Adjustable dust collection shroud for dust cyclone separation

Abstract

This utility model discloses an adjustable dust collection hood for dust cyclone separation, including a dust collection pipe, an adjustment mechanism disposed on the outside of the dust collection pipe, a dust collector connected to one end of the dust collection pipe, a pre-separation mechanism connected to the other end of the dust collection pipe, and a guide plate disposed in the pre-separation mechanism. A dust collection box is disposed on one side of the pre-separation mechanism, one end of which is connected to the pre-separation mechanism through a transition section, and the other end of which has a dust discharge port. A dust collection hood is disposed on the end of the pre-separation mechanism away from the dust collection pipe, one end of which is connected to the pre-separation mechanism, and the other end of which has a dust suction port. An air suction port is disposed on the side wall of the dust collection hood. The guide plate is tilted at a preset angle to the pre-separation mechanism. This device realizes the pretreatment of large dust particles, avoids their high-speed impact on the dust collector filter material, prolongs the filter material clogging cycle, and steadily improves the filtration efficiency. It also eliminates the capture dead angle of traditional fixed-angle collection hoods, achieving a dust source capture efficiency of more than 95%, and has good practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust collection hoods, specifically relating to an adjustable dust collection hood for dust cyclone separation. Background Technology

[0002] Dust pollution control is a crucial aspect of environmental protection in industrial production. The performance of dust collection equipment directly affects dust collection efficiency and environmental control effectiveness. Currently, most dust collection equipment on the market adopts a direct-flow filtration design, where dust particles pass directly through the dust collector with the airflow. This design has significant drawbacks: large dust particles directly impact the filter media under the influence of high-speed airflow, causing rapid clogging and a significant decrease in filtration efficiency. This necessitates frequent replacement or cleaning of the filter media, increasing maintenance costs and affecting the continuous operation of the equipment.

[0003] Meanwhile, the collection hoods equipped with traditional dust removal equipment are mostly fixed-angle or have only a single joint adjustment function, with a limited adjustment range. They are difficult to adapt to dynamic working conditions with different dust diffusion radii and diffusion flow lines. When the location of the pollution source changes or the dust diffusion direction changes, the fixed-angle collection hood is prone to dust capture dead angles, causing dust to escape and failing to achieve efficient source capture of dust. The overall performance is poor. In addition, because large dust particles are not separated in advance, a large number of particles directly enter the dust collector, further aggravating the filter material clogging problem and forming a vicious cycle of short equipment maintenance cycle and low treatment efficiency. In summary, there is an urgent need for an adjustable dust collection hood device for dust cyclone separation. Utility Model Content

[0004] To address some or all of the technical problems existing in the prior art, this utility model provides an adjustable dust collection hood for dust cyclone separation, comprising a dust collection pipe, an adjustment mechanism disposed outside the dust collection pipe, a dust collector connected to one end of the dust collection pipe, a pre-separation mechanism connected to the other end of the dust collection pipe, and a guide plate disposed within the pre-separation mechanism, wherein:

[0005] One end of the adjustment mechanism is connected to the fixing mechanism via the first hinge plate, and the other end is connected to the pre-separation mechanism via the second hinge plate. The adjustment mechanism includes multiple brackets connected by a third hinge plate, and the brackets are hinged to the third hinge plate.

[0006] A dust collection box is provided on one side of the pre-separation mechanism. One end of the dust collection box is connected to the pre-separation mechanism through a transition section, and the other end has a dust discharge port. A dust collection hood is provided at the end of the pre-separation mechanism away from the dust collection pipe. One end of the dust collection hood is connected to the pre-separation mechanism, and the other end has a dust suction port. An air suction port is provided on the side wall of the dust collection hood. The guide plate is tilted at a preset angle to the pre-separation mechanism.

[0007] In one specific embodiment, the adjustable dust collection hood for dust cyclone separation described above has 2 to 4 supports.

[0008] In one specific embodiment, in the adjustable dust collection hood for dust cyclone separation described above, the dust collection box and the transition section are detachably connected.

[0009] In one specific embodiment, in the adjustable dust collection hood for dust cyclone separation described above, the inclination angle of the guide plate is 50°~60°.

[0010] In one specific embodiment, in the adjustable dust collection hood for dust cyclone separation described above, the end face of the dust suction port is an inclined surface.

