A vacuum drying cabinet for explosive slurry

Abstract

The utility model relates to explosive slurry's vacuum drying cabinet technical field, and disclose a kind of for explosive slurry's vacuum drying cabinet, including drying cabinet, the lid door of drying cabinet one side rotation connection, the pressure gauge and suction pipe of drying cabinet upper side setting, the drying cabinet inside is provided with drying stirring mechanism and vacuum filtering mechanism, the vacuum filtering mechanism is arranged in drying stirring mechanism side, the drying stirring mechanism includes motor, the motor is fixedly connected in drying cabinet interior, the motor output end is fixedly connected with socket, the socket inside slidingly connected with plug shaft, the plug shaft outer wall rotationally connected with drying barrel, the plug shaft outer wall is fixedly connected with multiple stirring blades, the vacuum filtering mechanism is used to capture the floating particles in drying cabinet interior, to reduce the dust concentration in drying cabinet interior, the drying stirring mechanism is used to stir explosive slurry, so that explosive slurry can be more evenly dried.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum drying cabinets for explosive slurries, specifically a vacuum drying cabinet for explosive slurries. Background Technology

[0002] Explosives are high-energy-density substances that release large amounts of gas and heat through rapid chemical reactions, generating high-pressure shock waves. Slurry is a flowable suspension mixture of solid particles (such as explosive powder) and liquid (water or solvent), facilitating safe transport and molding. Vacuum drying involves placing the slurry containing water or solvent in a sealed container and drawing a vacuum, reducing the ambient pressure and significantly lowering the solvent's boiling point, thus achieving efficient evaporation and removal at lower temperatures. This technology is particularly suitable for heat-sensitive substances (such as certain explosives), avoiding the risk of high-temperature decomposition, shortening drying time, and improving product uniformity and safety; it is one of the key process steps in the manufacture of energetic materials.

[0003] Because the slurry is quite viscous, it needs to be stirred to increase the uniformity of drying. However, common vacuum drying cabinets are usually multi-layered, which makes it inconvenient to dry explosive slurries. At the same time, since the slurry is dried by evaporation, the water vapor carries a large number of explosive particles. Although it is common to use collection bags for filtration in the field of medicinal material drying, collection bags can only collect larger explosive particles. This makes it easy for accidents to occur when the dust concentration inside the cabinet increases. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum drying cabinet for explosive slurry to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum drying cabinet for explosive slurry, comprising a drying chamber, a cover door rotatably connected to one side of the drying chamber, a pressure gauge and a pressure suction pipe disposed on the upper side of the drying chamber, and a drying stirring mechanism and a vacuum filtration mechanism disposed inside the drying chamber, wherein the vacuum filtration mechanism is disposed on one side of the drying stirring mechanism;

[0006] The drying and stirring mechanism includes a motor, which is fixedly connected inside the drying chamber. A socket is fixedly connected to the output end of the motor, and a shaft is slidably connected inside the socket. A drying barrel is rotatably connected to the outer wall of the shaft, and multiple stirring blades are fixedly connected to the outer wall of the shaft. Multiple mounting platforms are fixedly connected inside the drying chamber, and multiple supports are fixedly connected to the lower outer wall of the drying barrel. Multiple screws are threadedly connected inside the mounting platforms, and a rod is slidably connected inside one of the mounting platforms. All screws are slidably connected inside the supports, and the rod is fixedly connected to the supports.

[0007] Preferably, the stirring blade has a crescent-shaped cross-section, is inclined, and is evenly distributed in a spiral pattern on the outer wall of the insert shaft.

[0008] Preferably, the screws are all located on the side close to the cover, and the insert rods are located on the side away from the cover.

[0009] Preferably, the socket has a polygonal slot inside, and the insertion shaft slides into the polygonal slot.

