Ultrasonic air flow screen

Abstract

The present invention discloses an ultrasonic airflow screen, comprising a body, a feed tray, a screen, an ultrasonic mechanism, a negative pressure mechanism and a material recovery mechanism, wherein the upper end of the body is open and has a cavity inside, the feed tray is arranged at the upper end of the body, the feed tray is provided with a feed port and a blowing mechanism, the screen is arranged at the upper end of the feed tray, and a cover is also arranged on the top of the screen, the ultrasonic mechanism comprises an ultrasonic generator and an ultrasonic conduction ring connected to one end of the ultrasonic generator and arranged on the screen, the negative pressure mechanism comprises a vacuum fan arranged in the body cavity, the material recovery mechanism comprises a separator arranged outside the body, one end of the vacuum fan is connected to the upper end of the separator through a pipeline, and the other end is connected to the air outlet on the side wall of the body, one side of the separator is connected to the feed port through a pipeline, and a discharge port is arranged at the bottom of the separator. The present invention screens materials through ultrasonic waves, combines blowing with blowing blades and negative pressure feeding, can effectively avoid material agglomeration and can screen quickly.

Description

Technical Field

[0001] The invention belongs to a screening instrument, and in particular relates to an ultrasonic airflow screen. Background Art

[0002] Airflow sieving instruments are mainly used for screening materials to facilitate particle size analysis of materials. Since some materials are easily agglomerated due to factors such as static electricity, how to effectively and quickly screen materials is the main technical problem currently being solved. In addition, existing airflow sieving instruments are equipped with independent industrial vacuum cleaners, which are large in size and cannot be integrated with the sieving instrument body. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an ultrasonic airflow screen which adopts ultrasonic and vacuum technology to screen materials quickly and accurately.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An ultrasonic airflow screen comprises a body, a feed tray, a screen, an ultrasonic mechanism, a negative pressure mechanism and a material recovery mechanism. The upper end of the body is open and has a cavity inside. The feed tray is arranged at the upper end of the body, and a feed port and a blowing mechanism are arranged on the feed tray. The screen is arranged at the upper end of the feed tray, and a cover is also arranged on the top of the screen. The ultrasonic mechanism comprises an ultrasonic generator and an ultrasonic conduction ring connected to one end of the ultrasonic generator and arranged on the frame of the screen. The negative pressure mechanism comprises a vacuum fan arranged in the body cavity. The material recovery mechanism comprises a separator arranged outside the body, one end of the vacuum fan is connected to the upper end of the separator through a pipeline, and the other end is connected to the air outlet on the side wall of the body. One side of the separator is connected to the feed port through a pipeline, and a discharge port is arranged at the bottom of the separator. The blowing mechanism comprises a hollow shaft whose bottom is connected to the cavity and is connected to the feed tray through a bearing, and a blowing blade arranged on the upper surface of the feed tray and one end of which is connected to the top of the hollow shaft. A blowing groove connected to the hollow shaft and having an inclined angle is arranged in the blowing blade.

[0006] The blowing blades are arranged along the radial direction of the unloading tray, and the blowing grooves are opened along the length direction of the blowing blades.

[0007] The negative pressure mechanism also includes a pipeline filter, which is arranged outside the body and connected to the pipeline between the vacuum fan and the separator.

[0008] A material receiving bottle is arranged at the bottom of the discharge port.

[0009] The separator is a conical cyclone separator.

[0010] The ultrasonic airflow screen of the present invention has the following advantages:

[0011] 1. The material can be screened quickly and effectively by using ultrasound and combining it with negative pressure feeding.

[0012] 2. Through the vacuuming of the negative pressure mechanism, the gas in the cavity is blown upward from the blowing mechanism to float the material on the screen, which can effectively avoid material agglomeration and is conducive to the rapid and accurate screening of the material.

[0013] 3. The blowing blades adopt inclined blowing grooves. When the air flow passes through the blowing grooves, a component force will be generated to drive the blades to rotate, thereby driving the blowing blades to rotate, so that there is no dead angle for blowing. Blowing and stirring the air flow can make the screening effect better.

[0014] 4. The negative pressure mechanism is arranged inside the machine body and is integrated with the screening machine body into an integral structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] Figure 1 It is a schematic diagram of the structure of the ultrasonic airflow screen of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the ultrasonic mechanism of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure inside the cavity of the present invention;

[0019] Figure 4 It is a cross-sectional view of the blowing mechanism of the present invention. DETAILED DESCRIPTION

