A dry state coating mechanism and an ammonium perchlorate coating device provided with the mechanism

Abstract

This utility model discloses a dry coating mechanism and an ammonium perchlorate coating device having the mechanism, relating to the field of ammonium perchlorate coating, including a coating tank; a coating mechanism disposed inside the coating tank; wherein, the coating tank has a first chamber and a second chamber respectively opened along the height direction, and the first chamber and the second chamber are interconnected; a dispensing box is fixed at the top of the first chamber, and a dispensing hole is opened at the bottom of the dispensing box; the coating material enters the dispensing box through the feed hopper, and then, under the action of the scraper, it enters the first chamber evenly from the dispensing hole and comes into contact with the ammonium perchlorate; and with the rotation of the stirring plate, the coating process is completed. The scraper can both accelerate the even distribution of the coating material from the dispensing hole and prevent the coating material from clogging inside the dispensing hole.

Description

Technical Field

[0001] This utility model relates to the field of ammonium perchlorate coating, and in particular to a dry coating mechanism and an ammonium perchlorate coating device having the mechanism. Background Technology

[0002] Ammonium perchlorate, as a strong oxidizing agent with excellent performance, is widely used in explosives manufacturing, chemical synthesis, aerospace, and military industries. However, ammonium perchlorate is prone to hygroscopic agglomeration during production and storage, which not only affects product quality but also causes many inconveniences in screening, packaging, transportation, and use.

[0003] For example, a patent entitled "Anti-caking Coating Device for Ammonium Perchlorate Crystals" (patent application number: CN202020511338.4) discloses an anti-caking coating device for ammonium perchlorate crystals. Through the cooperation between the spiral stirring device and the upper scraper, the ammonium perchlorate crystals and the anti-caking agent can be quickly stirred and mixed, which greatly improves the coating effect. However, since the anti-caking agent (sodium dodecyl sulfate) is in powder form and only has dispersion holes, the powder falls freely, which can easily cause the dispersion holes to become blocked, resulting in uneven distribution of the powder.

[0004] Therefore, it is necessary to propose a dry coating mechanism and an ammonium perchlorate coating device with such mechanism to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a dry coating mechanism to solve the problem that, because the anti-caking agent (sodium dodecyl sulfate) is in powder form and only has dispersion holes, the powder can easily become clogged as it falls freely, resulting in uneven powder distribution.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dry coating mechanism, comprising:

[0007] Coated cans;

[0008] A coating mechanism is disposed inside the coating tank;

[0009] The coating tank has a first chamber and a second chamber respectively opened along the height direction, and the first chamber and the second chamber are interconnected.

[0010] A material distribution box is fixed at the top of the first chamber, and a material distribution hole is opened at the bottom of the material distribution box;

[0011] The coating mechanism includes a rotating shaft, the top end of which extends into the material distribution box, and a scraper is connected to the outer side of the extended end.

[0012] The bottom end of the rotating shaft passes through the first chamber and the second chamber, and two stirring plates are fixed on the outside of the passing end.

[0013] Preferably, the top of the coating tank is provided with a feeding hopper, and the bottom of the feeding hopper is connected to the inside of the dispensing box.

[0014] Preferably, an adsorption port is fixed at the bottom outer side of the coating tank, one end of the adsorption port extends into the second chamber, and a filter screen is fixed inside the extended end.

[0015] Preferably, a feed inlet is fixed to the top of the outer side of the coating tank, and one end of the feed inlet is connected to the interior of the first chamber.

[0016] Preferably, the two stirring plates are respectively disposed in the first chamber and the second chamber, and one side of the two stirring plates is respectively attached to the inner wall of the first chamber and the second chamber.

[0017] Preferably, a motor is fixed to the bottom of the coating tank, and the drive shaft of the motor is connected to the bottom of the rotating shaft.

[0018] Preferably, a solenoid valve is provided at the connection between the first chamber and the second chamber.

[0019] This utility model also discloses an ammonium perchlorate coating device with a dry coating mechanism, including a vacuum chamber, wherein the dry coating mechanism is disposed in the vacuum chamber.

[0020] The technical effects and advantages of this utility model are as follows:

[0021] 1. The coating material enters the distribution box through the feed hopper, and then, under the action of the scraper, it enters the first chamber evenly from the distribution hole and comes into contact with ammonium perchlorate. As the stirring plate rotates, the coating process is completed. The scraper can accelerate the even distribution of the coating material from the distribution hole, and at the same time, it can prevent the coating material from clogging inside the distribution hole.

[0022] 2. A solenoid valve is installed at the connection between the first chamber and the second chamber. By controlling the opening and closing of the solenoid valve, the flow of ammonium perchlorate between the first chamber and the second chamber can be precisely controlled, realizing automated control of coating operations at different stages, and improving production efficiency and the stability of coating quality.

[0023] 3. After initial mixing and coating, the material can enter the second chamber when the solenoid valve is opened, which improves the integrity of the coating and extends the coating time. At the same time, ammonium perchlorate and coating material can be introduced into the first chamber again for the next coating task, thereby improving production efficiency. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the dry coating mechanism and the ammonium perchlorate coating device equipped with the present invention from one perspective.

[0025] Figure 2 This is a schematic diagram of the dry coating mechanism and the ammonium perchlorate coating device equipped with the present invention from another perspective.

[0026] Figure 3 This is a schematic diagram of the internal structure of the coating tank of this utility model.