[0011] The adjustable dust collection hood for dust cyclone separation of this utility model has the following advantages and beneficial effects:

[0012] This device features a simple structure and is easy to assemble and disassemble. It guides the dust-laden airflow to form a spiral cyclone, using centrifugal force to throw large dust particles with a diameter ≥50μm toward the inner wall of the pre-separation mechanism. The particles then settle into the detachable dust collection box by gravity, achieving pre-treatment of large dust particles. This prevents them from impacting the dust collector filter material at high speed, thus extending the filter material clogging cycle, stabilizing and improving filtration efficiency, and significantly reducing replacement frequency and maintenance costs. Furthermore, by setting an adjustment mechanism, when the pre-separation mechanism is manually pushed, the bracket rotates relative to the dust collection hood, flexibly adjusting its position to accurately align with the pollution source. This eliminates the capture dead angles of traditional fixed-angle collection hoods, achieving a dust source capture efficiency of over 95%. It is particularly suitable for industrial scenarios where the pollution source location is variable, demonstrating excellent practicality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for further understanding of the embodiments of this utility model and constitute a part of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0014] Figure 1 This is a schematic diagram of the adjustable dust collection hood for dust cyclone separation according to this utility model.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1-Dust collection pipe, 2-Pre-separation mechanism, 3-First hinge plate, 4-Fixing mechanism, 5-Second hinge plate, 6-Third hinge plate, 7-Bracket, 8-Dust collection box, 81-Transition section, 82-Dust discharge port, 9-Dust collection hood, 91-Dust suction port, 92-Air suction port. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] like Figure 1As shown, this utility model discloses an adjustable dust collection hood for dust cyclone separation, including a dust collection pipe 1, an adjustment mechanism disposed on the outside of the dust collection pipe 1, a dust collector (not shown) connected to one end of the dust collection pipe 1, a pre-separation mechanism 2 connected to the other end of the dust collection pipe 1, and a guide plate (not shown) disposed in the pre-separation mechanism 2. One end of the adjustment mechanism is connected to a fixing mechanism 4 via a first hinge plate 3, and the other end is connected to the pre-separation mechanism 2 via a second hinge plate 5. The plane of the first hinge plate 3 and the plane of the second hinge plate 5 are perpendicular to each other, supporting omnidirectional dynamic adjustment of the adjustment mechanism. The fixing mechanism 4 can be fixedly installed in a suitable location near industrial production equipment, such as on a workshop column or wall, providing a stable support foundation for the entire device. The adjustment mechanism includes multiple supports 7 connected via a third hinge plate 6. The supports 7 are hinged to the third hinge plate 6, allowing relative rotation between the supports 7. Since the adjustment mechanism is segmented and fixedly connected to the outer periphery of the dust collection pipe 1, the adjustment mechanism can be adjusted... The position and angle of the structure can be adjusted, thereby adjusting the position and angle of the dust collection pipe 1; a dust collection box 8 is provided on one side of the pre-separation mechanism 2, one end of the dust collection box 8 is connected to the pre-separation mechanism 2 through a transition section 81, and the other end has a dust discharge port 82. A dust collection hood 9 is provided at the end of the pre-separation mechanism 2 away from the dust collection pipe 1. When it is necessary to adjust the position and angle of the dust collection hood 9, the operator can manually push the pre-separation mechanism 2. Due to the hinge relationship between the brackets 7, the brackets 7 will rotate relative to each other, thereby driving the pre-separation mechanism 2 and the dust collection hood 9. The position and angle are adjusted to adapt to different dust diffusion conditions, ensuring that the dust collection hood 9 can accurately target the dust pollution source and effectively capture dust. One end of the dust collection hood 9 is connected to the pre-separation mechanism 2, and the other end has a dust suction port 91. The side wall of the dust collection hood 9 has an air intake port 92. The guide plate is tilted at a preset angle to the pre-separation mechanism 2. By setting the air intake port 92, the air drawn in by the air intake port 92 will cooperate with the guide plate to form a special airflow. When the dust-laden airflow enters the pre-separation mechanism 2, under the guidance of the guide plate, the airflow will form a cyclone motion. During the cyclone motion, large dust particles, due to their greater inertia, will be thrown towards the inner wall of the pre-separation mechanism 2 and slide down the inner wall under the action of gravity, eventually falling into the dust collection box 8 for collection and being discharged through the dust discharge port 82.

[0019] In one specific embodiment, in the adjustable dust collection hood for dust cyclone separation of this utility model, the number of supports 7 is 2 to 4, more specifically, the number of supports 7 is 2. Of course, the specific number of supports 7 needs to be matched and set according to the length of the dust collection pipe 1 in actual use.

[0020] In one specific embodiment, in the adjustable dust collection hood for dust cyclone separation of this utility model, the dust collection box 8 and the transition section 81 are detachably connected, for example by threaded connection, snap-fit ​​connection, etc. When the dust collection box 8 is full of dust, the operator can easily disassemble the dust collection box 8 and discharge the dust through the dust outlet 82 for cleaning. After cleaning, the dust collection box 8 is reinstalled back into the transition section 81 to ensure the normal operation of the pre-separation mechanism 2.

