Expansion crystallization equipment for expanded ammonium nitrate explosive

Abstract

The utility model discloses expanded ammonium nitrate explosive expansion crystallization equipment, and relates to the technical field of expansion crystallization equipment, the expanded ammonium nitrate explosive expansion crystallization equipment comprises a fixing frame, a fixing plate is fixedly arranged in the fixing frame, a heating box is fixedly arranged in the fixing plate, a motor is arranged at the bottom end of the heating box, a rotating shaft is fixedly arranged at the output end of the motor, and the rotating shaft is connected with the heating box. A rotating plate is fixedly arranged at the top end of the rotating shaft, a stirring rod is fixedly arranged at the bottom end of the rotating plate, a movable rod is slidably arranged in the stirring rod, an adjusting plate is hinged to the bottom end of the movable rod, a movable ring is fixedly arranged at the top end of the movable rod, and the movable ring is slidably arranged on the outer surface of the stirring rod; ammonium nitrate raw materials and additives are conveyed to the vacuum puffing crystallization chamber through the feeding pipe, meanwhile, the adjusting plate can be attached to the top face of the inclined plate, the ammonium nitrate raw materials on the inclined plate are scraped off, the situation that the raw materials are left in the heating box after discharging is avoided, and waste of the raw materials is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of expanded crystallization equipment, in particular to expanded ammonium nitrate explosive expanded crystallization equipment. Background Art

[0002] Expanded ammonium nitrate explosives are a type of powdered mixed explosive composed of expanded (microporous and flaky) ammonium nitrate as the primary oxidant, along with an appropriate amount of combustible agent and other functional additives. Their microporous structure creates a sensitizing effect that allows for hot-spot detonation, eliminating the need for sensitizers such as elemental explosives, highly sensitive salts, or metal powders required in conventional industrial explosives. This reduces costs, pollution, and hazards during production and use.

[0003] Application number: CN201720030518.9, provides a high-efficiency expanded ammonium nitrate explosive expanded crystallization equipment, including a support, a side fixed arm, a mixing device, an ammonium nitrate metering feeder, an additive feeder, a feeding port, a feeding control valve, a vacuum expanded crystallization chamber, an expanded discharge control valve, a storage tank mounting frame, a storage tank, a discharge port, a discharge control valve and a display controller. The utility model is conducive to the initial heating and uniform stirring of the ammonium nitrate raw material and the additive in the initial state through the setting of the mixing device, thereby facilitating the improvement of the expanded effect and efficiency; the feeding control valve, the expanded discharge control valve and the discharge control valve adopt the design of electromagnetic valves, which is conducive to the semi-automatic expansion process of the ammonium nitrate, simple operation and high production efficiency; the setting of the sensor and the display controller is conducive to the accurate detection of the state of the raw materials in the mixing device, and then enter the vacuum expanded crystallization chamber for expansion in the best state and facilitate observation and control.

[0004] Although the above patent can preliminarily heat and stir the ammonium nitrate raw materials and additives to improve production efficiency, the ammonium nitrate raw materials and additives will stick to the bottom and inner wall of the heating box during the heating and stirring process, making it inconvenient to discharge the mixed ammonium nitrate raw materials and additives. As a result, a part of the raw materials will still remain on the inner wall of the heating box after discharging, resulting in waste of raw materials. In response to the above problems, the inventors proposed an expanded ammonium nitrate explosive expansion crystallization device to solve the above problems. Utility Model Content

