Wind direction adjusting device of winnowing machine

Abstract

The utility model relates to the technical field of winnowing machines, in particular to a wind direction adjusting device for a winnowing machine, which comprises a fan arranged at a feeding end, an air inlet duct is arranged at an output end of the fan, a shell used for collecting materials is arranged at an outlet of the air inlet duct, and an air return pipe is arranged on the side wall of the shell. The other end of the air return pipe communicates with an air inlet of the draught fan, and an air baffle used for changing the air direction is arranged on the inner wall of the shell, so that the garbage treatment effect is greatly improved, sorted garbage can be rapidly gathered on the discharging conveying belt, regular collection is achieved, and the use effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of air classifier technology, and specifically to an air direction adjustment device used in an air classifier. Background Technology

[0002] While modern science and technology continue to advance, the development of technologies for the treatment and reuse of municipal solid waste lags behind. This not only hinders the development of environmentally friendly cities but has also become a primary issue in improving people's living environment. Currently, the main methods for treating municipal solid waste are landfill and incineration. Landfilling not only occupies a large area of ​​land but also pollutes groundwater, and plastics buried underground cannot degrade for a long time. While incineration significantly reduces the volume of waste, it is costly and, during incineration, plastics in the waste produce harmful gases, leading to air pollution.

[0003] In response to the above phenomena, waste sorting and resource utilization has become an effective way to reduce waste. Through waste sorting, the materials in waste can be utilized as resources, which can effectively reduce the pressure of waste on the environment. In the waste sorting system, the air separator is one of the most important waste sorting mechanical devices. In the existing air separator, lighter waste is blown up. In order to facilitate collection, a shell with a certain space is set at the back. However, due to the large air volume during air separation, the waste cannot be collected regularly inside the shell. Therefore, this technical solution is proposed to improve it. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing air classifiers, which have poor collection effects due to the lack of air direction guidance during sorting, and to provide an air direction adjustment device for air classifiers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wind direction adjustment device for an air classifier, comprising a fan installed at the feeding end, an air inlet duct installed at the output end of the fan, a housing for collecting materials installed at the outlet of the air inlet duct, a return air pipe installed on the side wall of the housing, the other end of the return air pipe being connected to the air inlet of the fan, and a baffle plate for changing the wind direction installed on the inner wall of the housing.

[0006] Furthermore, a return air chamber is provided on the upper part of the outer shell, the air inlet of the return air chamber is located at the rear of the outer shell, and the return air pipe is connected to the return air chamber.

[0007] Furthermore, the air inlet of the return air chamber is equipped with an air regulating plate for controlling the opening degree.

[0008] Furthermore, the wind baffle is disposed on the bottom surface of the return air chamber, and multiple wind baffles are disposed along the length direction of the outer shell and along the width direction of the return air chamber.

[0009] Furthermore, the upper part of the wind deflector is hinged via a pivot.

[0010] Furthermore, a counterweight bar is provided at the bottom of the wind deflector.

[0011] The beneficial effects of this utility model embodiment are as follows: a return air chamber is provided on the upper part of the outer shell, the air inlet of the return air chamber is located at the rear of the outer shell, the air inlet of the return air chamber is provided with a wind regulating plate for controlling the opening, the return air pipe is connected to the return air chamber, and a wind baffle is provided on the lower surface of the return air chamber. The arrangement of multiple wind baffles causes the airflow entering the interior of the outer shell to gradually slow down under the action of the wind baffles, so that the lightweight waste gradually falls onto the discharge conveyor belt when it reaches the rear of the outer shell, which greatly improves the collection effect. By adjusting the wind direction of the wind baffles, the waste treatment effect is greatly improved, so that the sorted waste can quickly gather on the discharge conveyor belt, realize regular collection, and improve the use effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the internal structure of this utility model from another angle;

[0015] In the diagram: 1. Fan; 101. Air inlet duct; 2. Shell; 201. Material feeding plate; 202. Adjusting plate; 203. Support rod; 204. Adjusting rod; 205. Handwheel; 206. Return air chamber; 207. Baffle plate; 208. Air inlet; 209. Return air duct; 3. Feed conveyor belt; 4. Discharge conveyor belt; 5. Separating roller. Detailed Implementation

[0016] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] See Figures 1 to 3This utility model discloses an air separation machine air direction adjustment device, which includes a feeding conveyor belt 3, an air inlet duct 101, a fan 1, a material sorting plate 201, an adjustment device, etc. A feeding conveyor belt 3 is provided on the left side for continuously feeding the domestic waste to be sorted into the air separation area. An air inlet duct 101 is provided below the feeding conveyor belt 3. The air inlet duct 101 is connected to the fan 1. Its air outlet is directly facing the conveying direction of the feeding conveyor belt 3, and the air outlet is inclined upward. After the garbage on the feeding conveyor belt 3 is lifted, the air blown out by the air inlet duct 101 blows the light garbage upward. The heavier garbage is blown a shorter distance and can only fall downward. By adjusting the wind force of the fan 1, the force of the airflow on the garbage can be controlled to achieve preliminary air separation.

