Superfine powder vibration discharging device

Abstract

The utility model relates to an ultrafine powder vibration discharging device which is particularly suitable for the field of ultrafine powder charging in weapon ammunition warhead charging and engine charging. The device comprises a superfine powder container, a discharging support, a vibration feeding mechanism and a weighing module. A conical discharging valve body is installed in the superfine powder container, the vibration feeding mechanism comprises a vibration feeding pipeline and an anti-explosion vibrator, an angle adjusting opening is formed in the vibration feeding pipeline, and the anti-explosion vibrator is connected with the weighing module through damping supporting legs. By optimizing the angle adjusting range (0-3 degrees) of the vibration feeding pipeline and the fixing mode of the weighing module, efficient and accurate discharging of superfine powder is achieved, and meanwhile the safety and the automation level in the production process are improved.

Description

Technical Field

[0001] This utility model relates to the field of ultrafine powder feeding in weapon and ammunition warheads and engine propellants, including automatic feeding control of ultrafine explosives, ultrafine ammonium perchlorate and other powders, specifically an ultrafine powder vibration feeding device. Background Technology

[0002] In the field of automated feeding of ultrafine powders for PBX casting explosives in warhead loading and composite solid propellant loading in engine loading, the application of powders such as ultrafine explosives and ultrafine ammonium perchlorate, including 120-mesh octogen, type 5 RDX, and ultrafine ammonium perchlorate powders, is increasing. The main function of ultrafine explosives is to achieve particle size distribution with coarse-grained explosives, thereby reducing the viscosity of high-solid-content mixed explosive slurries, ensuring slurry flowability, and meeting the requirements of casting loading processes. Octogen in PBX casting explosives has an impact sensitivity of 100% and a friction sensitivity of 100%, while RDX has an impact sensitivity of 80±8% and a friction sensitivity of 76±8%, both of which are high, posing significant safety risks during production. Due to the high sensitivity and poor flowability of ultrafine explosives during the feeding process, explosive particles tend to adhere and agglomerate in the hopper and pipes, making automated conveying of the explosives difficult. In particular, the transport of explosives is prone to generating static electricity and dust, posing safety risks. Currently, in most cases, dangerous operations such as manual loading, transfer, and feeding of explosives are still required. Therefore, there is an urgent need to break through the technology of automatic feeding of ultrafine explosives, realize unmanned production processes, master automated production equipment technology, and improve the inherent safety of the production site. Powder vibration feeding technology has the characteristics of stable conveying, low noise, and multiple conveying. Addressing the issues of poor sealing at the joint and the inability to simultaneously control feeding accuracy and efficiency in vibration feeding processes, one of the key technical solutions is to improve feeding efficiency while controlling the accuracy of each feeding cycle from a structural perspective. Utility Model Content

[0003] This invention provides a vibratory feeding device for ultrafine powder to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An ultrafine powder vibratory feeding device includes an ultrafine powder container, a feeding support, a vibratory feeding mechanism, and a weighing module; a conical feeding valve body is installed inside the ultrafine powder container, the vibratory feeding mechanism includes a vibratory feeding pipe and an explosion-proof vibrator, an angle adjustment port is provided on the vibratory feeding pipe, and the explosion-proof vibrator is connected to the weighing module through shock-absorbing legs.

[0006] Furthermore, a feeding channel is provided between the ultrafine powder container and the vibrating feeding pipe of the vibrating feeding mechanism.

[0007] The angle adjustment port allows for the adjustment of the vibratory feeding pipe angle within a range of 0-3°.

[0008] The weighing module is fixed by a rocker column, adjusting nut, and high-precision support.

[0009] Compared with existing technologies, the beneficial effects of this utility model are as follows: the ultrafine powder container has a built-in conical feeding valve body that connects to the feeding bracket, which is installed on the weighing module; after the weighing module stabilizes its reading, it opens the conical feeding valve body, and the vibrating feeder stably conveys the ultrafine powder; the weighing module measures the amount of ultrafine powder being fed, and remotely controls the amplitude of the vibrating feeder to achieve precise weight control. The device provided by this utility model can meet the requirements of uniform conveying of ultrafine powders such as ultrafine explosives and ultrafine ammonium perchlorate, with a single feeding accuracy of 3‰. The overall effect is significant, and it has good application value in the field of ultrafine powder vibrating feeding. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of an ultrafine powder vibrating feeding device according to the present invention;

[0011] Figure 2 This is a schematic diagram showing the connection between the conical feeding valve body and the feeding bracket of this utility model;

[0012] Figure 3 This is a schematic diagram of the vibration feeding mechanism described in this utility model;

[0013] Figure 4 for Figure 3 Top view;

[0014] Figure 5 This is a schematic diagram of the floating design of the weighing module described in this utility model;

[0015] Figure 6 This is a schematic diagram of the structure of the adjusting nut described in this utility model;

[0016] Figure 7 This is a schematic diagram of the rocker column described in this utility model. Detailed Implementation

[0017] The technical solution of this utility model will be described in detail below with reference to specific embodiments.

