A gas vibrating particle sizing device

Abstract

The utility model belongs to the technical field of screening device, and relates to a granule screening device of gas vibration, its characterized in be including the shell of inverted conical, fixed screen and adjustable rotary screen are sequentially arranged from top to bottom in the shell, fixed screen and adjustable rotary screen parallelly arranged and with the shell transverse section present certain angle of inclusion, the outside of shell is equipped with gas vibrator, gear transmission case and slag discharge port, and the lowest point of slag discharge port is with adjustable rotary screen in the same plane, the lower part of shell is equipped with the discharge gate. It can be used for the screening of small particles and large particles or particles and foreign matters, and is especially suitable for the transformation of smaller space or no additional equipment space, and can realize the continuous material screening by using the original discharge hopper and other positions, and can control the particle size according to the adjustment of screen position, and does not need to use electricity, and has the advantages of low transformation cost, simple and fast, etc.

Description

Technical Field

[0001] This invention belongs to the technical field of sieving devices, specifically relating to a gas vibration particle sieving device. Background Technology

[0002] Screening devices are widely used in the chemical production field, especially for materials containing particles, which almost all require screening. For some production facilities with a relatively spacious layout, additional screening equipment, conveying equipment, and pipelines are required. However, for production facilities with a more compact layout, the existing screening equipment on the market cannot achieve screening within its limited space. In addition, the particles may be damaged during transportation. Therefore, there are certain drawbacks in terms of equipment and operating costs as well as finished product quality. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems by proposing a gas vibration particle screening device for screening small particles and large particles or particles and foreign matter in industrial and fine chemical production processes. It is particularly suitable for retrofitting in areas with limited space or no additional equipment space. It can utilize existing hoppers and other locations to achieve continuous material screening, and can control the particle size by adjusting the screen position. It requires no electricity and has the advantages of low retrofitting cost, simplicity, and speed.

[0004] The main technical solution of this utility model is as follows: a gas-vibrating particle screening device, characterized in that it includes an inverted conical shell, inside which a fixed screen and an adjustable rotating screen are arranged sequentially from top to bottom, the fixed screen and the adjustable rotating screen are arranged parallel to each other and at a certain angle to the cross section of the shell; a gas vibrator, a gear transmission box and a slag discharge port are provided on the outside of the shell, the lowest point of the slag discharge port is on the same plane as the adjustable rotating screen; a feed port is provided at the bottom of the shell.

[0005] Furthermore, the fixed screen is fixed to the housing, and the adjustable rotating screen is connected to the fixed screen via a central shaft. The edge of the adjustable rotating screen has a toothed structure, meshing with the internal gear of the gear transmission box. The gear transmission box is equipped with an adjustment knob for adjusting the rotation of the adjustable rotating screen and a locking screw. The adjustable rotating screen can be rotated clockwise or counterclockwise by adjusting the knob, and the gear position is locked by the locking screw to prevent the gear from rotating during vibration.

[0006] Furthermore, one half of the fixed screen and the adjustable rotating screen are regularly arranged screen holes, and the other half is a smooth flat plate; the center of the screen hole of the fixed screen and the center of the screen hole of the adjustable rotating screen are the same point on the vertical projection, and the screen hole diameter of the fixed screen is larger than that of the adjustable rotating screen.

[0007] More preferably, the aperture of the adjustable rotating screen is less than or equal to 5 mm.

[0008] More preferably, the fixed screen is provided with guide plates, with the two side guide plates and the middle guide plate forming a 45° angle, for uniformly distributing materials and dividing the fixed screen into 4 feeding zones.

[0009] More preferably, the thickness of both the fixed screen and the adjustable rotating screen is 0.5-2.5mm, which can be selected according to the specific gravity of the material, and the material is a perforated stainless steel plate.

[0010] More preferably, the angle between the fixed screen and the adjustable rotating screen and the cross-section of the shell is 1-45°, which can be determined according to the material flowability and feed rate to ensure that the material achieves a good flow effect.

[0011] More preferably, the gas vibrator is provided with an air inlet and an air outlet, and uses compressed air to achieve vibration.

[0012] Furthermore, the discharge port has a quick-connect structure, which enables the screening device to be installed and disassembled quickly.

[0013] Furthermore, the housing is a conventional equipment hopper, which can be used interchangeably with the conventional equipment hopper without adding extra equipment space.

