (14), and the air outlet of the blowing nozzle (12) is inclined to face the rotating blades (16) of the distribution plate (14).

2. The drying device for aluminum dihydrogen tripolyphosphate according to claim 1, characterized in that: One end of the feed pipe (3) extends into the interior of the boiling chamber (1), and the top surface of the other end of the feed pipe (3) is connected to a horn cover.

3. The drying device for aluminum dihydrogen tripolyphosphate according to claim 1, characterized in that: The inner ring of the support ring (13) is provided with an annular groove, and the side surface of the distribution plate (14) is provided with a convex ring (15) corresponding to the annular groove, and grease is filled between the convex ring (15) and the annular groove.

4. The drying device for aluminum dihydrogen tripolyphosphate according to claim 1, characterized in that: The plurality of rotating blades (16) are all arranged in an arc-shaped structure, and the plurality of rotating blades (16) are arranged around the center of the distribution plate (14).

5. The drying device for aluminum dihydrogen tripolyphosphate according to claim 1, characterized in that: The surface of the distribution plate (14) is provided with a hollow structure, and the hollow structure is arranged in a honeycomb shape.

6. The drying device for aluminum dihydrogen tripolyphosphate according to claim 1, characterized in that: The upper part of the inner ring of the support ring (13) is provided with a bell mouth.

Images