Air duct structure for winnowing machine

Abstract

The utility model relates to the technical field of air duct structures, and discloses an air duct structure for a winnowing machine, which comprises an air duct main body and a winnowing mechanism, an air inlet is formed in one end part of the air duct main body, and an air outlet is formed in the other end of the air duct main body; the winnowing mechanism comprises an air guide plate, an air pressing plate and a blanking plate; the winnowing mechanism further comprises a feeding port formed in the upper end of the air duct body and a discharging port formed in the lower end of the air duct body. The air duct main body and the winnowing mechanism are arranged, the air inlet and the air outlet are used in cooperation, air can circulate in the air duct main body, small blades doped in materials can be removed through the air guide plate, the air pressing plate and the discharging plate, and therefore the air duct main body, the winnowing mechanism, the air inlet and the air outlet are matched for use. And the screening efficiency of the air duct body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air duct structures, in particular to an air duct structure for an air separator. Background Art

[0002] Air separator is a device that uses the power of airflow to separate light impurities from main materials in raw materials. It is suitable for grading, sorting, dehydrating and dust removal of granular or block materials.

[0003] The air duct structure plays a vital role in the air separator, and its design directly affects the air flow distribution and working efficiency. Therefore, an air duct structure for the air separator is needed.

[0004] The existing air duct structure for air separators has certain disadvantages when in use. When the existing air duct structure for air separators is in use, when small leaves are mixed in the material, it is difficult to remove the small leaves during screening by the air separator, and many screenings are required, which reduces the screening efficiency of the air separator and cannot meet people's needs. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an air duct structure for an air separator, which can solve the technical problems raised in the background technology.

[0007] (II) Technical solution

[0008] The utility model is implemented by the following technical scheme: a duct structure for an air separator, comprising an air duct main body and an air separation mechanism arranged on the air duct main body; wherein, an air inlet is arranged at one end of the air duct main body, and an air outlet corresponding to the air inlet is arranged at the other end of the air duct main body, blades mixed in the material can go out from the air outlet, and a garbage collection device can be placed at the air outlet; the air separation mechanism comprises an air guide plate detachably mounted on the bottom surface of the inner side of the air duct main body close to the air inlet, an air pressure plate obliquely arranged at the middle part of the inner side of the air duct main body and a blanking plate detachably mounted on one side of the air outlet of the air duct main body; the air separation mechanism also comprises a material feed port arranged at the upper end of the air duct main body and a material outlet arranged at the lower end of the air duct main body; the air pressure plate is arranged on the side of the material feed port close to the air inlet.

[0009] Preferably, the upper side surface of the air duct main body is in a horizontal state, and both lower sides of the air duct main body are inclined surfaces.

[0010] Preferably, the lower end of the air guide plate is higher than the lower end of the blanking plate, which can prevent wind from blowing directly to the discharge port. The inclination angle of the blanking plate is greater than the inclination angle of the air guide plate. The inclination angle of the blanking plate is designed after calculation and simulation to ensure that the material can bounce up after falling and impact, but cannot be blown out of the air outlet to avoid loss.

[0011] Preferably, the center line of the air inlet is set on one side of the center line of the air outlet, and the angle between the air pressure plate and the feed port is less than 90 degrees. The wind center blows obliquely toward the blanking plate through the air pressure plate, so that the material boils when it splashes and blows open the blades at the same time. When the material falls back, it passes through the wind center again for secondary air selection.

[0012] Preferably, the height dimension of the air inlet is greater than the height dimension of the air outlet.

[0013] Preferably, the air duct body is provided with a control valve device corresponding to the discharge port.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides an air duct structure for an air separator, which has the following beneficial effects:

[0016] The air duct structure for an air separator can allow air to circulate in the air duct main body through the provided air duct main body and air separation mechanism, and the coordinated use of the air inlet and the air outlet, and can remove small blades mixed in the material through the provided air guide plate, air pressure plate and blanking plate, thereby improving the screening efficiency of the air duct main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial structural diagram of the utility model.

[0018] Figure 2 It is a top view of the air duct main body and the feed port in the utility model.

