V-shaped static powder concentrator

Abstract

The utility model discloses a V-shaped static powder concentrator. The V-shaped static powder concentrator comprises an air inlet shell, a screening shell and an air outlet shell. The air inlet shell forms an air inlet cavity and is provided with an air inlet and a first air guide opening. One end of the screening shell is connected with the air inlet shell to form a screening cavity, is communicated with the air inlet cavity through a first air guide opening and is provided with a material inlet and a material outlet; the air outlet shell is located on the side, away from the air inlet shell, of the screening shell to form an air outlet cavity which is provided with an air outlet and a second air guide opening, and the screening cavity communicates with the second air guide opening. Wherein the direction from the feeding port to the discharging port is the first direction, the direction from the first air guiding port to the second air guiding port is the second direction, the screening shell is provided with a plurality of first air guiding plates and a plurality of second air guiding plates which are arranged at intervals in the first direction, and in the second direction, the length of the first air guiding plates is smaller than that of the second air guiding plates. According to the V-shaped static powder concentrator, the technical problem that a traditional V-shaped static powder concentrator is low in separation efficiency can be solved by optimizing a wind power adjusting mechanism.

Description

Technical Field

[0001] The utility model relates to the field of cement production, in particular to a V-shaped static powder separator. Background Art

[0002] In modern industrial production processes, particularly in the cement, mining, and other grinding industries, classifiers are key equipment, and their performance directly impacts final product quality and production efficiency. However, in actual applications, low classifier efficiency is often encountered. This not only affects the overall effectiveness of the production line but can also lead to increased energy consumption and waste of resources.

[0003] Existing classifiers, due to improper wind distribution or uneven material dispersion, fail to completely separate fine and coarse powders when processing materials. As a result, some fine powder is not collected promptly and instead returns to the grinding system along with the coarse powder for repeated grinding. This undoubtedly increases the system's energy consumption and reduces production efficiency. Furthermore, deficiencies in the classifier's internal structural design, such as improper guide plate angles and spacing, or airflow channel designs that fail to fully utilize the airflow's kinetic energy, can also affect the classifier's effectiveness. Utility Model Content

[0004] The main purpose of the utility model is to propose a V-shaped static powder classifier, which solves the technical problem of low separation efficiency of traditional V-shaped static powder classifiers by optimizing the wind adjustment mechanism.

[0005] To achieve the above-mentioned purpose, the present invention proposes a V-shaped static powder separator, comprising:

[0006] An air inlet housing defines an air inlet cavity, and has an air inlet communicating with the air inlet cavity and a first air guide port;

[0007] A screening shell, one end of which is connected to the air inlet shell, the screening shell defines a screening cavity, one end of which is connected to the first air guide port, and the screening shell is provided with an inlet and an outlet connected to the screening cavity;

[0008] An air outlet housing is connected to an end of the screening housing facing away from the air inlet housing, the air outlet housing defines an air outlet cavity, and has an air outlet communicating with the air outlet cavity and a second air guide port, the screening cavity communicating with the second air guide port;

[0009] Among them, the direction from the feed port to the discharge port is the first direction, the direction from the first air guide port to the second air guide port is the second direction, the first direction intersects with the second direction, and the screening shell is provided with a plurality of first air guide plates and a plurality of second air guide plates arranged at intervals along the first direction. Along the second direction, the length of the first air guide plate is less than the length of the second air guide plate.

[0010] In some embodiments, each first air guide plate and each second air guide plate together constitute a first plate group and a second plate group. The first plate group and the second plate group are arranged relative to each other along the second direction. The first plate group includes at least one first air guide plate and at least one second air guide plate arranged at intervals along the first direction. The second plate group includes at least one first air guide plate and at least one second air guide plate arranged at intervals along the first direction.

[0011] In some embodiments, along the first direction, the first air guide plates and the second air guide plates in the first plate group are arranged alternately one by one, and the first air guide plates and the second air guide plates in the second plate group are arranged alternately one by one.

[0012] In some embodiments, the first air guide plates in the first plate group and the second air guide plates in the second plate group are arranged one-to-one relative to each other along the second direction; the second air guide plates in the first plate group and the first air guide plates in the second plate group are arranged one-to-one relative to each other along the second direction.

[0013] In some embodiments, the first plate group is located on a side of the screening chamber close to the first air guide port, and the second plate group is located on a side of the screening chamber close to the second air guide port;

[0014] Each first air guide plate in the first plate group is located on a side away from the second air guide port, and each first air guide plate in the second plate group is located on a side away from the first air guide port.

