A device for sizing aluminum phosphide

Abstract

The utility model provides a kind of aluminium phosphide particle size screening device, including box, the box bottom is equipped with elastic support column, the box top is equipped with feed inlet, the box is equipped with screening chamber, the screening chamber is equipped with particle size screening disc, particle size screening disc one end is equipped with hinged rotating part, particle size screening disc other end is equipped with discharge gate, particle size screening disc bottom is equipped with screen, particle size screening disc discharge gate bottom is equipped with electric telescopic link, particle size screening disc top is equipped with connecting frame and vibration motor, the screening chamber bottom is equipped with deflector and discharge hopper.The utility model is connected with the hinged connection dynamic inclination adjustment of electric telescopic link and particle size screening disc by multistage gradient screen, can conveniently adjust the horizontal inclination of particle size screening disc, make aluminium phosphide fully screen when particle size screening disc horizontal, then adjust gradient and let material enter next stage screening, ensure the fullness of screening and the smoothness of material transmission.

Description

Technical Field

[0001] This utility model mainly relates to the field of aluminum phosphide screening technology, specifically an aluminum phosphide particle size screening device. Background Technology

[0002] Aluminum phosphide, a highly toxic insecticide, is widely used for pest control due to its rapid action, significant effects, and ease of application. It is commonly used for controlling pests in stored goods such as grains, rapeseed, feed, medicinal herbs, tobacco, tea, paper, wool, and hemp. Aluminum phosphide rapidly decomposes into the highly toxic gas phosphine upon contact with acid or water, effectively killing insects. The insecticidal effect of phosphine gas was first discovered in 1936 by a German biochemist who observed its effectiveness in fumigating grain weevils. Its superior properties compared to other fumigants have led to its rapid adoption. For ease of use, aluminum phosphide production requires crushing and sorting of particles of different sizes.

[0003] Existing aluminum phosphide screening equipment mostly uses a single-layer screen or a fixed tilt angle design, which suffers from problems such as low screening efficiency, inaccurate particle size classification, and material accumulation and clogging. Traditional equipment struggles to achieve multi-stage continuous screening and dynamic adjustment of the screen tilt angle, resulting in small-particle residues or large-particle leakage, affecting product quality. Furthermore, some equipment cannot effectively control the movement of materials during screening, leading to insufficient material passage through the screen and low screening efficiency. Utility Model Content

[0004] To address the shortcomings of current technology, this utility model combines existing technology and, based on practical applications, provides an aluminum phosphide particle size screening device.

[0005] The technical solution of this utility model is as follows:

[0006] A particle size screening device for aluminum phosphide includes a housing with an elastic support column at the bottom for fixed support on the ground. A feed inlet is located at the top of the housing. Multiple screening chambers are arranged inside the housing from left to right. Each screening chamber contains a particle size screening disc. A hinged rotating component is located at one end of the particle size screening disc, and a discharge port is located at the other end. A screen is located at the bottom of the particle size screening disc. An electric telescopic rod is located at the bottom of one end of the discharge port of the particle size screening disc. A connecting frame is located at the top of the particle size screening disc, and a vibration motor is mounted on the connecting frame. A guide plate is located at the bottom of the screening chambers, and a discharge funnel is located at the bottom of the guide plate.

[0007] Furthermore, the extended end of the electric telescopic rod is connected to the particle size screening disc via a hinged snap fastener, and the bottom of the electric telescopic rod is fixed to the side wall of the screening chamber.

[0008] The particle size screening disc is tilted and raised by an electric telescopic rod to adjust its horizontal inclination. This allows aluminum phosphide to be fully screened when the disc is horizontal before adjusting the slope to enter the next stage for further screening, ensuring that aluminum phosphide can be fully screened according to particle size.

[0009] Furthermore, the mesh diameter of the screen increases progressively from left to right in each screening chamber, while the mesh diameter of the screen in the same screening chamber is the same.

[0010] This facilitates the step-by-step screening of aluminum phosphide particles of different sizes.

[0011] Furthermore, the discharge port is shaped like a funnel, with both sides tilting inwards.

[0012] It facilitates the aggregation of aluminum phosphide particles.

[0013] Furthermore, a discharge port is provided on one side wall of the screening chamber corresponding to the discharge port, and the discharge ports all extend out of the discharge port.

[0014] This facilitates the aggregation of aluminum phosphide particles, which then fall into the next particle size screening tray.

[0015] Furthermore, the height of the particle size screening discs in the screening chamber decreases progressively from left to right, and the discharge port of the adjacent upper-level particle size screening disc is located above the screen of the adjacent lower-level particle size screening disc.