[0010] Preferably, the vacuum filtration mechanism includes a mounting base, the mounting platform being fixedly connected to the upper side of the drying chamber, an electric actuator being fixedly connected inside the mounting base, a piston cylinder being fixedly connected inside the drying chamber, a piston plate being slidably connected inside the piston cylinder, the piston plate being fixedly connected to the output shaft of the electric actuator, the output shaft of the electric actuator being slidably connected to the upper side of the piston cylinder, the output shaft of the electric actuator being slidably connected to the drying chamber, a cleaning cylinder being fixedly connected inside the drying chamber, a sponge being fixedly connected inside the cleaning cylinder, a cotton rod being fixedly connected to the lower surface of the sponge, the cotton rod being fixedly connected to the lower inner wall of the cleaning cylinder, a water injection pipe being connected to the upper end of the cleaning cylinder, a connecting pipe being connected between the lower interior of the cleaning cylinder and the lower interior of the piston cylinder, a plurality of baffles being fixedly connected inside the connecting pipe, a spring being fixedly connected to one side of each baffle, a ball being fixedly connected to one end of each spring, the ball being positioned between the baffles, and the ball being positioned at the end of the spring near the piston cylinder.

[0011] Preferably, the diameter of the ball stop is between the inner and outer diameters of the baffle.

[0012] Preferably, the piston cylinder has a pressure discharge port at its upper end.

[0013] Compared with the prior art, this utility model provides a vacuum drying cabinet for explosive slurry, which has the following beneficial effects:

[0014] The vacuum filtration mechanism is used to capture floating particles inside the drying chamber. This mechanism draws airflow through a piston structure and ensures that the air pressure inside the drying chamber is not affected through a reasonable channel. This mechanism wets the explosive dust by transferring particles in the airflow, thereby reducing the dust concentration inside the drying chamber.

[0015] The drying and stirring mechanism is used to stir the explosive slurry, so that the explosive slurry can be dried more evenly, ensuring that the mixing of the mixture is not affected. At the same time, it can increase the exposed area of ​​the explosive slurry, thereby increasing the drying speed. In addition, the mechanism is easy to disassemble and clean. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a schematic diagram of a half-section of the present invention;

[0020] Figure 4 This is a schematic diagram of the insert shaft in this utility model;

[0021] Figure 5 This is a schematic diagram of the cleaning cylinder in this utility model.

[0022] In the diagram: 1. Drying oven; 2. Door; 3. Pressure gauge; 4. Pressure suction pipe; 5. Drying and stirring mechanism; 501. Motor; 502. Socket; 503. Insert shaft; 504. Drying drum; 505. Stirring blade; 506. Mounting platform; 507. Support; 508. Screw; 509. Insert rod; 6. Vacuum filtration mechanism; 601. Mounting base; 602. Electric actuator; 603. Piston cylinder; 604. Piston plate; 605. Cleaning cylinder; 606. Sponge; 607. Cotton rod; 608. Water injection pipe; 609. Connecting pipe; 610. Baffle; 611. Spring; 612. Baffle ball. Detailed Implementation

[0023] 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.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0025] Please see Figure 1-5 This utility model provides a technical solution: a vacuum drying cabinet for explosive slurry, including a drying box 1, a cover door 2 rotatably connected to one side of the drying box 1, a pressure gauge 3 and a pressure suction pipe 4 set on the upper side of the drying box 1, and a drying stirring mechanism 5 and a vacuum filtration mechanism 6 set inside the drying box 1, with the vacuum filtration mechanism 6 set on one side of the drying stirring mechanism 5.

[0026] This mechanism is used to assist in the drying of explosive slurry. It improves the uniformity and speed of drying. The drying and stirring mechanism 5 includes a motor 501, which is fixedly connected inside the drying chamber 1. The output end of the motor 501 is fixedly connected to a socket 502. A shaft 503 is slidably connected inside the socket 502. A drying barrel 504 is rotatably connected to the outer wall of the shaft 503. Multiple stirring blades 505 are fixedly connected to the outer wall of the shaft 503. Multiple mounting platforms 506 are fixedly connected inside the drying chamber 1. Multiple supports 507 are fixedly connected to the lower outer wall of the drying barrel 504. Multiple screws 508 are threadedly connected inside the mounting platforms 506. A rod 509 is slidably connected inside one of the mounting platforms 506. All screws 508 are slidably connected inside the supports 507. The rod 509 is fixedly connected to the support 507.

