Neutralization reaction device for preparing calcium polyphosphate

By designing a neutralization reaction device with an inner cylinder, stirring, and heat dissipation components, the problems of heat dissipation and insufficient mixing were solved, achieving heat dissipation and uniform mixing of raw materials during the preparation of calcium ammonium polyphosphate, thus improving reaction efficiency and safety.

CN224293269UActive Publication Date: 2026-05-29HUBEI DEYI JUPHOSPHOR TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI DEYI JUPHOSPHOR TECHNOLOGY CO LTD
Filing Date
2025-07-08
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing neutralization reaction equipment has problems in the preparation of calcium ammonium polyphosphate, such as untimely heat dissipation leading to excessively high temperatures that decompose ammonium salts and waste of raw materials. At the same time, insufficient mixing affects the reaction rate and efficiency.

Method used

A neutralization reaction device was designed, comprising a box, an inner cylinder, a stirring assembly, a heat dissipation assembly, and a purification assembly. It utilizes a fan for heat dissipation, an activated carbon plate for absorbing ammonia gas, and a motor for stirring the raw materials to ensure heat dissipation and uniform mixing of the raw materials.

Benefits of technology

It effectively dissipates the heat of the neutralization reaction, avoids the decomposition of ammonium salts, reduces air pollution, improves the uniformity of raw material mixing and reaction speed, and enhances the efficiency of the neutralization reaction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of ammonium polyphosphate calcium preparation is used neutralization reaction device, including box and supporting leg, discharge assembly is installed on the box, the discharge assembly includes outlet pipe and valve, separation assembly is installed on the box, the separation assembly includes inner cylinder and support plate, purification assembly is installed on the box, the purification assembly includes cover and activated carbon plate, stirring assembly is installed on the box, the stirring assembly includes motor and rotating rod, flow guide mechanism is installed on the inner cylinder, the neutralization reaction device that this ammonium polyphosphate calcium preparation can dissipate the heat generated by neutralization reaction, avoid because temperature is too high and causes ammonium salt decomposition ammonia gas, avoid raw material waste, and it is favorable to guarantee the thoroughness of neutralization reaction, raw material generates up and down and horizontal flow in the inside of inner cylinder, so that raw material is rapidly and fully mixed evenly, improve the speed of ammonium polyphosphate calcium neutralization reaction, suitable for the neutralization reaction of ammonium polyphosphate calcium preparation.
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Description

Technical Field

[0001] This utility model relates to the field of neutralization reaction equipment technology, specifically a neutralization reaction device for the preparation of calcium ammonium polyphosphate. Background Technology

[0002] In the neutralization reaction of ammonium calcium polyphosphate, neutralization reaction equipment is often required. Utility model patent application CN201220372608.3 discloses a rotating energy-saving neutralization reactor for ammonium phosphate production. This reactor uses a phosphoric acid inlet pipe and ammonia inlet pipe with opposite openings, extending into a mixing pipe for feeding and full reaction. The generated slurry escapes through holes in the mixing pipe and is finally discharged through a slurry overflow pipe. The raw materials undergo a rotating neutralization reaction within the mixing pipe, effectively utilizing the feeding pressure and chemical reaction heat. It has advantages such as simple structure, short process, no need for power equipment, cost savings, full reaction, and high capacity. According to its disclosed technical solution, existing neutralization reaction equipment, on the one hand, is prone to problems during neutralization. The heat generated by the reaction cannot be dissipated in time, leading to excessively high temperatures and the decomposition of ammonium salts into ammonia gas, resulting in raw material waste and hindering the thoroughness of the neutralization reaction. On the other hand, it cannot quickly and fully mix the raw materials, thus hindering the improvement of the reaction rate.

[0003] Therefore, how to design a neutralization reaction device for the preparation of calcium ammonium polyphosphate has become a problem we need to solve. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a neutralization reaction apparatus for the preparation of calcium ammonium polyphosphate, thereby solving the problems mentioned in the background section. This invention is reasonably designed, convenient to use, and suitable for use in the neutralization reaction during the preparation of calcium ammonium polyphosphate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a neutralization reaction device for the preparation of calcium ammonium polyphosphate, comprising a box and supporting legs. A discharge assembly is installed on the box, comprising a discharge pipe and a valve. A partition assembly is installed on the box, comprising an inner cylinder and a support plate. A purification assembly is installed on the box, comprising a cover and an activated carbon plate. A stirring assembly is installed on the box, comprising a motor and a rotating rod. A flow guiding mechanism is installed on the inner cylinder, comprising an inclined plate. A heat dissipation assembly is installed on the box, comprising a fan and a duct.