[0018] Above the feeding conveyor belt 3, a sorting plate 201 is installed. Its function is to further sort and disperse the waste to facilitate the effective action of the wind. The tail of the sorting plate 201 is designed with an adjustment device, which includes a horizontally arranged support rod 203. An adjustable rod 204 is installed in the middle of the support rod 203. The adjustable rod 204 passes through the support rod 203 and is hinged to the sorting plate 201 below, so that the angle of the sorting plate 201 can be flexibly adjusted as needed. An adjusting handwheel 205 is installed on the upper part of the adjusting rod 204. The operator can easily adjust the height and tilt angle of the sorting plate 201 by rotating the handwheel 205 to adapt to the needs of different types and volumes of waste processing. This helps to guide the light waste that has been initially separated by the wind to slide down in a specific direction, reducing the mixing with heavy waste. To facilitate adjustment, the material feeding plate 201 is designed as an L-shaped plate, with its tail hinged to the adjusting rod 204. This increases the adjustment angle of the material feeding plate 201 and improves the adjustment effect. A pivot is also designed at the tail of the material feeding plate 201, which provides support when adjusting the angle of the material feeding plate 201, ensuring optimal performance. An adjusting plate 202 is also located at the tail of the material feeding plate 201, fixedly mounted to it. When the angle of the material feeding plate 201 is adjusted, the angle of the adjusting plate 202 also changes accordingly. The presence of the adjusting plate 202... The flow path of the waste has been further optimized, improving the purity of the sorting. The output direction of the adjusting plate 202 is tilted downward, which facilitates the guidance of the separated light waste to the next processing stage. Below the adjusting plate 202, a set of separating rollers 5 is added. The separating rollers 5 are driven by a drive motor to rotate. Their axis is lower than the feeding conveyor belt 3, which can ensure that the waste sliding off the sorting plate 201 can be further sorted and separated by the rotation of the rollers when it comes into contact with the separating rollers 5. In particular, it can effectively achieve physical separation of light impurities that are still attached to heavy waste, ensuring the effect of use.

[0019] A discharge conveyor belt 4 is configured below the separating roller 5 to collect and transport the waste that has undergone air separation and physical sorting. A buffer shell is set on the outside of the discharge conveyor belt 4 to wrap the front of the discharge conveyor belt 4, reducing dust spillage and restricting the movement path of lightweight waste. The design of the discharge conveyor belt 4 not only facilitates the subsequent processing of waste, but also ensures the continuity and automation level of the entire air separation process. The material sorting plate 201 has a simple structure, is easy to operate, and is easy to maintain and upgrade, thus improving the accuracy and efficiency of waste sorting.

[0020] Waste conveyed by the feeding conveyor belt enters the interior of the outer casing 2. The tail of the regulating plate is located below the first baffle plate 207, guiding the lightweight waste and airflow blown out of the air inlet duct into the interior of the outer casing 2. A return air duct is installed on the side wall of the outer casing, and the other end of the return air duct is connected to the air inlet 208 of the blower 1. During use, the airflow blown out of the blower into the interior of the outer casing 2 is drawn back into the blower 1 through the return air duct 209, reducing dust spillage during the process. A return air chamber 206 is installed at the upper part of the outer casing 1, and the air inlet of the return air chamber 206 is located at the tail of the outer casing. The air inlet of the return air chamber 206 is equipped with a regulating plate for controlling the opening. The return air duct 209 and the return air chamber 206 are connected to the air inlet 208 of the blower 1. The return air chamber is connected, and a baffle plate is provided on the lower surface of the return air chamber 206. Multiple baffle plates are provided along the length of the outer shell, and baffle plate 207 is provided along the width of the return air chamber. There are two ways to set the baffle plates. One is a fixed setting. In use, the multiple baffle plates make the airflow entering the outer shell gradually slow down under the action of the baffle plates. This allows light waste to gradually fall onto the discharge conveyor belt when it reaches the rear of the outer shell. The air volume entering the return air chamber is controlled by the air regulating plate to prevent some waste from entering the return air chamber and improve the use effect. The length of the baffle plate can be selected as needed. If necessary, the length of the front part of the rear baffle plate wall can be increased to improve the air volume regulation effect.

[0021] Another method of setting up the wind baffle is to hinge it to the bottom surface of the return air chamber. The upper part of the wind baffle is hinged by a pivot, and a counterweight is set at the bottom of the wind baffle. During use, if some garbage accumulates at the angle between the wind baffle and the bottom of the return air chamber, the hinged wind baffle will deflect backward under the action of wind force, guiding the accumulated garbage downward, which greatly improves the collection effect. By adjusting the wind direction of the wind baffle, the garbage treatment effect is greatly improved, so that the sorted garbage can quickly gather on the discharge conveyor belt, achieving regular collection and improving the utilization effect.

[0022] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0025] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A device for adjusting the direction of air flow in a winnowing machine, comprising a fan arranged at the upper end of the machine, characterized in that: The output end of the fan is provided with an air inlet channel, the outlet of the air inlet channel is provided with a shell for collecting materials, a side wall of the shell is provided with a return air pipe, the other end of the return air pipe is communicated with the air inlet of the fan, and an inner wall of the shell is provided with a baffle for changing the air direction.

2. The air table air direction adjustment device of claim 1, wherein: The upper part of the shell is provided with a return air bin, the air inlet of the return air bin is arranged at the tail of the shell, and the return air pipe is communicated with the return air bin.

3. The air table air direction adjustment device of claim 2, wherein: The air inlet of the return air bin is provided with an air regulating plate for controlling the opening degree.

4. The air table air direction adjustment device of claim 2, wherein: The baffle is arranged on the bottom surface of the return air bin, a plurality of baffles are arranged along the length direction of the shell, and the baffles are arranged along the width direction of the return air bin.

5. The air table air direction adjustment device of claim 2, wherein: The upper part of the baffle is hinged through a rotating shaft.

6. The air table air direction adjustment device of claim 5, wherein: The bottom of the baffle is provided with a counterweight rod.

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