[0015] In some embodiments, the first plate group is located on a side of the screening chamber close to the first air guide port, and the second plate group is located on a side of the screening chamber close to the second air guide port;

[0016] Along the first direction, the first air guide plate and the second air guide plate in the first plate group are both inclined toward the discharge port; in the opposite direction of the first direction, the first air guide plate and the second air guide plate in the second plate group are both inclined toward the discharge port.

[0017] In some embodiments, along the second direction, a length of the first air guide plate is greater than half a length of the second air guide plate.

[0018] In some embodiments, the V-type static powder classifier also includes a first diverter plate, which is arranged in the air inlet housing, one end of the first diverter plate is hinged to the air inlet housing, and the other end extends toward the air inlet. The first diverter plate can rotate relative to the air inlet housing, and the rotation axis direction of the first diverter plate is perpendicular to the axis direction of the air inlet and perpendicular to the first direction.

[0019] In some embodiments, the V-type static powder classifier also includes a second diverter plate, which is arranged in the air inlet housing, one end of the second diverter plate is hinged to the air inlet housing, and the other end extends toward the first air guide port, the second diverter plate can rotate relative to the air inlet housing, and the rotation axis direction of the second diverter plate is perpendicular to the axis direction of the air inlet and perpendicular to the first direction.

[0020] In some embodiments, the end of the first diverter plate facing away from the air inlet is connected to the end of the second diverter plate close to the air inlet.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The design of the first and second air guide plates creates a complex airflow path within the screening chamber, helping to improve particle separation efficiency. The shorter first air guide plate helps guide airflow quickly through the screening area, while the longer second air guide plate better controls the airflow and prevents it from directly impacting the discharge port, thereby improving separation accuracy. By combining the different lengths of the first and second air guide plates, the classifier can maintain high efficiency while reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 This is a three-dimensional schematic diagram of a V-shaped static powder classifier in one embodiment of the present utility model;

[0025] Figure 2 It is a partially enlarged view of the structural schematic diagram of a V-type static powder classifier in another embodiment of the present utility model.

[0026] Description of Figure Numbers:

[0027] Air inlet housing 100;

[0028] Air inlet 110;

[0029] First air guide port 120;

[0030] Screening shell 200;

[0031] Air outlet housing 300;

[0032] Air outlet 310;

[0033] Second air guide port 320;

[0034] First air guide plate 400;

[0035] Second air guide plate 500;

[0036] First diverter plate 600;

[0037] Second diverter plate 700;

[0038] First direction Y; second direction X.

[0039] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0041] Reference Figure 1 In some embodiments, a V-shaped static powder separator includes an air inlet housing 100, a screening housing 200, and an air outlet housing 300. The air inlet housing 100 defines an air inlet cavity and has an air inlet 110 and a first air guide 120 connected to the air inlet cavity. One end of the screening housing 200 is connected to the air inlet housing 100. The screening housing 200 defines a screening cavity, one end of which is connected to the first air guide 120. The screening housing 200 is provided with a feed inlet and a discharge inlet connected to the screening cavity. The air outlet housing 300 is connected to the end of the screening housing 200 facing away from the air inlet housing 100. The air outlet housing 300 defines an air outlet cavity and has an air outlet 310 and a second air guide 320 connected to the air outlet cavity. The screening cavity is connected to the second air guide 320. The direction from the feed port to the discharge port is the first direction Y, and the direction from the first air guide port 120 to the second air guide port 320 is the second direction X. The first direction Y intersects the second direction X. The screening housing 200 is provided with a plurality of first air guide plates 400 and a plurality of second air guide plates 500 arranged at intervals along the first direction Y. Along the second direction X, the length of the first air guide plate 400 is less than the length of the second air guide plate 500.

[0042] The air inlet shell 100 is designed to have an inclined structure with a certain angle. The air inlet 110 is used to introduce external air, and the first air guide 120 guides the air to the screening chamber. After the air enters the air inlet chamber, it is guided by the air inlet shell 100 to form an airflow with a certain flow rate. The airflow enters the screening chamber through the first air guide 120 and mixes with the material, so that the light particles move with the airflow, while the heavy particles settle due to gravity. The internal shape of the screening shell 200 is designed to be V-shaped to facilitate the uniform distribution of materials and the effective separation of the airflow. The design of the air outlet shell 300 also takes into account the smooth discharge of the airflow. Its second air guide 320 is connected to the screening chamber to ensure that the airflow can smoothly carry away the light particles while preventing heavy particles from being carried out. The design of the first air guide plate 400 and the second air guide plate 500 allows the airflow to form a complex flow path in the screening chamber, which helps to improve the separation efficiency of the particles. The first air guide plate 400 is shorter, which helps to guide the airflow to quickly pass through the screening area, while the second air guide plate 500 is longer, which can better control the direction of the airflow and prevent the airflow from directly impacting the discharge port, thereby improving the separation accuracy.