[0021] In one specific embodiment, in the adjustable dust collection hood for dust cyclone separation of this utility model, the tilt angle of the guide plate is 50°~60°, more specifically, the tilt angle of the guide plate is 55°. Of course, the tilt angle of the guide plate needs to be set according to the specific working conditions such as the particle size of the dust particles in actual use.

[0022] As a specific embodiment, in the adjustable dust collection hood for dust cyclone separation of this utility model, the end face of the dust suction port 91 is inclined. This setting can change the direction of airflow entering the dust collection hood 9, so that the dust-laden airflow can enter the dust collection hood 9 more smoothly. Moreover, the end face of the dust suction port 91 is inclined, which has a larger suction area than a straight face.

[0023] The working principle of the adjustable dust collection hood for dust cyclone separation of this utility model is as follows:

[0024] After the dust collector is started, the dust-laden airflow enters the pre-separation mechanism 2 through the suction port 91 of the dust collection hood 9. During this process, the airflow drawn in through the suction port 92 impacts the guide plate. The tilt angle of the guide plate forces the airflow to generate a spiral upward cyclone motion, forming a centrifugal force field. In the cyclone motion, large dust particles with a diameter ≥50μm are thrown towards the inner wall of the pre-separation mechanism 2 due to their greater inertia and slide down the wall to the lower dust collection box 8. Small dust particles continue to flow towards the dust collection pipe 1 with the airflow. The airflow that has been pre-separated enters the downstream dust collector through the dust collection pipe 1. Since the large dust particles have been separated in advance, the filter material no longer bears the high-speed impact, and the filtration efficiency is stably increased by more than 40%.

[0025] In summary, compared with the prior art, the adjustable dust collection hood for dust cyclone separation of this utility model has the following advantages and beneficial effects:

[0026] This device features a simple structure and is easy to assemble and disassemble. It guides the dust-laden airflow to form a spiral cyclone, using centrifugal force to throw large dust particles with a diameter ≥50μm onto the inner wall of the pre-separation mechanism 2. The particles then settle into the detachable dust collection box 8 under gravity, achieving pre-treatment of large dust particles. This prevents them from impacting the dust collector filter material at high speed, thus extending the filter material clogging cycle, stabilizing and improving filtration efficiency, and significantly reducing replacement frequency and maintenance costs. Furthermore, by setting an adjustment mechanism, when the pre-separation mechanism 2 is manually pushed, the bracket 7 rotates relative to the dust collection hood 9, flexibly adjusting its position to accurately align with the pollution source. This eliminates the capture dead angle of traditional fixed-angle collection hoods, achieving a dust source capture efficiency of over 95%. It is particularly suitable for industrial scenarios where the pollution source location is variable, demonstrating excellent practicality.

[0027] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement state shown in the accompanying drawings.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable dust collection hood for dust cyclone separation, characterized in that, The adjustable dust collection hood for dust cyclone separation includes a dust collection pipe, an adjustment mechanism disposed outside the dust collection pipe, a dust collector connected to one end of the dust collection pipe, a pre-separation mechanism connected to the other end of the dust collection pipe, and a guide plate disposed within the pre-separation mechanism, wherein: One end of the adjustment mechanism is connected to a fixing mechanism via a first hinge plate, and the other end is connected to the pre-separation mechanism via a second hinge plate. The adjustment mechanism includes multiple brackets connected via a third hinge plate, and the brackets are hinged to the third hinge plate. A dust collection box is provided on one side of the pre-separation mechanism. One end of the dust collection box is connected to the pre-separation mechanism through a transition section, and the other end has a dust discharge port. A dust collection hood is provided at the end of the pre-separation mechanism away from the dust collection pipe. One end of the dust collection hood is connected to the pre-separation mechanism, and the other end has a dust suction port. An air suction port is provided on the side wall of the dust collection hood. The guide plate is tilted at a preset angle to the pre-separation mechanism.

2. The adjustable dust collection hood for dust cyclone separation according to claim 1, characterized in that, The number of supports is 2 to 4.

3. The adjustable dust collection hood for dust cyclone separation according to claim 1, characterized in that, The dust collection box and the transition section are detachably connected.

4. The adjustable dust collection hood for dust cyclone separation according to claim 1, characterized in that, The tilt angle of the guide plate is 50°~60°.

5. The adjustable dust collection hood for dust cyclone separation according to claim 1, characterized in that, The suction port end face is beveled.

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