[0016] The aluminum phosphide particles, after being screened, fall onto the screen of the next particle size screening disc in stages.

[0017] Furthermore, the feed inlet is located above the screen of the first-stage particle size screening disc.

[0018] This facilitates the falling of aluminum phosphide particles from the feed inlet onto the screen of the first-stage particle size screening disc.

[0019] Furthermore, the particle size screening disc is mounted on one side wall of the screening chamber via a hinged rotating component.

[0020] The particle size screening disc can be adjusted for horizontal tilt by raising and lowering the electric telescopic rod.

[0021] The beneficial effects of this utility model are:

[0022] 1. This utility model uses a multi-stage gradient screen combined with an electric telescopic rod and a hinged connection with the particle size screening disc for dynamic tilt adjustment. This allows for convenient adjustment of the horizontal tilt of the particle size screening disc, ensuring that aluminum phosphide is fully screened when the particle size screening disc is horizontal. The slope can then be adjusted to allow the material to enter the next stage of screening, thus ensuring sufficient screening and smooth material transfer.

[0023] 2. This utility model, by setting up multi-stage screening chambers, a vibrating motor, and a screen with mesh diameters gradually increasing from left to right, can achieve multi-stage and precise screening of aluminum phosphide while accelerating the screening speed of materials, meeting the screening requirements of different particle sizes, and improving the accuracy and efficiency of screening.

[0024] 3. This utility model achieves automatic material transfer and continuous screening by setting the discharge port, feed port, and particle size screening disc height, eliminating the need for manual intervention, reducing labor intensity, and improving the degree of automation in production. Attached Figure Description

[0025] Appendix Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Appendix Figure 2 This is a cross-sectional structural diagram of the present invention.

[0027] Appendix Figure 3 This is a schematic diagram of the particle size screening disc structure of this utility model.

[0028] The following are the labels in the diagram: 1. Box body; 2. Elastic support column; 3. Feed inlet; 4. Screening chamber; 5. Particle size screening disc; 6. Hinged rotating part; 7. Discharge port; 8. Screen; 9. Electric telescopic rod; 10. Connecting frame; 11. Vibration motor; 12. Guide plate; 13. Feeding funnel; 14. Feeding port. Detailed Implementation

[0029] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0030] like Figure 1-3 The diagram shown is a schematic diagram of the structure of an aluminum phosphide particle size screening device provided in this embodiment.

[0031] In this embodiment, the structure is mainly as follows: Figure 1 As shown, the device includes a housing 1, which is fixedly supported on the ground by elastic support columns 2. The elastic support columns 2 not only support the housing 1 but also provide a relative elastic buffer during vibration. A feed inlet 3 is provided at the top of the housing 1 for feeding materials.

[0032] like Figure 2-3As shown, the interior of the housing 1 has multiple screening chambers 4 arranged from left to right. Each screening chamber 4 is equipped with a particle size screening disc 5. A hinged rotating part 6 is provided at one end of the particle size screening disc 5, allowing it to be mounted on one side wall of the screening chamber 4 via the hinged rotating part 6. This facilitates adjustment of the horizontal inclination of the particle size screening disc 5 by raising and lowering the electric telescopic rod 9. A discharge port 7 is provided at the other end of the particle size screening disc 5. The discharge port 7 is funnel-shaped with inward inclination on both sides to facilitate the accumulation of aluminum phosphide particles. A screen 8 is provided at the bottom of the particle size screening disc 5. An electric telescopic rod 9 is provided at the bottom of one end of the discharge port 7 of the particle size screening disc 5. The extended end is connected to the particle size screening disc 5 by a hinged snap-fit. The bottom of the electric telescopic rod 9 is fixed to the side wall of the screening chamber 4. By controlling the extension and retraction of the electric telescopic rod 9, the particle size screening disc 5 can be adjusted to change its horizontal inclination by raising and lowering the electric telescopic rod 9. This allows aluminum phosphide to be fully screened when the particle size screening disc 5 is horizontal, and then the slope can be adjusted to enter the next stage for further screening. This ensures that aluminum phosphide can be fully screened according to particle size. A connecting frame 10 is provided on the top of the particle size screening disc 5, and a vibration motor 11 is provided on the connecting frame 10 to vibrate the material on the particle size screening disc 5 and accelerate the screening speed of the material.