[0006] Furthermore, the support legs are welded to the bottom of the box, the inner cylinder is installed on the inside of the box, and the two sides of the support plate are welded to the outer side of the inner cylinder and the inner wall of the box, respectively. The support plates are evenly distributed around the inner cylinder.

[0007] Furthermore, an inlet is welded to the top of the inner cylinder, the top of the inlet passes through the box body and extends to the top of the box body, the cover is fitted on the outer side of the top of the inlet, and the activated carbon plate is installed on the inner wall of the top of the cover by bolts.

[0008] Furthermore, one end of the outlet pipe is welded to the bottom of one side of the inner cylinder, and the other end of the outlet pipe passes through the inner wall of the box and extends to the outside of the box. The valve is installed on the outlet pipe.

[0009] Furthermore, the motor is bolted to the top of the housing, the rotating rod is installed inside the inner cylinder, and the top of the rotating rod passes through the top of the inner cylinder and the housing in sequence via a bearing and is keyed to the output shaft of the motor.

[0010] Furthermore, the inclined plates are welded to the inner wall of the inner cylinder, and the inclined plates are symmetrically distributed on both sides of the inner cylinder and evenly distributed on the inner cylinder.

[0011] Furthermore, a filter screen is bolted to the bottom of the housing, the air duct is welded to the top of the housing, and the fan is bolted to the inside of the air duct.

[0012] Furthermore, an external switch assembly is connected to the housing, and the switch assembly is connected to the motor and the fan via wires.

[0013] Beneficial effects: 1. When using this neutralization reaction device for preparing ammonium calcium polyphosphate, the heat generated by the neutralization reaction is conducted to the inner cylinder. The fan generates suction on the inside of the chamber through the air duct, which causes the air to enter the bottom of the inner chamber after being filtered by the filter screen. The air then flows upward on the outer side of the bottom of the inner cylinder. The airflow flows in the gap between the inner cylinder and the chamber, effectively carrying away the heat on the inner cylinder and blowing it upward through the air duct. This effectively dissipates the heat generated by the neutralization reaction, preventing the ammonium salt from decomposing into ammonia gas due to excessive temperature, avoiding waste of raw materials, and ensuring the thoroughness of the neutralization reaction.

[0014] 2. In use, the neutralization reaction apparatus for preparing ammonium polyphosphate involves adding the raw materials required for the preparation of ammonium polyphosphate into the inner cylinder through the inlet, then sealing the inlet. Activated carbon plates absorb the volatilized ammonia gas, reducing air pollution. The motor is then turned on, driving the rotating rod to stir the raw materials, causing them to rotate and flow inside the inner cylinder. The flowing raw materials are first pushed upwards by one inclined plate and then downwards by the other inclined plate, resulting in vertical and horizontal flow within the inner cylinder. This ensures rapid and thorough mixing, increasing the speed and efficiency of the ammonium polyphosphate neutralization reaction.

[0015] 3. The neutralization reaction apparatus for the preparation of ammonium calcium polyphosphate is reasonably designed, highly efficient and convenient to use, and suitable for use in the neutralization reaction during the preparation of ammonium calcium polyphosphate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the neutralization reaction apparatus for preparing calcium ammonium polyphosphate according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a neutralization reaction apparatus for the preparation of calcium ammonium polyphosphate according to this utility model;

[0018] Figure 3 This is a schematic diagram of the inner cylinder of a neutralization reaction apparatus for preparing calcium ammonium polyphosphate according to this utility model;