[0020] The ultrasonic airflow screen of the present invention is as follows Figure 1-2 As shown, it mainly includes a body 1, a feed tray 2, a screen 3, an ultrasonic mechanism, a negative pressure mechanism and a material recovery mechanism. The upper end of the body 1 is open and has a cavity inside. The front of the body 1 is also provided with a control panel 4, and the back is also provided with a power socket and a power switch 5. The feed tray 2 is arranged on the upper open end of the body 1. The feed tray 2 is provided with a feed port 12 and a blowing mechanism. The screen 3 is arranged on the upper end of the feed tray 2, including a frame adapted to the feed tray 2 and a filter arranged on the frame. The filter can generally adopt specifications such as 200 meshes according to screening needs. A cover 6 is also provided on the top of the screen 3. After the cover 6 is covered, the material in the feed tray 2 can be enclosed therein; the ultrasonic mechanism includes an ultrasonic generator 7 and an ultrasonic conduction ring 8 connected to one end of the ultrasonic generator 7 and clamped on the frame of the screen 3 by bolts. The ultrasonic generator 7 generates ultrasonic waves and drives the screen 3 to perform ultrasonic vibration, so that the material on the screen 3 can be quickly screened; combined with Figure 3As shown, the negative pressure mechanism includes a vacuum fan 9 arranged in the cavity of the body 1, and the material recovery mechanism includes a separator 10 arranged outside the body 1. One end of the vacuum fan 9 is connected to the upper end of the separator 10 through a pipeline, and the other end is connected to the air outlet 11 arranged on the side wall of the body 1. The separator 10 can be a conical cyclone separator, one side of which is connected to the discharge port 12 through a pipeline. The separator 10 is provided with a discharge port at the bottom, and the discharge port is connected to a receiving bottle 13 for collecting materials. When the vacuum fan 9 is started, the material falling into the discharge tray 2 after ultrasonic vibration screening is sucked by negative pressure through the discharge port 12. After entering the separator 10, the material is decelerated and separated, and enters the receiving bottle 13 below, while the gas is discharged from the air outlet 11 through the pipeline through the vacuum fan 9.

[0021] Please combine Figure 4 As shown, the blowing mechanism includes a hollow shaft 14 whose bottom is connected to the cavity and is connected to the center of the lower material tray 2 through a bearing 15, and a blowing blade 16 which is arranged on the upper surface of the lower material tray 2 along the radial direction of the lower material tray 2 and one end of which is connected to the top of the hollow shaft 14. The blowing blade 16 is provided with a blowing groove 17 which is connected to the hollow shaft 14 and has an inclined angle along its length direction. When the vacuum fan 9 draws a vacuum, the gas in the cavity is extracted through the hollow shaft 14 and the blowing blade 16, and is blown upward from the blowing groove 17. In this way, the blowing groove 17 with an inclined angle can not only push the blowing blade 16 to rotate around the hollow shaft 14, but also blow the material on the screen 3 upward to float it, so that it is not easy to agglomerate.

[0022] In addition, the negative pressure mechanism also includes a pipe filter 18, which is arranged outside the body 1 and connected to the pipe between the vacuum fan 9 and the separator 10 to filter dust from the inhaled gas. The pipe filter 18 can adopt a replaceable filter element structure to facilitate regular replacement of the filter element.

[0023] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. An ultrasonic airflow screen, comprising a body, a feed tray, a screen, an ultrasonic mechanism, a negative pressure mechanism and a material recovery mechanism, wherein the upper end of the body is open and has a cavity inside, the feed tray is arranged at the upper end of the body, the feed tray is provided with a feed port, the screen is arranged at the upper end of the feed tray, and a cover is also provided on the top of the screen, the ultrasonic mechanism comprises an ultrasonic generator and an ultrasonic conduction ring connected to one end of the ultrasonic generator and arranged on the frame of the screen, the material recovery mechanism comprises a separator arranged outside the body, and a discharge port is provided at the bottom of the separator, and the characteristics are: A blowing mechanism is also provided on the discharge tray. The negative pressure mechanism includes a vacuum fan arranged in the cavity of the machine body. One end of the vacuum fan is connected to the upper end of the separator through a pipeline, and the other end is connected to the air outlet on the side wall of the machine body. One side of the separator is connected to the discharge port through a pipeline. The blowing mechanism includes a hollow shaft whose bottom is connected to the cavity and connected to the discharge tray through a bearing, and a blowing blade which is arranged on the upper surface of the discharge tray and connected to the top of the hollow shaft at one end. A blowing groove which is connected to the hollow shaft and has an inclined angle is provided in the blowing blade. When the vacuum fan draws a vacuum, the gas in the cavity is extracted through the hollow shaft and the blowing blade, and blown upward from the blowing groove. The blowing groove at the inclined angle pushes the blowing blade to rotate around the hollow shaft and blows the material on the screen upward.

2. The ultrasonic airflow screen according to claim 1, characterized in that: The blowing blades are arranged along the radial direction of the unloading tray, and the blowing grooves are opened along the length direction of the blowing blades.

3. The ultrasonic airflow screen according to claim 1, characterized in that: The negative pressure mechanism also includes a pipeline filter, which is arranged outside the body and connected to the pipeline between the vacuum fan and the separator.

4. The ultrasonic airflow screen according to claim 1, characterized in that: A material receiving bottle is arranged at the bottom of the discharge port.

5. The ultrasonic airflow screen according to claim 1, characterized in that: The separator is a conical cyclone separator.

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