Solid charging device for energetic materials

Abstract

This utility model relates to the field of energetic material feeding and screening technology, and proposes a solid feeding device for energetic materials, including an upper cover with a feed window at the upper end; a feeding cylinder disposed at the lower end of the upper cover, forming a cavity structure with the upper cover, and a feeding pipe at the lower part of the feeding cylinder; a rotating disk rotatably sleeved inside the upper side of the feeding cylinder, with a circular screen in the center of the rotating disk; a brush roller rotatably disposed inside the feeding cylinder and located below the screen, with the bristles of the brush roller used to penetrate the filter holes of the screen, and several brush rollers arranged sequentially at intervals below the screen, one of which is arranged along the diameter direction of the screen; and a feeding bin, movable parallel to the radial direction of the screen and disposed inside the feed window, with a discharge port at the lower part of the feeding bin opposite to the position of the screen. Through the above technical solution, the problem of slow screening efficiency of energetic materials before feeding in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of energetic material feeding and screening technology, and in particular to a solid feeding device for energetic materials. Background Technology

[0002] Before adding solid energetic materials, impurities need to be screened to prevent impurities from entering the product and affecting its quality.

[0003] In the prior art, for example, the patent with authorization announcement number CN215597948U discloses a "feeding device for vacuum drying of energetic materials", which screens energetic materials by rotating filter cylinder. However, energetic materials are flammable and explosive substances, and cannot generate violent friction or vibration during screening. Therefore, the rotation speed of the filter cylinder is greatly limited, affecting the screening efficiency. Moreover, when the filter cylinder is blocked, it is not easy to clean, which affects the screening efficiency.

[0004] The problem of slow screening efficiency of energetic materials before feeding needs to be solved in the existing technology. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a solid feeding device for energetic materials, which addresses the above-mentioned technical deficiencies and solves the problem of slow screening efficiency of energetic materials before feeding in the prior art.

[0006] The technical solution adopted by this utility model is: to provide a solid feeding device for energetic materials, comprising:

[0007] The top cover has a feed window at the top;

[0008] A feeding cylinder is located at the lower end of the upper cover and forms a cavity structure with the upper cover. The lower part of the feeding cylinder has a feeding pipe.

[0009] A rotating disc is rotatably mounted inside the upper side of the feeding cylinder, and a circular screen is located in the middle of the rotating disc;

[0010] A plurality of brush rollers are provided, wherein the brush rollers are rotatably disposed inside the feeding cylinder and located below the screen, and the bristle ends of the brush rollers are used to penetrate the filter holes of the screen. The plurality of brush rollers are arranged sequentially at intervals below the screen, and one of the brush rollers is arranged along the diameter direction of the screen.

[0011] A feeding bin is movable within the feeding window, parallel to the radial direction of the screen, and the lower part of the feeding bin has a discharge port opposite to the position of the screen.

[0012] Further optimization of this technical solution also includes:

[0013] The main shaft is located at the center of the screen.

[0014] A plurality of partitions are provided, which are arranged on the upper end of the screen in a radial direction parallel to the screen mesh. The plurality of partitions are arranged in a ring-shaped interval array. One end of each partition is connected to the rotating disk and the other end is connected to the main shaft.

[0015] Further optimization of this technical solution also includes:

[0016] A drive motor is located at the upper center of the upper cover and is used to drive the main shaft to rotate. The feed window is located next to the drive motor.

[0017] To further optimize this technical solution, the axes of the several brush rollers are arranged in parallel.

[0018] Further optimization of this technical solution also includes:

[0019] A scraper brush is disposed at the lower end of the discharge port, and the lower end of the scraper brush extends toward the screen.

[0020] To further optimize this technical solution, two rows of scraper brushes are arranged at the lower end of the discharge port, and energetic materials are discharged from between the two rows of scraper brushes onto the screen.

[0021] Further optimization of this technical solution also includes:

[0022] A plurality of buffer plates are arranged sequentially at intervals below the brush roller.

[0023] To further optimize this technical solution, the buffer plate has two oppositely arranged inclined surfaces, with the middle part higher than the two sides.

[0024] The beneficial effects of this utility model are as follows:

[0025] 1. The screen rotates slowly, changing the contact area between the screen and the brush roller. The brush roller rotates below the screen to accelerate the passage of energetic materials through the screen, thus completing the screening. High-speed rotation is not required, which can avoid clogging and improve screening efficiency. When the end of the brush roller passes through the screen, it helps to disperse the agglomerated energetic materials and reduce waste.

[0026] 2. Energetic materials enter the screen through a reciprocating feeding hopper, which can avoid local accumulation of materials, reduce the probability of screen blockage, and maintain efficient screening. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a top view of the structure of this utility model;

[0029] Figure 3 For the present utility model Figure 2 Schematic diagram of the cross-sectional structure at position AA;

[0030] Figure 4 This is a schematic diagram of the internal structure of the feeding cylinder of this utility model;

[0031] The markings in the diagram are as follows: 1. Top cover; 101. Feed window; 2. Feeding cylinder; 201. Feeding pipe; 3. Rotary disc; 301. Screen; 302. Main shaft; 303. Partition plate; 4. Brush roller; 5. Feeding bin; 501. Discharge port; 6. Drive motor; 7. Scraper brush; 8. Buffer plate; 801. Inclined surface. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0034] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection 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.