[0019] In the diagram: 1. Box body; 2. Support leg; 3. Outlet pipe; 4. Valve; 5. Inlet; 6. Cover; 7. Activated carbon plate; 8. Motor; 9. Inner cylinder; 10. Support plate; 11. Rotating rod; 12. Filter screen; 13. Air duct; 14. Fan; 15. Inclined plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 3This utility model provides a technical solution: a neutralization reaction device for the preparation of calcium ammonium polyphosphate, comprising a box body 1 and support legs 2. A discharge assembly is installed on the box body 1, comprising a discharge pipe 3 and a valve 4. A partition assembly is installed on the box body 1, comprising an inner cylinder 9 and support plates 10. A purification assembly is installed on the box body 1, comprising a cover 6 and an activated carbon plate 7. A stirring assembly is installed on the box body 1, comprising a motor 8 and a rotating rod 11. A flow guiding mechanism is installed on the inner cylinder 9, comprising an inclined plate 15. A heat dissipation assembly is installed on the box body 1, comprising a fan duct 13 and a fan 14. The support legs 2 are welded to the bottom of the box body 1. The inner cylinder 9 is installed on the inner side of the box body 1. The two sides of the support plates 10 are respectively welded to the outer side of the inner cylinder 9 and the inner wall of the box body 1. The support plates 10 are evenly distributed on... Around the inner cylinder 9, a filter screen 12 is bolted to the bottom of the box body 1. The air duct 13 is welded to the top of the box body 1. The fan 14 is bolted to the inside of the air duct 13. An external switch assembly is connected to the box body 1. The switch assembly is connected to the motor 8 and the fan 14 via wires. During use, the heat generated by the neutralization reaction is conducted to the inner cylinder 9. The fan 14 generates suction on the inside of the box body 1 through the air duct 13, causing air to enter the bottom of the inner side of the box body 1 after being filtered by the filter screen 12. The air then flows upward on the outer side of the bottom of the inner cylinder 9. The airflow flows in the gap between the inner cylinder 9 and the box body 1, effectively carrying away the heat on the inner cylinder 9. The heat is then blown upward by the fan 14 through the air duct 13. This effectively dissipates the heat generated by the neutralization reaction, preventing the ammonium salt from decomposing into ammonia due to excessive temperature, avoiding waste of raw materials, and ensuring the thoroughness of the neutralization reaction.

[0022] In this embodiment, an inlet 5 is welded to the top of the inner cylinder 9. The top of the inlet 5 passes through the housing 1 and extends to the top of the housing 1. The cover 6 is fitted onto the outer side of the top of the inlet 5. The activated carbon plate 7 is bolted to the inner wall of the top of the cover 6. One end of the outlet pipe 3 is welded to the bottom of one side of the inner cylinder 9, and the other end of the outlet pipe 3 passes through the inner wall of the housing 1 and extends to the outer side of the housing 1. The valve 4 is installed on the outlet pipe 3. The motor 8 is bolted to the top of the housing 1. The rotating rod 11 is installed inside the inner cylinder 9. The top end of the rotating rod 11 passes through the top of the inner cylinder 9 and the housing 1 in sequence via a bearing and is keyed to the output shaft of the motor 8. The inclined plate 15 is welded to the inner wall of the inner cylinder 9. Inclined plates 15 are symmetrically distributed on both sides of the inner cylinder 9. The inclined plates 15 are evenly distributed on the inner cylinder 9. In use, the raw materials required for the preparation of calcium ammonium polyphosphate are added to the inner side of the inner cylinder 9 through the inlet 5. Then, the cap 6 is placed on the inlet 5. The activated carbon plate 7 absorbs the volatilized ammonia gas to reduce air pollution. Then, the motor 8 is turned on, and the motor 8 drives the rotating rod 11 to stir the raw materials, so that the raw materials rotate and flow inside the inner cylinder 9. The flowing raw materials are first pushed upward by the inclined plate 15 on one side, and then pushed downward by the inclined plate 15 on the other side, so that the raw materials generate vertical and horizontal flow inside the inner cylinder 9, thereby making the raw materials quickly and thoroughly mixed evenly, improving the speed of the calcium ammonium polyphosphate neutralization reaction, and thus improving the efficiency of the neutralization reaction.