[0019] In the figure: 1. Air duct main body; 2. Air inlet; 3. Air outlet; 4. Air guide plate; 5. Air pressure plate; 6. Blanking plate; 7. Feed inlet; 8. Discharge outlet; 9. Control valve device. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0021] Example 1: Please refer to Figure 1 - Figure 2The present embodiment provides an air duct structure for an air separator, comprising an air duct body 1 and an air separation mechanism arranged on the air duct body 1; wherein, an air inlet 2 is arranged at one end of the air duct body 1, and an air outlet 3 corresponding to the air inlet 2 is arranged at the other end of the air duct body 1, an air inlet device may be arranged at the air inlet 2, blades mixed in the material may go out from the air outlet 3, and a garbage collection device may be placed at the air outlet 3; the air separation mechanism comprises an air guide plate 4 detachably mounted on the inner bottom surface of the air duct body 1 close to the air inlet 2, and an air guide plate 4 obliquely arranged in the air duct body 1 The air pressure plate 5 in the middle of the side and the blanking plate 6 detachably installed on one side of the air outlet 3 of the air duct main body 1; the air selection mechanism also includes a feed port 7 arranged at the upper end of the air duct main body 1 and a discharge port 8 arranged at the lower end of the air duct main body 1; the air pressure plate 5 is arranged on the side of the feed port 7 close to the air inlet 2, and the blanking material is spread out, and the upper part of the air pressure plate 5 is used to block the material, and the impact force is used to splash onto the blanking plate 6. After the second impact, the material is basically splashed and flew around, and with the strong forward wind, the material can be boiled, and the blades fly out in the direction of the wind and enter the garbage collection device.

[0022] The upper side surface of the air duct main body 1 is in a horizontal plane state, and the lower side surfaces of the air duct main body 1 are both inclined surfaces.

[0023] The lower end of the air guide plate 4 is higher than the lower end of the blanking plate 6, which can prevent wind from blowing directly to the discharge port 8. The inclination angle of the blanking plate 6 is greater than the inclination angle of the air guide plate 4. The inclination angle of the blanking plate 6 is an inclination angle designed after calculation and simulation, which ensures that the material can bounce up after falling and impact, but cannot be blown out of the air outlet 3 to avoid loss.

[0024] The center line of the air inlet 2 is set on one side of the center line of the air outlet 3, and the angle between the air pressure plate 5 and the feed port 7 is less than 90 degrees. The wind center blows obliquely toward the blanking plate 6 through the air pressure plate 5, so that the material boils when it splashes and blows open the blades at the same time. When the material falls back, it passes through the wind center again for secondary air selection.

[0025] The height dimension of the air inlet 2 is greater than the height dimension of the air outlet 3 .

[0026] A control valve device 9 corresponding to the discharge port 8 is arranged on the air duct body 1 .

[0027] When the air duct structure for the air separator is in use, the air inlet device provides strong forward wind to the interior of the air duct body 1 through the air inlet 2. The material enters the interior of the air duct body 1 from the feed port 7 and contacts the air pressure plate 5, so that the material is spread out, and the upper surface of the air pressure plate 5 is used to block the material, and the impact force is used to splash onto the blanking plate 6. After the second impact, the material basically flies around, and the strong forward wind can make the material boil. The blade material enters the garbage collection device through the air outlet 3 along the wind, and the material is discharged from the interior of the air duct body 1 through the discharge port 8.

[0028] The air duct structure for an air separator can allow air to circulate in the air duct main body 1 through the arrangement of the air duct main body 1 and the air separation mechanism, and the coordinated use of the air inlet 2 and the air outlet 3. The small leaves mixed in the material can be removed and discharged from the discharge port 8 through the arrangement of the air guide plate 4, the air pressure plate 5 and the blanking plate 6, thereby improving the screening efficiency of the air duct main body 1.

[0029] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An air duct structure for an air separator, characterized in that: include: An air duct body (1) and an air selection mechanism arranged on the air duct body (1); Wherein, one end of the air duct body (1) is provided with an air inlet (2), and the other end of the air duct body (1) is provided with an air outlet (3) corresponding to the air inlet (2); The air selection mechanism comprises an air guide plate (4) detachably mounted on the inner bottom surface of the air duct body (1) close to the air inlet (2), an air pressure plate (5) obliquely arranged in the middle of the inner side of the air duct body (1), and a blanking plate (6) detachably mounted on the side of the air outlet (3) of the air duct body (1); The air selection mechanism further comprises a material inlet (7) arranged at the upper end of the air duct body (1) and a material outlet (8) arranged at the lower end of the air duct body (1); The air pressure plate (5) is arranged on a side of the feed inlet (7) close to the air inlet (2).

2. The air duct structure for an air separator according to claim 1, characterized in that: The upper side surface of the air duct main body (1) is in a horizontal plane state, and the lower side surfaces of the air duct main body (1) are both inclined surfaces.

3. The air duct structure for an air separator according to claim 1, characterized in that: The position of the lower end of the air guide plate (4) is higher than the position of the lower end of the blanking plate (6), and the inclination angle of the blanking plate (6) is greater than the inclination angle of the air guide plate (4).

4. The air duct structure for an air separator according to claim 1, characterized in that: The center line of the air inlet (2) is arranged on one side of the center line of the air outlet (3), and the angle between the air pressure plate (5) and the feed port (7) is less than 90 degrees.

5. The air duct structure for an air separator according to claim 1, characterized in that: The height dimension of the air inlet (2) is greater than the height dimension of the air outlet (3).

6. The air duct structure for an air separator according to claim 1, characterized in that: The air duct body (1) is provided with a control valve device (9) corresponding to the discharge port (8).

Images