[0005] In order to solve the problem that ammonium nitrate raw materials and additives stick to the bottom and inner wall of the heating box during heating and stirring, making it inconvenient to discharge the mixed ammonium nitrate raw materials and additives, and causing part of the raw materials to remain on the inner wall of the heating box after discharge; the purpose of the utility model is to provide an expansion crystallization device for expanded ammonium nitrate explosives.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: an expanded ammonium nitrate explosive expanded crystallization device, comprising a fixed frame, a fixed plate fixed in the fixed frame, a heating box fixed in the fixed plate, a motor installed at the bottom end of the heating box, a rotating shaft fixed at the output end of the motor, a rotating plate fixed at the top end of the rotating shaft, a stirring rod fixed at the bottom end of the rotating plate, a movable rod slidingly provided in the stirring rod, an adjusting plate hinged at the bottom end of the movable rod, a movable ring fixed at the top end of the movable rod, the movable ring slidingly provided on the outer surface of the stirring rod, a first spring fixedly connected between the inner wall of the stirring rod and the movable ring, firstly, an ammonium nitrate feed pipe is used to add ammonium nitrate raw material, an additive feed pipe is used to add additives, a heating wire is provided in the heating plate, so that the ammonium nitrate raw material and the additive can be preliminarily heated, and then the stirring rod is opened. Start the motor, so that the rotating shaft drives the rotating plate to rotate, and then the stirring rod and the movable rod stir and mix the ammonium nitrate raw material and the additive. After the mixing is completed, the second solenoid valve is opened, so that the ammonium nitrate raw material and the additive can be transported from the feeding pipe to the vacuum expansion crystallization chamber. At the same time, the adjusting plate can be attached to the top surface of the inclined plate and scrape the ammonium nitrate raw material on the inclined plate to avoid the residual raw material in the heating box after discharging. The rotating plate rotates and drives the scraper to scrape the raw material on the inner wall of the heating box. When the bottom end of the scraper contacts the inclined surface of the inclined plate, and with the action of the second spring, the slider is prompted to slide on the outer surface of the slide rod, and then the scraper is scraped off the raw material adhering to the inner wall of the heating box to avoid waste of raw materials and reduce the waste of raw materials. After the vacuum expansion crystallization chamber expands and crystallizes the raw material, the first solenoid valve is opened to enable the finished product to be discharged from the discharge pipe for storage.

[0007] Preferably, a mounting bracket is fixedly provided on the top surface of the rotating plate, a slider is slidably provided inside the mounting bracket, a scraper is fixedly provided on one side of the slider, a sliding rod is fixedly provided inside the mounting bracket, the slider is slidably sleeved on the outer surface of the sliding rod, and a second spring is fixedly connected between the inner wall of the mounting bracket and the slider.

[0008] Preferably, an inclined plate is fixedly provided in the heating box, a through groove is provided in the inclined plate, a groove is provided in the heating box, the through groove and the groove are interconnected, a feeding pipe is fixedly provided in the groove, a second solenoid valve is installed on the outer surface of the feeding pipe, a heating plate is fixedly provided on the outer surface of the heating box, and an ammonium nitrate feeding pipe and an additive feeding pipe are respectively fixedly provided on the top surface of the heating box.

[0009] Preferably, a vacuum puffing crystallization chamber is fixedly provided in the fixed frame, the bottom end of the feeding pipe is fixedly inserted in the vacuum puffing crystallization chamber, a discharge pipe is fixedly provided at the bottom end of the vacuum puffing crystallization chamber, and a first solenoid valve is installed on the outer surface of the discharge pipe.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. In the present invention, the ammonium nitrate raw materials and additives are transported to the vacuum expansion crystallization chamber through the feeding pipe. At the same time, the adjusting plate can be fitted on the top surface of the inclined plate and scrape off the ammonium nitrate raw materials on the inclined plate, thereby avoiding the waste of raw materials in the heating box after discharging.

[0012] 2. In the present invention, when the bottom end of the scraper contacts the inclined surface of the inclined plate, and under the action of the second spring, the slider is prompted to slide on the outer surface of the slide rod, and then the scraper is used to scrape off the raw materials adhering to the inner wall of the heating box, avoiding waste of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a partial cross-sectional structural diagram of the heating box of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0017] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the stirring rod of the present invention.