[0014] The shell of this utility model can be designed with different sizes according to the upstream and downstream equipment connected; the material can be selected from organic glass or stainless steel according to the actual material feeding situation. When the material temperature is ≤80℃, organic glass is preferred, which can make the material feeding visible and clearly observe the feeding situation.

[0015] This utility model relates to a gas-vibrating particle screening device. Material enters from top to bottom above a fixed screen. Through the vibration of the gas vibrator, the material passes through the screen holes of both the fixed and adjustable rotating screens along a guide plate. Material with a diameter larger than the screen hole diameter is discharged through the slag discharge port, while material with a diameter smaller than the screen hole diameter enters the next process through the feed port. Specifically, if the upstream equipment malfunctions and no formed particles are produced, the position of the screen holes in the adjustable rotating screen can be controlled by adjusting the knob to completely close the screen holes, allowing the material to be discharged from the slag discharge port.

[0016] This utility model device does not require electricity and can achieve material screening using only compressed air. It is particularly suitable for partial screening modification of molding equipment, does not occupy extra space, and does not add physical equipment. It has great application prospects in practical applications. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the gas vibration particle screening device according to an embodiment of the present invention.

[0018] In the figure, 1-shell, 2-adjustable rotating screen, 3-fixed screen, 4-gas vibrator, 5-air inlet, 6-exhaust port, 7-feeding port, 8-slag discharge port, 9-gear transmission box, 10-adjusting knob, 11-guide plate. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the embodiments and accompanying drawings. Example

[0020] Reference Appendix: A gas vibration particle screening device Figure 1 It mainly includes an inverted conical shell 1. Inside the shell 1, a fixed screen 3 and an adjustable rotating screen 2 are arranged sequentially from top to bottom. The fixed screen 3 and the adjustable rotating screen 2 are arranged parallel to each other and form a certain angle with the cross section of the shell 1. A gas vibrator 4, a gear transmission box 9 and a slag discharge port 8 are provided on the outside of the shell 1. The lowest point of the slag discharge port 8 is on the same plane as the adjustable rotating screen 2. A feed port 7 is provided at the bottom of the shell 1.

[0021] In this embodiment, the fixed screen 3 is fixed to the housing 1, and the adjustable rotating screen 2 is connected to the fixed screen 3 via a central shaft. The edge of the adjustable rotating screen 2 has a toothed structure, which meshes with the internal gear of the gear transmission box 9. The gear transmission box 9 is equipped with an adjustment knob 10 for adjusting the rotation of the adjustable rotating screen and a locking screw. The adjustable rotating screen 2 can be rotated clockwise or counterclockwise by adjusting the knob 10, and the gear position is locked by the locking screw to prevent the gear from rotating during vibration.

[0022] In this embodiment, both the fixed screen 3 and the adjustable rotating screen 2 are stainless steel perforated plates, one half of which has regularly arranged screen holes, and the other half is a smooth flat plate. The center of the screen holes of the fixed screen 3 and the center of the screen holes of the adjustable rotating screen 2 are the same point on the vertical projection, and the screen hole diameter of the fixed screen 3 is larger than that of the adjustable rotating screen 2. The screen hole diameter can be determined according to the material being screened, and generally the screen hole diameter of the adjustable rotating screen is set to be less than or equal to 5mm.

[0023] In this embodiment, the fixed screen 3 is provided with a guide plate 11, with the two side guide plates and the middle guide plate forming a 45° angle, which is used to evenly distribute the material and divide the fixed screen into 4 feeding zones.

[0024] In the embodiments, the thickness of the fixed screen and the adjustable rotating screen can be selected according to the specific gravity of the material, generally 0.5-2.5mm.

[0025] In this embodiment, the angle between the fixed screen 3 and the adjustable rotating screen 2 and the cross section of the shell 1 can be determined according to the material flowability and feed rate to ensure that the material achieves a good flow effect, generally between 1-45°.

[0026] In this embodiment, the gas vibrator 4 is provided with an air inlet 5 and an exhaust outlet 6, and uses compressed air to achieve vibration.

[0027] In this embodiment, the discharge port 7 is a quick-connect structure, which enables the screening device to be installed and disassembled quickly.

[0028] The housing 1 of the embodiment can be designed with different sizes according to the upstream and downstream equipment connected; the material can be selected from organic glass or stainless steel according to the actual material feeding situation. When the material temperature is ≤80℃, organic glass is preferred, which can make the material feeding visible and clearly observe the material feeding situation.