[0043] By combining the different lengths of the first and second air guide plates 400 and 500, the powder separator can reduce energy consumption while maintaining high efficiency. Furthermore, the longer second air guide plate 500 effectively controls the airflow path, preventing material loss caused by airflow directly impacting the discharge port, thereby improving overall separation efficiency.

[0044] It is understood that in some embodiments, the air inlet housing 100 and the screening housing 200 are connected by a tight sealing structure to ensure that the airflow does not leak from the connection and affect the separation effect. The design of the air inlet housing 100 and the air outlet housing 300 takes into account the smooth flow of airflow. The internal surface is smooth and there are no protrusions that hinder the airflow. The V-shaped structure of the screening housing 200 is not only conducive to the uniform distribution of materials, but also facilitates subsequent cleaning and maintenance. The spacing between the first air guide plate 400 and the second air guide plate 500 in the air inlet housing 100 can be changed by adjusting the installation position to adapt to the separation requirements of materials of different particle sizes.

[0045] Furthermore, the material selection for the first and second air guide plates 400, 500 is also crucial; they must possess excellent corrosion and wear resistance to withstand extended operation. To further enhance separation accuracy, baffles can be installed within the screening housing 200. These baffles redirect the airflow, increasing the contact time between the airflow and the material, thereby improving separation efficiency.

[0046] Reference Figure 1In some embodiments, each first air guide plate 400 and each second air guide plate 500 together form a first plate group and a second plate group. The first plate group and the second plate group are arranged opposite each other along the second direction X. The first plate group includes at least one first air guide plate 400 and at least one second air guide plate 500 spaced apart along the first direction Y, and the second plate group includes at least one first air guide plate 400 and at least one second air guide plate 500 spaced apart along the first direction Y. The design of the first and second plate groups creates a complex flow path within the screening chamber, improving the efficiency of separating light particles from heavy particles. The first and second plate groups are located on one side of the screening chamber near the first air guide port 120 and the second air guide port 320, respectively. This layout design allows the airflow entering the screening chamber to be evenly dispersed. The complex path formed by the first and second plate groups effectively separates light and heavy particles. The alternating arrangement of the first and second plate groups causes the airflow to continuously change direction during flow, which helps to improve separation accuracy.

[0047] Reference Figure 1 In some embodiments, the first air guide plates 400 and the second air guide plates 500 in the first plate group and the second plate group of the V-type static powder concentrator are alternately arranged along the first direction Y. The first direction Y refers to the direction from the feed port to the discharge port, and the second direction X refers to the direction from the first air guide port 120 to the second air guide port 320, and the two directions intersect with each other. The first plate group and the second plate group are arranged relative to each other at intervals along the second direction X. The first plate group includes at least one first air guide plate 400 and at least one second air guide plate 500, which are arranged at intervals along the first direction Y; similarly, the second plate group also includes at least one first air guide plate 400 and at least one second air guide plate 500, and these air guide plates are arranged at intervals along the first direction Y.

[0048] The alternating arrangement of the first air guide plate 400 and the second air guide plate 500 causes the airflow to form a complex path within the screening chamber. When the airflow enters the screening chamber from the first air guide port 120, it encounters the alternating arrangement of the first air guide plate 400 and the second air guide plate 500, and the airflow is forced to change direction, causing particles to collide, rotate, and separate in the airflow. The first air guide plate 400 is shorter and the second air guide plate 500 is longer. This design makes the airflow path more tortuous, increasing the chance of contact between the airflow and the particles, thereby improving the separation efficiency. In addition, the staggered air guide plates also help to evenly distribute the airflow, preventing local airflow from being too strong or too weak, resulting in uneven separation.

[0049] It is understandable that the alternating arrangement of the first air guide plates 400 and the second air guide plates 500 in the first plate group and the second plate group allows the airflow to form multiple loops in the screening chamber, increasing the chances of interaction between the airflow and particulate matter. The difference in length between the first air guide plates 400 and the second air guide plates 500 causes the flow characteristics of the airflow to change as it passes through these air guide plates. The shorter first air guide plates 400 help the airflow to pass through quickly, while the longer second air guide plates 500 serve to guide the direction of the airflow. This structural design causes the airflow to change its speed and direction multiple times as it passes through the first plate group and the second plate group, thereby increasing the chances of collision between light and heavy particles and improving separation efficiency.