[0027] Furthermore, the stirring blade 505 has a crescent-shaped cross-section, is inclined, and is evenly distributed in a spiral shape on the outer wall of the insert shaft 503.

[0028] Furthermore, the screws 508 are all located on the side close to the cover 2, and the insert rods 509 are located on the side away from the cover 2.

[0029] Furthermore, the socket 502 has a polygonal slot inside, and the insert shaft 503 slides into the polygonal slot. Example

[0030] This mechanism is used to filter dust in drying chamber 1. It enhances the filtration efficiency. (See attached image.) Figure 1-5Furthermore, in conjunction with Embodiment 1, the vacuum filtration mechanism 6 includes a mounting base 601, a mounting platform 506 fixedly connected to the upper side of the drying chamber 1, an electric push rod 602 fixedly connected inside the mounting base 601, a piston cylinder 603 fixedly connected inside the drying chamber 1, a piston plate 604 sealed and slidably connected inside the piston cylinder 603, the piston plate 604 fixedly connected to the output shaft of the electric push rod 602, the output shaft of the electric push rod 602 slidably connected to the upper side of the piston cylinder 603, and the output shaft of the electric push rod 602 sealed and slidably connected to the drying chamber 1, a cleaning cylinder 605 fixedly connected inside the drying chamber 1, a sponge 606 fixedly connected inside the cleaning cylinder 605, a cotton rod 607 fixedly connected to the lower surface of the sponge 606, and the cotton rod 607 fixedly connected to the lower inner wall of the cleaning cylinder 605. A water injection pipe 608 is provided. A connecting pipe 609 is provided between the lower end of the cleaning cylinder 605 and the lower end of the piston cylinder 603. Multiple baffles 610 are fixedly connected inside the connecting pipe 609. A spring 611 is fixedly connected to one side of the baffle 610. A retaining ball 612 is fixedly connected to one end of the spring 611. The retaining ball 612 is located between the baffles 610 and at the end of the spring 611 close to the piston cylinder 603. An exhaust hole is opened on one side of the upper end of the cleaning cylinder 605. The lower end of the piston cylinder 603 is provided with a one-way structure identical to that of the baffles 610, springs 611 and retaining ball 612. In this structure, the retaining ball 612 is located at the lower end of the spring 611. If the output shaft of the electric actuator 602 is not well sealed, the electric actuator 602 can be isolated with a box and installed inside the drying oven 1.

[0031] Furthermore, the diameter of the ball stop 612 is set between the inner and outer diameters of the baffle 610.

[0032] Furthermore, a pressure relief port is provided at the upper end of the piston cylinder 603.