[0033] The mesh diameter of the screen 8 on the particle size screening disc 5 in the screening chamber 4 increases gradually from left to right with each screening chamber 4, while the mesh diameter of the screen 8 on the same screening chamber 4 is the same, which facilitates the screening of aluminum phosphide particles of different sizes at each stage, realizing multi-stage precise screening of aluminum phosphide. The height of the particle size screening disc 5 in the screening chamber 4 decreases gradually from left to right. The discharge port 7 of the adjacent upper-level particle size screening disc 5 is set above the screen 8 of the adjacent lower-level particle size screening disc 5, which facilitates the screening of aluminum phosphide particles to fall onto the screen 8 of the lower-level particle size screening disc 5 at each stage, realizing automatic material transfer and continuous screening. A guide plate 12 is set at the bottom of the screening chamber 4, and a discharge funnel 13 is set at the bottom of the guide plate 12 for discharging the screened material.

[0034] On the other side wall of the screening chamber 4 corresponding to the discharge port 7, there is a discharge port 14. The discharge ports 7 all extend out of the discharge port 14, so that the aluminum phosphide particles can gather and fall into the next particle size screening disc 5.

[0035] The feed inlet 3 is located above the screen 8 of the first-stage particle size screening disc 5, so that the aluminum phosphide particles in the feed inlet 3 can fall onto the screen 8 of the first-stage particle size screening disc 5 to start the entire screening process.

[0036] The working principle of this embodiment is as follows:

[0037] The housing 1 of this multi-stage aluminum phosphide screening device is fixed to the ground by elastic support columns 2. Aluminum phosphide material is poured into the housing 1 through the feed inlet 3 at the top. The material first falls onto the screen 8 of the particle size screening disc 5 in the first-stage screening chamber 4. The vibration motor 11 is started, causing the particle size screening disc 5 to vibrate. Under the vibration, particles smaller than the mesh diameter of the screen 8 fall through the screen, while particles larger than the mesh diameter remain on the screen. After the material on the first-stage particle size screening disc 5 has been screened for a period of time, the electric telescopic rod 9 is retracted. Since one end of the particle size screening disc 5 is mounted on the side wall of the screening chamber 4 via a hinge rotating part 6, the particle size screening disc 5 tilts under the action of the electric telescopic rod 9. The material remaining on the screen 8 falls through the funnel-shaped discharge port 7 and the discharge port 14 onto the screen 8 of the particle size screening disc 5 in the next-stage screening chamber 4.

[0038] Repeat the above process of vibrating screening and inclined feeding. As the mesh diameter of the screen 8 in the subsequent screening chamber 4 gradually increases, aluminum phosphide of different particle sizes is screened out step by step after the material passes through multiple screening stages. The screened material is discharged from the box body 1 through the guide plate 12 and the feeding funnel 13 at the bottom of the screening chamber 4.

Claims

1. A particle size screening device for aluminum phosphide, comprising a housing, characterized in that, The bottom of the box is fixedly supported on the ground by an elastic support column. The top of the box has a feed inlet. The inside of the box has multiple screening chambers arranged from left to right. Each screening chamber has a particle size screening disc. One end of the particle size screening disc has a hinge rotating part, and the other end has a discharge port. The bottom of the particle size screening disc has a screen. One end of the discharge port of the particle size screening disc has an electric telescopic rod. The top of the particle size screening disc has a connecting frame with a vibration motor. The bottom of the screening chamber has a guide plate, and the bottom of the guide plate has a feeding funnel.

2. The aluminum phosphide particle size screening device according to claim 1, characterized in that, The extended end of the electric telescopic rod is connected to the particle size screening disc by a hinged snap fastener, and the bottom of the electric telescopic rod is fixed to the side wall of the screening chamber.

3. The aluminum phosphide particle size screening device according to claim 1, characterized in that, The mesh diameter of the screen increases progressively from left to right in each screening chamber, while the mesh diameter of the screen in the same screening chamber is the same.

4. The aluminum phosphide particle size screening device according to claim 1, characterized in that, The discharge port is shaped like a funnel, with both sides tilting inward.

5. The aluminum phosphide particle size screening device according to claim 1, characterized in that, A discharge port is provided on one side wall of the screening chamber corresponding to the discharge port, and the discharge ports all extend out of the discharge port.

6. The aluminum phosphide particle size screening device according to claim 1, characterized in that, The height of the particle size screening discs in the screening chamber decreases gradually from left to right, and the discharge port of the adjacent upper-level particle size screening disc is located above the screen of the adjacent lower-level particle size screening disc.

7. The aluminum phosphide particle size screening device according to claim 1, characterized in that, The feed inlet is located above the screen of the first-stage particle size screening disc.

8. The aluminum phosphide particle size screening device according to claim 1, characterized in that, The particle size screening disc is mounted on one side wall of the screening chamber via a hinged rotating component.

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