[0035] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] like Figure 1-4As shown, a solid feeding device for energetic materials includes: an upper cover 1 with a feed window 101 at the upper end; a feeding cylinder 2 disposed at the lower end of the upper cover 1, forming a cavity structure with the upper cover 1, and a feeding pipe 201 at the lower part of the feeding cylinder 2; a rotating disk 3 rotatably sleeved inside the upper side of the feeding cylinder 2, and a circular screen 301 in the middle of the rotating disk 3; several brush rollers 4 rotatably disposed inside the feeding cylinder 2 and located below the screen 301, with the bristles of the brush rollers 4 used to penetrate the filter holes of the screen 301, and the several brush rollers 4 arranged sequentially at intervals below the screen 301, one of which is arranged along the diameter direction of the screen 301; and a feeding bin 5 movable in the feed window 101 parallel to the radial direction of the screen 301, with a discharge port 501 at the lower part of the feeding bin 5 opposite to the position of the screen 301.

[0037] The axes of several brush rollers 4 are arranged in parallel.

[0038] In use, energetic material enters the screen 301 from the feeding bin 5. The feeding bin 5 moves back and forth within the feed window 101 in a radial direction parallel to the screen 301, reducing localized excessive accumulation on the screen 301. The rotating disk 3 can rotate at low speed, changing the contact area with the brush rollers 4. Several brush rollers 4 are arranged sequentially at intervals, and each brush roller 4 is cylindrical. These brush rollers 4 can be arranged in parallel. The rotation of the screen 301 causes the brush rollers 4 to completely cover the screen 301. One brush roller 4 is in contact with the screen 301. The diameters of the brush rollers 1 and 4 are in the same direction, and the axial length of the brush roller 4 can cover the diameter of the screen 301. The brush roller 4 passes through the central area of ​​the screen 301, ensuring that the screen 301 is completely covered by the brush roller 4. The ends of the single bristles of the brush roller 4 can pass through the filter holes of the screen 301, which can clean the screen 301 and accelerate the screening of energetic materials through the screen 301. The screening process does not require high-speed rotation or high-frequency vibration. The brush roller 4 is made of a relatively flexible material, and the rotation speed of the brush roller 4 can also be relatively slow, which can achieve rapid screening.

[0039] The rotating disk 3 has a concave center and a screen 301 at the bottom, which facilitates material storage above the screen 301. During the rotation of the screen 301, local areas will successively contact different brush rollers 4. When in contact, because the screen 301 rotates circumferentially and the brush rollers 4 are arranged in parallel intervals, the energetic material passing through the filter holes experiences different force directions when the filter holes contact different brush rollers 4 in local areas. This makes it less likely for the energetic material to be squeezed and connected within the filter holes, reducing the probability of clogging. For example, when different brush rollers 4 rotate through the filter holes, they all rotate relative to the right. This means that the energetic material passing through the filter holes is always pushed to the right, which can easily cause accumulation on the right side within the filter holes. Changing the direction makes it less likely for accumulation and clogging to form on one side.

[0040] The reciprocating movement of the feeding bin 5 can be achieved by a linear reciprocating drive mechanism such as a cylinder assembly or a hydraulic cylinder assembly.

[0041] The brush roller 4 can be driven by a single rotating motor, or synchronously driven by a gear transmission structure or belt transmission structure. The bristle density of the brush roller 4 in the illustration does not represent the actual density; for clarity, the bristles are not shown passing through the filter holes of the screen 301.

[0042] Furthermore, it also includes: a main shaft 302, which is set at the center of the screen 301; and several partitions 303, which are arranged on the upper end of the screen 301 in a radial direction parallel to the screen 301. The several partitions 303 are arranged in a ring-shaped interval array, with one end of the partition 303 connected to the rotating disk 3 and the other end connected to the main shaft 302.

[0043] It also includes: a drive motor 6, which is located at the upper middle part of the upper cover 1, for driving the main shaft 302 to rotate, and the feed window 101 is located next to the drive motor 6.

[0044] During use, the drive motor 6 drives the rotating disk 3 to rotate via the main shaft 302, which in turn drives the screen 301 to rotate. Through the spoke-shaped baffles 303, a separation zone can be formed between every two adjacent baffles 303, which can perform multi-zone processing of energetic materials, reduce the long-distance movement and mixing of energetic materials on the screen 301, and restrict movement, which can improve the effective contact of the brush roller 4 with some energetic materials, thus loosening the agglomerated materials.

[0045] The partition plate 303 is fixed on the screen 301 and connected to the rotating disk 3 and the main shaft 302, which can enhance the overall structural strength. The drive motor 6 is driven from the axis of the screen 301, and the outer edge of the rotating disk 3 can rotatably overlap the inner wall of the feeding cylinder 2 to provide upward support.