[0050] Reference Figure 1 In some embodiments, the first air guide plates 400 in the first plate group of the V-type static powder concentrator are arranged opposite each other in a one-to-one correspondence with the second air guide plates 500 in the second plate group along the second direction X; and the second air guide plates 500 in the first plate group are arranged opposite each other in a one-to-one correspondence with the first air guide plates 400 in the second plate group along the second direction X. The first plate group and the second plate group are arranged opposite each other in the second direction X with intervals, forming a series of channels between the two plate groups. After the airflow enters the screening chamber from the first air guide port 120, it must change direction when passing through these channels due to the relative arrangement of the air guide plates, thereby further complicating the airflow path.

[0051] Specifically, the first air guide plate 400 is shorter, and the second air guide plate 500 is longer. The corresponding distribution of the first air guide plate 400 and the second air guide plate 500 causes the airflow passing through the first plate group and the second plate group to change more frequently under the influence of the first air guide plate 400 and the second air guide plate 500. That is, such a design enables the airflow to change its speed and direction multiple times when passing through the first plate group and the second plate group. Due to the complexity of the airflow path, light particles and heavy particles are more easily separated. At the same time, the relative arrangement of the air guide plates also plays a role in evenly distributing the airflow, reducing the problem of excessive or weak local airflow.

[0052] Reference Figure 1 In some embodiments, the first plate group of the V-type static powder concentrator is located on the side of the screening chamber close to the first air guide port 120, while the second plate group is located on the side of the screening chamber close to the second air guide port 320. Each first air guide plate 400 in the first plate group is located away from the second air guide port 320, while each first air guide plate 400 in the second plate group is located away from the first air guide port 120. This layout allows the airflow entering the screening chamber to first pass through the first plate group and then through the second plate group, forming a step-by-step separation effect. The first plate group and the second plate group each include a first air guide plate 400 and a second air guide plate 500 arranged at intervals along the first direction Y, with the first air guide plate 400 being shorter and the second air guide plate 500 being longer.

[0053] The airflow enters the screening chamber from the first air guide port 120 and encounters the first air guide plate 400 and the second air guide plate 500 in the first plate group. Since the first air guide plate 400 is shorter, the airflow will pass through quickly, while the second air guide plate 500 is longer, which can better control the direction of the airflow, so that the airflow gradually advances along the path of the first plate group toward the second plate group. As the airflow advances, the movement trajectory of the particles in the airflow changes, and light particles are more likely to move forward with the airflow, while heavy particles sink due to their greater inertia, thereby achieving the initial separation of the materials. When the airflow reaches the second plate group, since the first air guide plate 400 of the second plate group is away from the first air guide port 120, this further enhances the airflow's carrying capacity for light particles, while heavy particles continue to settle under the action of gravity. In this way, through the synergistic effect of the first plate group and the second plate group, effective separation of particles of different weights is achieved, and separation efficiency is improved.

[0054] It is understandable that in some embodiments, the positions of the first plate group and the second plate group in the screening chamber are arranged so that the airflow entering the screening chamber forms an effective filtering path between the first plate group and the second plate group. The first plate group is close to the side of the first air guide port 120, which means that when the airflow enters from the first air guide port 120, the first thing it contacts is the first plate group, and the particulate matter in the airflow begins to separate under the action of the first plate group. The first air guide plate 400 in the first plate group is shorter, and the second air guide plate 500 is longer. This design makes the airflow more tortuous when passing through the first plate group due to the presence of the second air guide plate 500, which helps the collision and separation of particulate matter. When the airflow reaches the second plate group, since the first air guide plate 400 of the second plate group is away from the first air guide port 120, this further increases the ability of the airflow to carry light particles, while the heavy particles continue to settle, thereby achieving a better separation effect.

[0055] Of course, it is understandable that, referring to Figure 1 and Figure 2 The position of the first air guide plate 400 can be set at any position, that is, the first air guide plate 400 can be set on the side close to the first air guide port 120, or on the side close to the second air guide port 320. The first air guide plate 400 and the second air guide plate 500 can cooperate with each other to affect the air flow channel.

[0056] Reference Figure 1In some embodiments, the first plate group of the V-type static powder concentrator is located on the side of the screening chamber near the first air guide port 120, and the second plate group is located on the side of the screening chamber near the second air guide port 320. The first air guide plate 400 and the second air guide plate 500 in the first plate group are both inclined toward the discharge port, and in the opposite direction of the first direction Y, that is, toward the feed port, the first air guide plate 400 and the second air guide plate 500 in the second plate group are also inclined toward the discharge port. This design allows the airflow to move along the inclined angle when passing through the first plate group and the second plate group, which helps the airflow carry light particles toward the discharge port, while heavy particles settle downward due to their own gravity.