[0029] Application examples

[0030] Quick connection is achieved with the downstream silo channel via quick interface 7. Adjusting knob 10 controls the alignment of the screen holes of the adjustable rotating screen 2 with those of the fixed screen 3, and tightening the locking bolts. The screen inclination angle is controlled between 5-10°, and the lowest point of the screen should be at the slag discharge port 8. 0.4 MPa compressed air is introduced, and the gas vibrator 4 is turned on, controlling the vibration frequency to 30,000-45,000 times / minute. The upstream equipment discharge channel is opened, and the material enters the screening device from top to bottom. The material first falls on the guide plate 11 of the fixed screen 3, and the guide plate 11 distributes the material evenly. Then, under the action of vibration, the material passes through the screen holes of the fixed screen 3 and the adjustable rotating screen 2 along the guide plate 11 to achieve screening. Material larger than the screen hole diameter will be automatically discharged along the slag discharge port 8 with the action of vibration, and material smaller than the screen hole diameter will enter the next process from the discharge port 7. During the process, the particle size can be controlled by adjusting the overlap of the two screen openings using knob 10. When the upper and lower screen openings overlap, the screen opening diameter is at its maximum. If a fault occurs upstream and the particles do not meet the requirements, all screen openings can be closed, and the material will be discharged from the slag discharge port 8 until the material meets the feeding requirements. When stopping feeding, simply turn off the gas vibrator.

[0031] The embodiment allows for adjustment of the feed aperture according to the actual material conditions, enabling rapid switching between different particle sizes. For materials with poor flowability, the screening speed can be controlled by appropriately increasing the screen inclination angle and vibrating air volume, and vice versa. Furthermore, this device does not occupy additional space, making it particularly suitable for partial on-site equipment modifications. For equipment with a feed hopper, rapid material screening can be achieved simply by modifying the feed hopper. Moreover, it consumes no electricity, resulting in low modification costs and a more environmentally friendly design.

[0032] This device requires no electricity and can screen materials using only compressed air. It is particularly suitable for partial screening modifications of molding equipment. It does not occupy extra space or add physical equipment, making it a practical device with extremely low modification costs. Therefore, the addition of automatic control and detection instruments to this design should fall within the scope of protection of this application.

Claims

1. A gas vibration particle screening device, characterized in that... It includes an inverted conical shell, inside which a fixed screen and an adjustable rotating screen are arranged sequentially from top to bottom. The fixed screen and the adjustable rotating screen are arranged parallel to each other and at a certain angle to the cross-section of the shell. A gas vibrator, a gear transmission box and a slag discharge port are provided on the outside of the shell. The lowest point of the slag discharge port is on the same plane as the adjustable rotating screen. A material discharge port is provided at the bottom of the shell.

2. The gas vibration particle screening device according to claim 1, characterized in that... The fixed screen is fixed to the housing, and the adjustable rotating screen is connected to the fixed screen through the central shaft; the edge of the adjustable rotating screen has a toothed structure and meshes with the internal gear of the gear transmission box, and the gear transmission box is equipped with an adjustment knob to adjust the rotation of the adjustable rotating screen.

3. The gas vibration particle screening device according to claim 1 or 2, characterized in that... The fixed screen and the adjustable rotating screen each have one half with regularly arranged screen holes and the other half with a smooth flat plate. The center of the screen holes of the fixed screen and the center of the screen holes of the adjustable rotating screen are the same point on the vertical projection. The screen hole diameter of the fixed screen is larger than that of the adjustable rotating screen.

4. The gas vibration particle screening device according to claim 3, characterized in that... The adjustable rotating screen has a mesh size of 5 mm or less.

5. The gas vibration particle screening device according to claim 3, characterized in that... The fixed screen is equipped with guide plates, and the two side guide plates form a 45° angle with the middle guide plate.

6. The gas vibration particle screening device according to claim 3, characterized in that, The thickness of both the fixed screen and the adjustable rotating screen is 0.5-2.5 mm.

7. The gas vibration particle screening device according to claim 3, characterized in that... The angle between the fixed screen and the adjustable rotating screen and the cross section of the shell is 1-45°.

8. The gas vibration particle screening device according to claim 1, characterized in that... The gas vibrator is equipped with an air inlet and an air outlet.

9. The gas vibration particle screening device according to claim 1, characterized in that... The feeding port has a quick-connect structure.

10. The gas vibration particle screening device according to claim 1, characterized in that... The casing is the feeding hopper of a traditional device.

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