[0046] Furthermore, it also includes: a scraper brush 7, which is set at the lower end of the discharge port 501, with the lower end of the scraper brush 7 extending toward the screen 301.

[0047] During use, the lower discharge port 501 of the feeding bin 5 is located above the screen 301. The scraper brush 7 can scrape and disperse energetic materials that have accumulated to a certain height, making the energetic materials more evenly dispersed. Reducing the height of local accumulation can reduce the downward pressure on the bottom energetic materials, making the brush roller 4 more mobile and allowing it to pass through the screen 301 more efficiently.

[0048] Furthermore, two rows of scraper brushes 7 are provided at the lower end of the discharge port 501, and energetic materials are discharged from between the two rows of scraper brushes 7 onto the screen 301.

[0049] When in use, two rows of scraper brushes 7 are set, and energetic material passes through the space between the two rows of scraper brushes 7. When there is energetic material on the screen 301, the lower part of the scraper brush 7 is in a bent state and abuts against the energetic material, which can make some of the energetic material slide down more smoothly and reduce impact.

[0050] Furthermore, it also includes: a buffer plate 8, of which several buffer plates 8 are arranged sequentially at intervals below the brush roller 4. The buffer plate 8 has two oppositely arranged inclined surfaces 801, with the middle part higher than the two sides.

[0051] When in use, the bottom of the feeding bin 5 needs to be at a certain height to facilitate the accumulation of energetic materials after screening. Setting up a buffer plate 8 can reduce the height of the energetic materials falling at one time and reduce impact. Multiple buffer plates 8 can be set in a horizontal array at intervals, and multiple layers can be designed in the vertical direction, and staggered to leave a channel for the energetic materials to slide down.

[0052] The cross-section of the buffer plate 8 can be an inverted "V" shape, with the tip pointing upwards, meaning the middle is higher than the sides. The left and right sides are opposite inclined surfaces 801, which tilt downwards to guide the energetic material to gradually fall and accumulate.

[0053] In this application, an anti-static structure can be provided according to existing technology.

[0054] The top cover 1 and the feeding cylinder 2 can be split into upper and lower sections. Impurities or clumps of material remaining on the screen 301 can be collected and processed by opening the top cover 1.

[0055] It is understood that this utility model has been described through some embodiments, and those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A solid feeding device for energetic materials, characterized in that, include: The top cover (1) has a feed window (101) at the top; A feeding cylinder (2) is provided at the lower end of the upper cover (1) and forms a cavity structure with the upper cover (1). The lower part of the feeding cylinder (2) has a feeding pipe (201). A rotating disc (3) is rotatably mounted on the upper side inside the feeding cylinder (2), and the rotating disc (3) has a circular screen (301) in the middle. A plurality of brush rollers (4) are provided. The brush rollers (4) are rotatably disposed inside the feeding cylinder (2) and located below the screen (301). The bristle ends of the brush rollers (4) are used to penetrate the filter holes of the screen (301). The plurality of brush rollers (4) are arranged sequentially at intervals below the screen (301), and one of the brush rollers (4) is arranged along the diameter direction of the screen (301). The feeding bin (5) is moved and disposed in the feed window (101) in a radial direction parallel to the screen (301), and the lower part of the feeding bin (5) has a discharge port (501) opposite to the position of the screen (301).

2. The solid feeding device for energetic materials according to claim 1, characterized in that, Also includes: The main shaft (302) is located at the center of the screen (301); A plurality of partitions (303) are provided, the partitions (303) being arranged parallel to the radial direction of the screen (301) at the upper end of the screen (301). The plurality of partitions (303) are arranged in a ring-shaped interval array. One end of the partition (303) is connected to the rotating disk (3), and the other end is connected to the main shaft (302).

3. The solid feeding device for energetic materials according to claim 2, characterized in that, Also includes: A drive motor (6) is located at the upper middle part of the upper cover (1) and is used to drive the main shaft (302) to rotate. The feed window (101) is located next to the drive motor (6).

4. The solid feeding device for energetic materials according to claim 1, characterized in that, The axes of the several brush rollers (4) are arranged in parallel.

5. A solid feeding device for energetic materials according to claim 1, characterized in that, Also includes: A scraper brush (7) is provided at the lower end of the discharge port (501), and the lower end of the scraper brush (7) extends toward the screen (301).

6. A solid feeding device for energetic materials according to claim 5, characterized in that, The scraper brush (7) is arranged in two rows at the lower end of the discharge port (501), and the energetic material is discharged from between the two rows of scraper brushes (7) onto the screen (301).

7. A solid feeding device for energetic materials according to claim 1, characterized in that, Also includes: A buffer plate (8) is provided, and the buffer plates (8) are arranged sequentially at intervals below the brush roller (4).

8. A solid feeding device for energetic materials according to claim 7, characterized in that, The buffer plate (8) has two oppositely arranged inclined surfaces (801), with the middle part higher than the two sides.

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