[0018] Reference Figure 1-7 As shown, an ultrafine powder vibrating feeding device includes an ultrafine powder container 1, a feeding support 2, a vibrating feeding mechanism 3, and a weighing module 4. Figure 2 As shown, a conical feeding valve 5 is installed inside the ultrafine powder container, such as... Figure 3As shown, the vibratory feeding mechanism includes a vibratory feeding pipe 8 and an explosion-proof vibrator 10. An angle adjustment port 9 is provided on the vibratory feeding pipe. The explosion-proof vibrator is connected to the weighing module via shock-absorbing legs 11. A conical discharge valve body is docked with the discharge bracket, with a docking accuracy of ±0.5mm. After docking, the discharge valve body is directly connected to the discharge bracket. The discharge bracket is installed on the weighing module. The weighing module base adopts a floating design to prevent uneven load measurement and filter the inherent vibration frequency.

[0019] A feeding channel 7 is provided between the ultrafine powder container and the vibrating feeding pipe of the vibrating feeding mechanism. After the weighing module stabilizes its reading, the conical feeding valve is opened, and the powder enters the vibrating feeding mechanism through the feeding channel. The vibrating feeding mechanism stably conveys the ultrafine powder, and the weighing module records the weight loss. After reaching the weighing threshold, the vibration feeding amplitude is remotely controlled to adjust the feeding accuracy.

[0020] The angle adjustment port allows for adjustment of the vibratory feeding pipe angle within a range of 0-3°. The shock-absorbing legs and weighing module are connected by rubber, ensuring that the vibration frequency does not affect the quantitative display.

[0021] The weighing module is fixed by a rocker column 14, an adjusting nut 13, and a high-precision support 12.

[0022] In one embodiment, a conical discharge valve body 5 is installed inside the ultrafine powder container 1. The conical discharge valve body has an inclination angle of 50°, which reduces the contact area with the ultrafine powder, improves the smoothness of ultrafine powder discharge, and has high sealing performance. (Refer to...) Figure 2 As shown, after the conical feeding valve body opens, a feeding space 6 is formed between it and the ultrafine powder container 1. The feeding transition angle is 35° to prevent the ultrafine powder from impacting the weighing module. After connecting to the feeding channel 7, the ultrafine powder enters the vibrating feeding mechanism 3 under gravity. The ultrafine powder then enters the final feeding container via the vibrating feeding pipe 8. The angle of the vibrating feeding pipe can be adjusted via the angle adjustment port 9, with a maximum adjustment angle of 3°. This control method effectively improves feeding efficiency, and the feeding process includes a buffer angle to prevent the feeding speed from exceeding limits. The current adjustable range for ultrafine powder feeding efficiency is 40–60 kg / min.

[0023] Reference Figure 1-4Before the ultrafine powder is fed, the weighing module 4 is first installed, and its four feet are fixed by rocker columns, adjusting nuts, and high-precision supports. After fixing, the ultrafine powder container 1 is connected to the feeding bracket 2 using a three-point positioning and four-point support method, and the weighing module 4 displays the current weight. After the ultrafine powder is fed, the vibration feeding mechanism 3 activates the explosion-proof vibrator 10 to convey the ultrafine powder. The amplitude of the mechanism generated during conveying is filtered by the shock-absorbing legs 11. To ensure feeding efficiency, if the amplitude is too large, the rocker column mechanism at the bottom of the weighing module 4 performs secondary vibration filtering to further improve the weighing accuracy. A weighing threshold value can be set at the control end. When the weighing module reaches this value, the vibrator 10 immediately adjusts the output voltage to perform fine control of feeding. This control method can meet the requirements of uniform conveying of ultrafine powder and a single feeding accuracy of 3‰.

[0024] After debugging and practical use, this utility model can meet the requirements for feeding efficiency and precision of powders such as ultrafine explosives and ultrafine ammonium perchlorate. The overall effect is significant, and it has good application value in the field of ultrafine powder vibration feeding.

Claims

1. A vibrating feeding device for ultrafine powder, characterized in that, It includes an ultrafine powder container, a feeding support, a vibrating feeding mechanism, and a weighing module; the ultrafine powder container is equipped with a conical feeding valve body, the vibrating feeding mechanism includes a vibrating feeding pipe and an explosion-proof vibrator, the vibrating feeding pipe is provided with an angle adjustment port, and the explosion-proof vibrator is connected to the weighing module through shock-absorbing legs.

2. The ultrafine powder vibrating feeding device according to claim 1, characterized in that, A feeding channel is provided between the ultrafine powder container and the vibrating feeding pipe of the vibrating feeding mechanism.

3. The ultrafine powder vibrating feeding device according to claim 1, characterized in that, The angle adjustment port allows for the adjustment of the vibratory feeding pipe angle within a range of 0-3°.

4. The ultrafine powder vibrating feeding device according to claim 1, characterized in that, The weighing module is fixed by a rocker column, adjusting nut, and high-precision support.

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