[0057] When the airflow enters the screening chamber from the first air guide port 120, it encounters the inclined first air guide plate 400 and the second air guide plate 500 in the first plate group, and the airflow will be guided toward the discharge port. Since the first air guide plate 400 and the second air guide plate 500 in the first plate group are both inclined toward the discharge port, this makes it easier for light particles to move forward with the airflow as the airflow moves forward, while heavy particles settle downward due to inertia. When the airflow continues to move forward after passing through the first plate group and reaches the second plate group, since the first air guide plate 400 and the second air guide plate 500 in the second plate group are also inclined toward the discharge port, this further enhances the airflow's ability to carry light particles, while heavy particles continue to settle under the action of gravity. In this way, light particles are smoothly carried to the discharge port by the airflow, while heavy particles are effectively separated, thereby improving separation efficiency.

[0058] It is understandable that in some embodiments, the inclined arrangement of the first plate group and the second plate group allows the airflow entering the screening chamber to advance along the inclined angle when passing through the first plate group and the second plate group, which helps the airflow carry light particles toward the discharge port, while the heavy particles settle downward due to their own gravity. The first air guide plate 400 and the second air guide plate 500 in the first plate group are both inclined toward the discharge port, which makes it easier for light particles to advance with the airflow when the airflow passes through the first plate group, while the heavy particles settle downward due to inertia. When the airflow reaches the second plate group, since the first air guide plate 400 and the second air guide plate 500 in the second plate group are also inclined toward the discharge port, this further increases the ability of the airflow to carry light particles, while the heavy particles continue to settle, thereby achieving a better separation effect.

[0059] Reference Figure 1In some embodiments, in the second direction X of the V-shaped static powder concentrator, the length of the first air guide plate 400 is greater than half the length of the second air guide plate 500. This design creates a significant length difference between the first air guide plate 400 and the second air guide plate 500. The first air guide plate 400 is shorter, while the second air guide plate 500 is longer. This length difference allows the first air guide plate 400 to guide the airflow more quickly, while the second air guide plate 500 can better adjust the direction of the airflow, making the airflow path within the screening chamber more complex.

[0060] When the airflow enters the screening chamber from the first air guide 120 and encounters the longer second air guide plate 500, the airflow path is extended, thereby increasing the contact area between the airflow and the material particles, making it easier for light particles to be carried away by the airflow, while heavy particles settle due to gravity. Due to its shorter length, the first air guide plate 400 allows the airflow to pass more quickly, which helps to increase the speed of the airflow and thus enhance the ability of light particles to be carried away. Through the difference in length between the first air guide plate 400 and the second air guide plate 500, the powder separator can effectively separate particles of different densities and improve separation efficiency.

[0061] Reference Figure 1 In some embodiments, a V-shaped static powder separator includes an air inlet housing 100, in which a first diverter plate 600 is disposed. One end of the first diverter plate 600 is hinged to the air inlet housing 100, and the other end extends toward the air inlet 110. The first diverter plate 600 can rotate relative to the air inlet housing 100, with its rotation axis being perpendicular to the axis of the air inlet 110 and perpendicular to the first direction Y. The design of the first diverter plate 600 allows the airflow entering the air inlet housing 100 to be effectively guided and regulated. By rotating the first diverter plate 600, the flow rate and direction of the airflow can be controlled, thereby optimizing the airflow conditions entering the screening chamber.

[0062] When the airflow enters the air inlet housing 100 through the air inlet 110, it encounters the first diverter plate 600. Since the first diverter plate 600 can rotate relative to the air inlet housing 100, its angle can be adjusted as needed to change the direction and flow of the airflow. Through the rotation of the first diverter plate 600, the airflow can be effectively guided to flow in the direction of the first air guide port 120. At the same time, the amount of air entering the screening chamber can be adjusted, so that the airflow is more evenly distributed in the screening chamber, thereby improving the powder selection efficiency. The design of the first diverter plate 600 optimizes the airflow before entering the screening chamber, improves the uniformity and stability of the airflow, and thus improves the working efficiency of the powder selection machine.

[0063] It is understandable that in some embodiments, one end of the first diverter plate 600 provided in the air inlet housing 100 is hinged to the air inlet housing 100 and the other end extends toward the air inlet 110 , and the first diverter plate 600 can rotate relative to the air inlet housing 100 .

[0064] Reference Figure 1 In some embodiments, the V-shaped static powder concentrator further includes a second diverter plate 700. The second diverter plate 700 is disposed within the air inlet housing 100, with one end hinged to the air inlet housing 100 and the other end extending toward the first air guide port 120. The second diverter plate 700 is rotatable relative to the air inlet housing 100, with its rotation axis perpendicular to the axis of the air inlet port 110 and perpendicular to the first direction Y. The combination of the first diverter plate 600 and the second diverter plate 700 effectively guides and regulates the airflow entering the air inlet housing 100.