[0033] In actual operation, when using this device, the user puts the explosive slurry into the drying tank 504. Then, when the user moves the drying tank 504, the mounting platform 506 aligns with the holes on the mounting base 601. The user then screws the screw 508 into the mounting platform 506. At this point, the insertion shaft 503 and the socket 502 are connected. The user starts the motor 501 and the suction device. The motor 501 drives the insertion shaft 503 to rotate, causing the stirring blades 505 to rotate. Because the stirring blades 505 have a certain curvature and are spirally distributed, they can lift the slurry while stirring, producing a turbine-like water-lifting effect, reducing the unevenness of the slurry and increasing the drying speed. During the slurry drying process, the user can inject water into the water pipe 601. Water is supplied and the electric actuator 602 is activated. When the electric actuator 602 outputs, it drives the piston plate 604 to move back and forth. When the piston plate 604 moves, it changes the air pressure inside the piston cylinder 603. Due to the one-way setting of the ball stop 612 and the spring 611, and the exhaust hole at the upper end of the piston cylinder 603, the lower end of the piston cylinder 603 is filled with the gas inside the drying chamber 1. The discharged gas and the drawn-in gas complement each other. When the output end of the electric actuator 602 moves downward, due to the presence of the spring 611 and the ball stop 612, the gas with dust enters the cleaning cylinder 605 through the connecting pipe 609. The gas passes through the water and the damp sponge 606, causing the dust in the gas to mix with the water. The gas is then discharged through the top of the cleaning cylinder 605.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A vacuum drying cabinet for explosive slurry, comprising a drying chamber (1), a cover (2) rotatably connected to one side of the drying chamber (1), a pressure gauge (3) and a pressure suction pipe (4) disposed on the upper side of the drying chamber (1), characterized in that: The drying oven (1) is equipped with a drying stirring mechanism (5) and a vacuum filtration mechanism (6), with the vacuum filtration mechanism (6) located on one side of the drying stirring mechanism (5). The drying and stirring mechanism (5) includes a motor (501), which is fixedly connected inside the drying chamber (1). The output end of the motor (501) is fixedly connected to a socket (502). A plug shaft (503) is slidably connected inside the socket (502). A drying barrel (504) is rotatably connected to the outer wall of the plug shaft (503). Multiple stirring blades (505) are fixedly connected to the outer wall of the plug shaft (503). Multiple mounting platforms (506) are fixedly connected inside the drying chamber (1). Multiple supports (507) are fixedly connected to the lower outer wall of the drying barrel (504). Multiple screws (508) are threadedly connected inside the multiple mounting platforms (506). A plug rod (509) is slidably connected inside one of the mounting platforms (506). All screws (508) are slidably connected inside the support (507). The plug rod (509) is fixedly connected to the support (507).

2. The vacuum drying cabinet for explosive slurry according to claim 1, characterized in that: The stirring blade (505) has a crescent-shaped cross-section, the stirring blade (505) is inclined, and the stirring blade (505) is evenly distributed in a spiral shape on the outer wall of the insert shaft (503).

3. A vacuum drying cabinet for explosive slurry according to claim 1, characterized in that: The screws (508) are all located on the side close to the cover (2), and the inserts (509) are located on the side away from the cover (2).

4. A vacuum drying cabinet for explosive slurry according to claim 1, characterized in that: The socket (502) has a polygonal slot inside, and the insertion shaft (503) slides in conjunction with the polygonal slot.

5. A vacuum drying cabinet for explosive slurry according to claim 1, characterized in that: The vacuum filtration mechanism (6) includes a mounting base (601), a mounting platform (506) fixedly connected to the upper side of the drying chamber (1), an electric actuator (602) fixedly connected inside the mounting base (601), a piston cylinder (603) fixedly connected inside the drying chamber (1), a piston plate (604) slidably connected inside the piston cylinder (603), the piston plate (604) fixedly connected to the output shaft of the electric actuator (602), the output shaft of the electric actuator (602) slidably connected to the upper side of the piston cylinder (603), the output shaft of the electric actuator (602) slidably connected to the drying chamber (1), a cleaning cylinder (605) fixedly connected inside the drying chamber (1), and a sponge (605) fixedly connected inside the cleaning cylinder (605). 6) A cotton rod (607) is fixedly connected to the lower surface of the sponge (606). The cotton rod (607) is fixedly connected to the inner wall of the lower end of the cleaning cylinder (605). A water injection pipe (608) is connected to the upper end of the cleaning cylinder (605). A connecting pipe (609) is connected between the lower end of the cleaning cylinder (605) and the lower end of the piston cylinder (603). Multiple baffles (610) are fixedly connected inside the connecting pipe (609). A spring (611) is fixedly connected to one side of the baffle (610). A stop ball (612) is fixedly connected to one end of the spring (611). The stop ball (612) is arranged between the baffles (610) and is arranged at the end of the spring (611) near the piston cylinder (603).

6. A vacuum drying cabinet for explosive slurry according to claim 5, characterized in that: The diameter of the ball (612) is between the inner and outer diameters of the baffle (610).

7. A vacuum drying cabinet for explosive slurry according to claim 5, characterized in that: The piston cylinder (603) has a pressure discharge port at its upper end.

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