[0027] In the diagram: 1. Coating tank; 2. Feed hopper; 3. Adsorption port; 4. Motor; 5. Feeding port; 6. First chamber; 7. Second chamber; 8. Rotating shaft; 9. Solenoid valve; 10. Filter screen; 11. Distributor box; 12. Scraper; 13. Stirring plate. Detailed Implementation

[0028] This utility model provides, for example Figures 1-3 A dry coating mechanism is shown, comprising:

[0029] Coated can 1;

[0030] A coating mechanism is installed inside the coating tank 1;

[0031] The coating tank 1 has a first chamber 6 and a second chamber 7 respectively opened along the height direction, and the first chamber 6 and the second chamber 7 are interconnected.

[0032] A material distribution box 11 is fixed at the top of the first chamber 6, and a material distribution hole is opened at the bottom of the material distribution box 11.

[0033] A feed inlet 5 is fixed to the top of the outer side of the coating tank 1. One end of the feed inlet 5 is connected to the inside of the first chamber 6, and ammonium perchlorate can enter the inside of the first chamber 6 through the feed inlet 5.

[0034] The coating mechanism includes a rotating shaft 8, the top end of which extends into the material distribution box 11, and a scraper 12 is connected to the outer side of the extended end;

[0035] The top of the coating tank 1 is equipped with a feed hopper 2, and the bottom of the feed hopper 2 is connected to the inside of the distribution box 11. The coating material can enter the inside of the distribution box 11 from the feed hopper 2. The coating material is sodium dodecyl sulfate, which is in powder form.

[0036] The bottom end of the rotating shaft 8 passes through the first chamber 6 and the second chamber 7, and two stirring plates 13 are fixed on the outer side of the passing end.

[0037] The coating material enters the distribution box 11 through the feed hopper 2, and then enters the first chamber 6 evenly from the distribution hole under the action of the scraper 12 to contact the ammonium perchlorate. As the stirring plate 13 rotates, the coating process is completed. The scraper 12 can both speed up the even distribution of the coating material from the distribution hole and prevent the coating material from clogging inside the distribution hole.

[0038] A solenoid valve 9 is installed at the connection between the first chamber 6 and the second chamber 7. By controlling the opening and closing of the solenoid valve 9, the flow of ammonium perchlorate between the first chamber 6 and the second chamber 7 can be precisely controlled, realizing automated control of coating operations at different stages and improving production efficiency and the stability of coating quality.

[0039] After initial mixing and coating, the material can enter the second chamber 7 as the solenoid valve 9 is opened, improving the coating integrity and extending the coating time. At the same time, ammonium perchlorate and coating material can be introduced into the first chamber 6 again for the next coating task.

[0040] An adsorption port 3 is fixed to the bottom of the outer side of the coating tank 1. One end of the adsorption port 3 extends into the second chamber 7, and a filter screen 10 is fixed inside the extended end. The adsorption port 3 can be connected to an adsorption mechanism, such as a pump or a vacuum cleaner, which can suck out the coated material and reduce the accumulation of material.

[0041] Two stirring plates 13 are respectively disposed in the first chamber 6 and the second chamber 7, and one side of the two stirring plates 13 is respectively attached to the inner wall of the first chamber 6 and the second chamber 7. A motor 4 is fixed at the bottom of the coating tank 1, and the drive shaft of the motor 4 is connected to the bottom of the rotating shaft 8.

[0042] The motor 4 can drive the rotating shaft 8 to rotate, thereby simultaneously stirring and scraping out the materials inside the first chamber 6, the second chamber 7, and the material distribution box 11.

[0043] This utility model also discloses an ammonium perchlorate coating device with a dry coating mechanism, including a vacuum chamber. The entire device is set in the vacuum chamber to keep the material in a vacuum state during input and output.

Claims

1. A dry coating mechanism, characterized in that: include: Coated can (1); A coating mechanism is disposed inside the coating tank (1); The coating tank (1) has a first chamber (6) and a second chamber (7) respectively opened along the height direction inside, and the first chamber (6) and the second chamber (7) are interconnected; The top of the first chamber (6) is fixed with a material distribution box (11), and the bottom of the material distribution box (11) is provided with a material distribution hole; The coating mechanism includes a rotating shaft (8), the top end of which extends into the material distribution box (11), and a scraper (12) is connected to the outside of the extended end; The bottom end of the rotating shaft (8) passes through the first chamber (6) and the second chamber (7), and two stirring plates (13) are fixed on the outer side of the passing end.

2. The dry coating mechanism according to claim 1, characterized in that: The top of the coating tank (1) is provided with a feeding hopper (2), and the bottom of the feeding hopper (2) is connected to the inside of the dispensing box (11).

3. The dry coating mechanism according to claim 1, characterized in that: An adsorption port (3) is fixed at the bottom of the outer side of the coating tank (1). One end of the adsorption port (3) extends into the interior of the second chamber (7), and a filter screen (10) is fixed inside the extended end.

4. The dry coating mechanism according to claim 1, characterized in that: The top of the outer side of the coating tank (1) is fixed with a feeding port (5), and one end of the feeding port (5) is connected to the inside of the first chamber (6).

5. A dry coating mechanism according to claim 1, characterized in that: Two stirring plates (13) are respectively disposed in the first chamber (6) and the second chamber (7), and one side of each stirring plate (13) is attached to the inner wall of the first chamber (6) and the second chamber (7).

6. The dry coating mechanism according to claim 1, characterized in that: The bottom of the coating tank (1) is fixed with a motor (4), and the drive shaft of the motor (4) is connected to the bottom of the rotating shaft (8).

7. The dry coating mechanism according to claim 1, characterized in that: A solenoid valve (9) is provided at the connection between the first chamber (6) and the second chamber (7).

8. An ammonium perchlorate coating device with a dry coating mechanism, characterized in that: The dry coating mechanism as described in any one of claims 1-7 further includes a vacuum chamber, wherein the dry coating mechanism is disposed within the vacuum chamber.

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