[0065] During operation, after the airflow enters the air inlet shell 100 from the air inlet 110, it first encounters the first diverter plate 600. The first diverter plate 600 can adjust its angle as needed to change the direction and flow of the airflow. Subsequently, the airflow continues to move forward and encounters the second diverter plate 700. The second diverter plate 700 can also be rotated to change the direction of the airflow so that it flows better toward the first air guide port 120. Through the joint adjustment of the first diverter plate 600 and the second diverter plate 700, the airflow can be evenly distributed in the screening chamber, ensuring the uniformity and stability of the airflow during the screening process, thereby improving the working efficiency of the powder classifier. The design of the second diverter plate 700 further enhances the powder classifier's ability to control the airflow, so that the airflow can be more finely adjusted before entering the screening chamber.

[0066] It is understandable that in some embodiments, the second diverter plate 700 is provided in the air inlet housing 100, one end of which is hinged to the air inlet housing 100, and the other end extends toward the first air guide port 120. The second diverter plate 700 can rotate relative to the air inlet housing 100 so that the airflow entering the air inlet housing 100 can be further guided and adjusted. When the airflow enters the air inlet housing 100 from the air inlet 110, it first contacts the first diverter plate 600. The first diverter plate 600 can adjust its angle as needed to change the direction and flow of the airflow. Then the airflow continues to move forward and encounters the second diverter plate 700. The second diverter plate 700 can also rotate to change the direction of the airflow so that it flows better toward the first air guide port 120. Through the joint adjustment of the first diverter plate 600 and the second diverter plate 700, the airflow can be evenly distributed in the screening chamber, ensuring the uniformity and stability of the airflow during the screening process, thereby improving the working efficiency of the powder classifier. The design of the second diverter plate 700 further enhances the control capability of the powder selector over the airflow, so that the airflow can be more finely regulated before entering the screening chamber, thereby ensuring the optimization of the airflow conditions during the powder selection process.

[0067] Reference Figure 1 In some embodiments, the end of the first diverter plate 600 facing away from the air inlet 110 is connected to the end of the second diverter plate 700 near the air inlet 110. This connection allows the first diverter plate 600 and the second diverter plate 700 to function as a whole to jointly regulate the airflow entering the air inlet housing 100. The linkage between the first diverter plate 600 and the second diverter plate 700 allows for more precise control of the airflow before entering the screening chamber.

[0068] After the airflow enters the air inlet housing 100 through the air inlet 110, the first diverter plate 600 and the second diverter plate 700 act as a whole to adjust the direction and flow of the airflow. The first diverter plate 600 is responsible for initially guiding the airflow, while the second diverter plate 700 further refines the direction of the airflow, ensuring that the airflow can flow evenly to the first air guide port 120. Through the connection between the first diverter plate 600 and the second diverter plate 700, the airflow can be more evenly distributed before entering the screening chamber, thereby improving the working efficiency of the powder separator. This design not only simplifies the internal structure of the air inlet housing 100, but also improves the flexibility and accuracy of airflow regulation.

[0069] It will be appreciated that, in some embodiments, the end of the first diverter plate 600 facing away from the air inlet 110 is connected to the end of the second diverter plate 700 near the air inlet 110. This connection allows the first diverter plate 600 and the second diverter plate 700 to work together as a whole to regulate the airflow entering the air inlet housing 100. After the airflow enters the air inlet housing 100 through the air inlet 110, the first diverter plate 600 and the second diverter plate 700 work as a whole to regulate the direction and flow of the airflow. The first diverter plate 600 is responsible for initially guiding the airflow, while the second diverter plate 700 further refines the direction of the airflow, ensuring that the airflow can flow evenly to the first air guide port 120. The connection between the first diverter plate 600 and the second diverter plate 700 allows the airflow to be more evenly distributed before entering the screening chamber, thereby improving the efficiency of the powder separator. This design not only simplifies the internal structure of the air inlet housing 100, but also improves the flexibility and accuracy of airflow regulation, ensuring that the airflow conditions are optimized during the powder selection process.