[0023] This neutralization reaction apparatus for preparing calcium ammonium polyphosphate is powered by an external power source. During operation, the raw materials required for calcium ammonium polyphosphate preparation are added to the inner cylinder 9 through inlet 5. The cap 6 is then placed on inlet 5. Activated carbon plates 7 absorb the volatilized ammonia gas, reducing air pollution. The motor 8 is then turned on, driving the rotating rod 11 to stir the raw materials. This causes the raw materials to rotate and flow inside the inner cylinder 9. The flowing raw materials are first pushed upwards by one inclined plate 15 and then downwards by the other inclined plate 15, resulting in vertical and horizontal flow within the inner cylinder 9. This ensures rapid and thorough mixing and improves the efficiency of the process. The neutralization reaction of ammonium calcium polyphosphate is accelerated, thereby improving the efficiency of the neutralization reaction. The heat generated by the neutralization reaction is conducted to the inner cylinder 9. The fan 14 generates suction on the inside of the box 1 through the air duct 13, which causes the air to enter the bottom of the inner side of the box 1 after being filtered by the filter screen 12. The air flows upward on the outer side of the bottom of the inner cylinder 9. The airflow flows in the gap between the inner cylinder 9 and the box 1, which effectively carries away the heat on the inner cylinder 9 and blows it upward by the fan 14 through the air duct 13. This can effectively dissipate the heat generated by the neutralization reaction, avoid the decomposition of ammonium salt into ammonia gas due to excessive temperature, avoid waste of raw materials, and help ensure the thoroughness of the neutralization reaction.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A neutralization reaction apparatus for preparing calcium ammonium polyphosphate, comprising a housing (1) and support legs (2), wherein a discharge assembly is installed on the housing (1), the discharge assembly comprising a discharge pipe (3) and a valve (4), characterized in that: The box (1) is equipped with a partition assembly, which includes an inner cylinder (9) and a support plate (10). The box (1) is equipped with a purification assembly, which includes a cover (6) and an activated carbon plate (7). The box (1) is equipped with a stirring assembly, which includes a motor (8) and a rotating rod (11). The inner cylinder (9) is equipped with a flow guiding mechanism, which includes an inclined plate (15). The box (1) is equipped with a heat dissipation assembly, which includes a duct (13) and a fan (14).

2. The neutralization reaction apparatus for preparing calcium ammonium polyphosphate according to claim 1, characterized in that: The support leg (2) is welded to the bottom of the box (1), the inner cylinder (9) is installed on the inner side of the box (1), the two sides of the support plate (10) are respectively welded to the outer side of the inner cylinder (9) and the inner wall of the box (1), and the support plate (10) is evenly distributed around the inner cylinder (9).

3. The neutralization reaction apparatus for preparing calcium ammonium polyphosphate according to claim 2, characterized in that: The top of the inner cylinder (9) is welded with an inlet (5), the top of the inlet (5) passes through the box body (1) and extends to the top of the box body (1), the cover (6) is fitted on the outer side of the top of the inlet (5), and the activated carbon plate (7) is installed on the inner wall of the top of the cover (6) by bolts.

4. The neutralization reaction apparatus for preparing calcium ammonium polyphosphate according to claim 1, characterized in that: One end of the outlet pipe (3) is welded to the bottom of one side of the inner cylinder (9), and the other end of the outlet pipe (3) passes through the inner wall of the box (1) and extends to the outside of the box (1). The valve (4) is installed on the outlet pipe (3).

5. The neutralization reaction apparatus for preparing calcium ammonium polyphosphate according to claim 4, characterized in that: The motor (8) is bolted to the top of the housing (1), and the rotating rod (11) is installed inside the inner cylinder (9). The top end of the rotating rod (11) passes through the top of the inner cylinder (9) and the housing (1) in sequence via a bearing and is keyed to the output shaft of the motor (8).

6. The neutralization reaction apparatus for preparing calcium ammonium polyphosphate according to claim 5, characterized in that: The inclined plate (15) is welded to the inner wall of the inner cylinder (9). The inclined plate (15) is symmetrically distributed on both sides of the inner cylinder (9). The inclined plate (15) is evenly distributed on the inner cylinder (9).

7. The neutralization reaction apparatus for preparing calcium ammonium polyphosphate according to claim 6, characterized in that: A filter screen (12) is bolted to the bottom of the housing (1), the air duct (13) is welded to the top of the housing (1), and the fan (14) is bolted to the inside of the air duct (13).

8. The neutralization reaction apparatus for preparing calcium ammonium polyphosphate according to claim 7, characterized in that: The housing (1) is connected to an external switch assembly, which is connected to the motor (8) and the fan (14) via wires.