[0018] In the figure: 1. fixed frame; 11. vacuum expansion crystallization chamber; 12. discharge pipe; 13. first solenoid valve; 2. fixed plate; 21. heating box; 22. heating plate; 23. ammonium nitrate feed pipe; 24. additive feed pipe; 25. feed pipe; 26. second solenoid valve; 27. inclined plate; 271. through slot; 3. motor; 31. rotating shaft; 32. rotating plate; 33. stirring rod; 34. movable rod; 35. adjusting plate; 36. first spring; 37. movable ring; 4. mounting frame; 41. slide rod; 42. second spring; 43. slider; 44. scraper. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example: Figure 1-4 As shown, the utility model provides an expanded ammonium nitrate explosive expanded crystallization device, including a fixed frame 1, a fixed plate 2 is fixedly provided in the fixed frame 1, a heating box 21 is fixedly provided in the fixed plate 2, a motor 3 is installed at the bottom end of the heating box 21, a rotating shaft 31 is fixedly provided at the output end of the motor 3, a rotating plate 32 is fixedly provided at the top end of the rotating shaft 31, a stirring rod 33 is fixedly provided at the bottom end of the rotating plate 32, a movable rod 34 is slidably provided in the stirring rod 33, an adjusting plate 35 is hingedly provided at the bottom end of the movable rod 34, a movable ring 37 is fixedly provided at the top end of the movable rod 34, and the movable ring 37 is slidably provided on the outer surface of the stirring rod 33 On the surface, a first spring 36 is fixedly connected between the inner wall of the stirring rod 33 and the movable ring 37. By turning on the motor 3, the rotating shaft 31 drives the rotating plate 32 to rotate, and then the stirring rod 33 and the movable rod 34 stir and mix the ammonium nitrate raw material and the additive. After the mixing is completed, by opening the second solenoid valve 26, the ammonium nitrate raw material and the additive can be transported from the feeding pipe 25 to the vacuum expansion crystallization chamber 11. At the same time, the adjusting plate 35 can be attached to the top surface of the inclined plate 27 and scrape off the ammonium nitrate raw material on the inclined plate 27 to avoid throwing away the remaining raw material in the heating box 21 after discharging, thereby reducing the waste of raw materials.

[0021] A mounting frame 4 is fixed on the top surface of the rotating plate 32, a slider 43 is slidably provided inside the mounting frame 4, a scraper 44 is fixed on one side of the slider 43, a slide rod 41 is fixed inside the mounting frame 4, the slider 43 is slidably sleeved on the outer surface of the slide rod 41, and a second spring 42 is fixedly connected between the inner wall of the mounting frame 4 and the slider 43.

[0022] By adopting the above technical solution, when the rotating plate 32 rotates, it can drive the scraper 44 to scrape the raw materials on the inner wall of the heating box 21. When the bottom end of the scraper 44 contacts the inclined surface of the inclined plate 27, and under the action of the second spring 42, the slider 43 is prompted to slide on the outer surface of the slide rod 41, and then the scraper 44 scrapes the raw materials adhering to the inner wall of the heating box 21, avoiding waste of raw materials.

[0023] An inclined plate 27 is fixedly provided in the heating box 21, a through groove 271 is provided in the inclined plate 27, a groove is provided in the heating box 21, the through groove 271 and the groove are interconnected, a feed pipe 25 is fixedly provided in the groove, a second solenoid valve 26 is installed on the outer surface of the feed pipe 25, a heating plate 22 is fixedly provided on the outer surface of the heating box 21, and an ammonium nitrate feed pipe 23 and an additive feed pipe 24 are fixedly provided on the top surface of the heating box 21 respectively.

[0024] By adopting the above technical solution, the second solenoid valve 26 is opened, so that the mixed raw materials are transported from the feeding pipe 25 to the vacuum expansion and crystallization chamber 11 for expansion and crystallization. The ammonium nitrate raw material is added through the ammonium nitrate feeding pipe 23, and the additive is added through the additive feeding pipe 24. A heating wire is provided in the heating plate 22, so that the ammonium nitrate raw material and the additive can be preliminarily heated.

[0025] A vacuum expansion crystallization chamber 11 is fixedly installed in the fixed frame 1, the bottom end of the feeding pipe 25 is fixedly inserted in the vacuum expansion crystallization chamber 11, and a discharge pipe 12 is fixedly installed at the bottom end of the vacuum expansion crystallization chamber 11. A first solenoid valve 13 is installed on the outer surface of the discharge pipe 12.

[0026] By adopting the above technical solution, after the vacuum expansion and crystallization chamber 11 expands and crystallizes the raw materials, the first electromagnetic valve 13 is opened to allow the finished product to be discharged from the discharge pipe 12 for storage.