[0070] In summary, this application has the following main advantages:

[0071] First of all, the traditional V-selection air inlet 110 relies entirely on the free state of airflow to enter, and the direction of gas flow follows the "minimum resistance orientation", always flowing to the area with relatively small resistance, failing to form uniform air distribution, and the utilization rate of the powder selection area is low. In order to solve this problem, the utility model uses an air regulating device in the air inlet 110 area to complete the forced air distribution of the air inlet 110. The air regulating device is composed of two parts, namely the first diverter plate 600 and the second diverter plate 700. Both structures are composed of intersection structures such as louver valve plates. The first diverter plate 600 is equivalent to having a horizontal air guiding function, and the second diverter plate 700 has a longitudinal air guiding function. By rotating the angle of the louver valve plate to control the size of the horizontal and longitudinal cross-sectional areas of the air inlet 110, the cross-sectional wind speed of the horizontal airflow can be effectively adjusted and the longitudinal airflow can be forced into the lower part of the V-selection, so that the horizontal wind speed is controllable and the longitudinal air path has a deep air distribution effect (the air path covers the entire V-selection). The first diverter plate 600 and the second diverter plate 700 used for air adjustment in this application are composed of a transverse multi-link mechanism and a longitudinal multi-link mechanism connected in series, which respectively link several louver valve plates to rotate at any angle. The adjustment between the links does not interfere with each other, so flexible adjustment is achieved and step-by-step control is possible.

[0072] Secondly, the present application has the function of breaking up and grading the powder selection shell. The area involved in this function is the main channel where the air flow channel and the material flow come into contact to break up and grade. The material air flow channel is composed of a number of air inlet and outlet guide plates arranged in a grid shape to form a "V"-shaped air flow channel. The characteristic of this channel of the traditional V-type powder selector is that the guide plates are evenly arranged. The material enters the feed port and collides between the guide plates during the falling process under the action of gravity, completing the breaking up operation in alternating reciprocating steps. However, the longitudinal drop of this structure is small, and the breaking up space is limited, resulting in poor breaking up and grading capabilities, affecting the drying effect. In order to improve the breaking up and grading capabilities of the V-selection, the first air guide plate 400 and the second air guide plate 500 of the utility model are arranged in a "long and short alternating arrangement". This arrangement structure effectively increases the drop of the material during the falling process, increases the falling speed of the material during the reciprocating alternating breaking up operation, and improves the breaking up capability. In addition, the flow space is the main area where the V-selection forms resistance. The traditional uniform arrangement has a small flow space, a high wind speed, and a high resistance (especially when there are large pieces of material). The "long and short alternating" stepped arrangement of the utility model not only improves the breaking capacity, but also increases the flow space volume, reduces the interval wind speed, effectively reduces the resistance, and provides a larger space for powder selection. Therefore, low resistance and high powder selection efficiency can be achieved.

[0073] Furthermore, while traditional V-type selectors have numerous breakup and deflector plates in the cone area, which effectively increases air velocity, this area is mostly filled with coarse particles, leaving virtually no fine powder available for selection. This creates significant drag, making it counterproductive. To further reduce V-type selector resistance, the present invention increases the spacing between the first diverter plate 600 and the second diverter plate 700 in the cone area near the coarse powder discharge port, increasing space in this area and reducing V-type selector resistance.

[0074] In order to make the purpose, technical solutions and advantages of this application more clear, the following is a further detailed description of this utility model in conjunction with the embodiments. Taking a raw material grinding production line involving the V-type static powder separator of this application as an example, the specific method is as follows:

[0075] First, the air inlet 110 is reasonably distributed: according to the material and working conditions, the horizontal angle of the first diverter plate 600 is set to 40°, and the horizontal angle of the second diverter plate 700 is set to 52.92°.

[0076] Second, in the powder separation and classification area of the selection housing, the first and second air guide plates 400 and 500 are arranged in an alternating pattern of long and short. The first air guide plate 400 for the inlet is 634.64 mm long, while the second air guide plate 500 is 434.64 mm long, with a vertical spacing of 180 mm between the two plates. They are arranged in alternating order, for a total of 31 air guide plates. The first air guide plate 400 for the outlet 310 is 1888.93 mm long, while the second air guide plate 500 for the outlet 310 is 988.93 mm long, with a vertical spacing of 237 mm between the two plates. They are arranged in alternating order, for a total of 30 air guide plates.

[0077] Third, in the V-selection cone section 10, three air guide plates are set at the air inlet 110 with a vertical spacing of 391 mm; three air guide plates are set at the air outlet 310 with a vertical spacing of 237 mm;

[0078] Under the same operating conditions, the resistance of the V-type static powder classifier after technical transformation is reduced by about 600Pa, and the system powder selection efficiency is improved by about 15%, helping the system reduce power consumption by about 1.5kWh / t.

[0079] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly. When a directional reference is introduced in a specific embodiment, if the direction is not specifically limited to unidirectional, the direction can be unidirectional or bidirectional (two directions parallel to each other and opposite to each other). Whether it is unidirectional or bidirectional is based on what a person of ordinary skill in the art can achieve. When the directional reference is bidirectional, it should be considered that two different embodiments are introduced in parallel.

[0080] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0081] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. V-type static powder separator, characterized by: include: An air inlet housing (100) defines an air inlet cavity, the air inlet housing (100) having an air inlet (110) and a first air guide port (120) communicating with the air inlet cavity; A screening shell (200), one end of which is connected to the air inlet shell (100), the screening shell (200) defines a screening cavity, one end of the screening cavity is connected to the first air guide port (120), and the screening shell (200) is provided with an inlet and an outlet connected to the screening cavity; An air outlet housing (300) is connected to one end of the screening housing (200) facing away from the air inlet housing (100), the air outlet housing (300) defines an air outlet cavity, the air outlet housing (300) has an air outlet (310) and a second air guide port (320) communicating with the air outlet cavity, and the screening cavity is connected to the second air guide port (320); The direction from the feed port to the discharge port is a first direction (Y), the direction from the first air guide port (120) to the second air guide port (320) is a second direction (X), the first direction (Y) intersects the second direction (X), the screening shell (200) is provided with a plurality of first air guide plates (400) and a plurality of second air guide plates (500) arranged at intervals along the first direction (Y), and along the second direction (X), the length of the first air guide plate (400) is less than the length of the second air guide plate (500).

2. The V-type static powder separator according to claim 1, characterized in that: Each of the first air guide plates (400) and each of the second air guide plates (500) together constitutes a first plate group and a second plate group, the first plate group and the second plate group are arranged relative to each other along the second direction (X), the first plate group includes at least one of the first air guide plates (400) and at least one of the second air guide plates (500) arranged at intervals along the first direction (Y), and the second plate group includes at least one of the first air guide plates (400) and at least one of the second air guide plates (500) arranged at intervals along the first direction (Y).

3. The V-type static powder separator according to claim 2, characterized in that: Along the first direction (Y), each of the first air guide plates (400) and each of the second air guide plates (500) in the first plate group are arranged alternately one by one, and each of the first air guide plates (400) and each of the second air guide plates (500) in the second plate group are arranged alternately one by one.

4. The V-type static powder separator according to claim 2, characterized in that: The first air guide plates (400) in the first plate group and the second air guide plates (500) in the second plate group are arranged relative to each other in a one-to-one correspondence along the second direction (X); the second air guide plates (500) in the first plate group and the first air guide plates (400) in the second plate group are arranged relative to each other in a one-to-one correspondence along the second direction (X).

5. The V-type static powder separator according to claim 2, characterized in that: The first plate group is located on a side of the screening chamber close to the first air guide port (120), and the second plate group is located on a side of the screening chamber close to the second air guide port (320); Each of the first air guide plates (400) in the first plate group is located on a side away from the second air guide port (320), and each of the first air guide plates (400) in the second plate group is located on a side away from the first air guide port (120).

6. The V-type static powder separator according to claim 2, characterized in that: The first plate group is located on a side of the screening chamber close to the first air guide port (120), and the second plate group is located on a side of the screening chamber close to the second air guide port (320); Along the first direction (Y), the first air guide plate (400) and the second air guide plate (500) in the first plate group are both inclined toward the direction close to the discharge port; along the opposite direction of the first direction (Y), the first air guide plate (400) and the second air guide plate (500) in the second plate group are both inclined toward the direction close to the discharge port.

7. The V-type static powder separator according to claim 1, characterized in that: Along the second direction (X), the length of the first air guide plate (400) is greater than half the length of the second air guide plate (500).

8. The V-type static powder separator according to claim 1, characterized in that: The V-type static powder separator further comprises a first diverter plate (600), the first diverter plate (600) being arranged in the air inlet housing (100), one end of the first diverter plate (600) being hinged to the air inlet housing (100), and the other end extending toward the air inlet (110), the first diverter plate (600) being rotatable relative to the air inlet housing (100), and the direction of the rotation axis of the first diverter plate (600) being perpendicular to the axial direction of the air inlet (110) and perpendicular to the first direction (Y).

9. The V-type static powder separator according to claim 8, characterized in that: The V-type static powder separator also includes a second diverter plate (700), which is arranged in the air inlet housing (100), one end of the second diverter plate (700) is hinged to the air inlet housing (100), and the other end extends toward the first air guide port (120), the second diverter plate (700) is rotatable relative to the air inlet housing (100), and the rotation axis direction of the second diverter plate (700) is perpendicular to the axis direction of the air inlet (110) and perpendicular to the first direction (Y).

10. The V-type static powder separator according to claim 9, characterized in that: The end of the first diverter plate (600) facing away from the air inlet (110) is connected to the end of the second diverter plate (700) close to the air inlet (110).

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