[0027] Working principle: First, the ammonium nitrate raw material is added through the ammonium nitrate feeding pipe 23, and the additive is added through the additive feeding pipe 24. A heating wire is provided in the heating plate 22, so that the ammonium nitrate raw material and the additive can be preliminarily heated. By turning on the motor 3, the rotating shaft 31 drives the rotating plate 32 to rotate, and then the stirring rod 33 and the movable rod 34 stir and mix the ammonium nitrate raw material and the additive. After the mixing is completed, the second solenoid valve 26 is opened, so that the ammonium nitrate raw material and the additive can be transported from the feeding pipe 25 to the vacuum expansion crystallization chamber 11. At the same time, the adjusting plate 35 can be attached to the top surface of the inclined plate 27, and the inclined plate 27 is adjusted. The ammonium nitrate raw materials on the inner wall of the heating box 21 are scraped off to avoid the residual raw materials in the heating box 21 after discharge. The rotating plate 32 rotates to drive the scraper 44 to scrape the raw materials on the inner wall of the heating box 21. When the bottom end of the scraper 44 contacts the inclined surface of the inclined plate 27, and cooperates with the action of the second spring 42, the slider 43 is prompted to slide on the outer surface of the slide rod 41, and then the scraper 44 scrapes the raw materials adhering to the inner wall of the heating box 21, avoiding the waste of raw materials and reducing the waste of raw materials. After the vacuum expansion and crystallization chamber 11 expands and crystallizes the raw materials, the first solenoid valve 13 is opened to enable the finished product to be discharged from the discharge pipe 12 for storage.

[0028] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. An expanded ammonium nitrate explosive expansion crystallization device, comprising a fixed frame (1), characterized in that: A fixing plate (2) is fixedly provided in the fixing frame (1), a heating box (21) is fixedly provided in the fixing plate (2), a motor (3) is installed at the bottom end of the heating box (21), a rotating shaft (31) is fixedly provided at the output end of the motor (3), a rotating plate (32) is fixedly provided at the top end of the rotating shaft (31), a stirring rod (33) is fixedly provided at the bottom end of the rotating plate (32), a movable rod (34) is slidably provided in the stirring rod (33), and an adjusting plate (35) is hingedly provided at the bottom end of the movable rod (34).

2. The expanded ammonium nitrate explosive expansion crystallization device according to claim 1, characterized in that: A movable ring (37) is fixedly provided at the top end of the movable rod (34), and the movable ring (37) is slidably provided on the outer surface of the stirring rod (33). A first spring (36) is fixedly connected between the inner wall of the stirring rod (33) and the movable ring (37).

3. The expanded ammonium nitrate explosive expansion crystallization device according to claim 1, characterized in that: A mounting frame (4) is fixedly provided on the top surface of the rotating plate (32), a slider (43) is slidably provided inside the mounting frame (4), and a scraper (44) is fixedly provided on one side of the slider (43).

4. The expanded ammonium nitrate explosive expansion crystallization device according to claim 3, characterized in that: A slide bar (41) is fixedly provided in the mounting frame (4), the slider (43) is slidably sleeved on the outer surface of the slide bar (41), and a second spring (42) is fixedly connected between the inner wall of the mounting frame (4) and the slider (43).

5. The expanded ammonium nitrate explosive expansion crystallization device according to claim 1, characterized in that: An inclined plate (27) is fixedly provided in the heating box (21), a through groove (271) is provided in the inclined plate (27), a groove is provided in the heating box (21), and the through groove (271) and the groove are interconnected.

6. The expanded ammonium nitrate explosive expansion crystallization device according to claim 5, characterized in that: A feeding pipe (25) is fixedly provided in the groove, a second solenoid valve (26) is installed on the outer surface of the feeding pipe (25), and a heating plate (22) is fixedly provided on the outer surface of the heating box (21).

7. The expanded ammonium nitrate explosive expansion crystallization device according to claim 1, characterized in that: An ammonium nitrate delivery pipe (23) and an additive delivery pipe (24) are fixedly provided on the top surface of the heating box (21).

8. The expanded ammonium nitrate explosive expansion crystallization device according to claim 6, characterized in that: A vacuum expansion crystallization chamber (11) is fixedly provided in the fixed frame (1), the bottom end of the feeding pipe (25) is fixedly inserted in the vacuum expansion crystallization chamber (11), and a discharge pipe (12) is fixedly provided at the bottom end of the vacuum expansion crystallization chamber (11), and a first solenoid valve (13) is installed on the outer surface of the discharge pipe (12).

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