Grading dust removal structure and efficient dust removal system and method
By using a graded dust removal structure and a multi-stage dust removal method, the problem of low dust removal efficiency in steel bar processing has been solved, achieving high-efficiency dust removal and improving the working environment and equipment operation.
Patent Information
- Application Number
- CN202511077185.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-01
- Publication Date
- 2025-11-07
AI Technical Summary
Existing dust removal systems are not very efficient in the steel bar processing process, especially in situations with high dust concentration and harsh environments, which makes it difficult to effectively remove dust, affecting the working environment and workers' health.
The system adopts a graded dust removal structure, including a dust collection tower body, partition plates, and multiple dust collection devices. Through segmented dust removal and negative pressure dust collection, combined with directional air supply and monitoring modules, it achieves multi-stage dust removal.
It improved dust removal efficiency, reduced dust concentration, improved the working environment, reduced equipment damage, and protected worker health. The dust concentration on the welding platform was reduced by 70%, and the dust recovery efficiency was increased by 50%.
Smart Images
Figure CN120900353A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of dust removal systems, in particular to a hierarchical dust removal structure, an efficient dust removal system and method. BACKGROUND
[0002] Mechanical plants produce a large amount of dust during production and processing. These dusts not only pollute the environment, but also pose a threat to the health of workers. Traditional mechanical dust collectors, such as gravity dust collectors, inertial dust collectors and cyclone dust collectors, usually have simple structure, low equipment and operation cost, but low dust removal efficiency. These devices are suitable for high dust concentration and large particle size airflow, but are usually not suitable for high dust removal occasions. Mechanical dust removal technology mainly relies on mechanical force (such as gravity, inertia, centrifugal force, etc.) to remove dust particles from the airflow. The advantages of these devices are simple structure and easy maintenance, but the disadvantages are low dust removal efficiency and possible secondary pollution, for example, although the cyclone dust collector can effectively separate larger particle dust, but the efficiency is low for smaller dust particles.
[0003] Steel bars produce a large amount of dust during feeding and processing, especially during straightening and cutting. If these dusts are not removed in time, they will not only affect the working environment, but also affect the health of the operators. Existing dust removal technologies include spray dust reduction and dust removal equipment suction filtration, but these methods have the problems of filter screen blockage and reduced dust removal effect. In order to solve the above problems, researchers have developed various new dust removal devices. For example, some scholars have studied a high-efficiency dust removal device for workshop mechanical part finishing, which includes a filtering mechanism, a cleaning mechanism and a switch mechanism, which can effectively clean the filter screen and collect the filtered dust. In addition, there is an electric automatic steel straightening machine, which integrates straightening, rust removal and oiling devices, which can effectively handle the dust and iron filings generated during steel processing.
[0004] However, the existing dust removal systems are mostly single-structure single-time dust removal, and the designed dust removal system is difficult to achieve effective dust removal for high dust concentration and poor working environment during steel feeding process, and cannot guarantee the life and health of workers.
[0005] Therefore, there is an urgent need for a hierarchical dust removal structure, an efficient dust removal system and method to solve the above problems. SUMMARY
[0006] The purpose of the present application is to provide a hierarchical dust removal structure, an efficient dust removal system and method to solve the above problems existing in the prior art.
[0007] To achieve the above purpose, the present application provides the following scheme: the present application provides a hierarchical dust removal structure, comprising:
[0008] The dust falling tower body is fixedly connected with a top plate at the top end, and is fixedly connected with a bottom plate at the bottom end.
[0009] The dust falling assembly comprises a partition plate and a dust falling piece, the partition plate is fixedly connected inside the dust falling tower body, and separates the inside of the dust falling tower body into an upper cavity and a lower cavity, the dust falling piece is arranged inside the dust falling tower body and communicates the upper cavity, the lower cavity and the space above and below the dust falling tower body, and a processing piece passes through the dust falling tower body from above the dust falling tower body and is subjected to dust falling treatment by the dust falling piece.
[0010] Preferably, the dust falling piece comprises a first half-ring dust collecting device, a second half-ring dust collecting device, a third half-ring dust collecting device and a negative pressure dust collecting device, the first half-ring dust collecting device and the second half-ring dust collecting device are arranged at the top end and the bottom end of the top plate respectively, the third half-ring dust collecting device is arranged at the top end of the partition plate, and the negative pressure dust collecting device is arranged at the top end of the bottom plate.
[0011] Preferably, the dust falling assembly further comprises a directional air supply device fixedly connected at the top end of the bottom plate, and the directional air supply device is used for conveying dust into the negative pressure dust collecting device.
[0012] Preferably, the dust falling assembly further comprises a symmetrical dust collecting device fixedly connected at the top end of the bottom plate and located in the negative pressure dust collecting device.
[0013] Preferably, a plurality of guide vanes are arranged on the inner wall of the negative pressure dust collecting device.
[0014] Preferably, the negative pressure dust collecting device is in a circular truncated cone structure, and a gap is arranged between the top end of the negative pressure dust collecting device and the partition plate.
[0015] Preferably, a first through hole is formed in the top plate, the first half-ring dust collecting device and the second half-ring dust collecting device correspond to the first through hole respectively, a second through hole is formed in the partition plate, the third half-ring dust collecting device corresponds to the second through hole, and a third through hole is formed in the bottom plate, and the symmetrical dust collecting device corresponds to the third through hole.
[0016] A high-efficiency dust removal system comprises a high-efficiency hierarchical dust removal structure,
[0017] The dust falling tower body is installed on a dust falling platform.
[0018] Preferably, the dust falling platform is further provided with a control module, monitoring modules are installed at the inlet end, the inside and the outlet end of the dust falling tower body, and the control module is electrically connected with the monitoring modules.
[0019] A high-efficiency hierarchical dust removal method comprises the following steps:
[0020] The machining piece enters the dust falling tower body from above and passes out from the bottom end of the dust falling tower body, and is subjected to segmented dust removal by the arranged dust falling piece during movement;
[0021] After dust removal, the space below the dust falling tower body is cleaned by the external movable electromagnetic dust removal device.
[0022] Compared with the prior art, the present application has the following advantages and technical effects:
[0023] The hierarchical dust removal structure, the high-efficiency dust removal system and the method provided by the present application are divided into four areas from top to bottom by the arranged top plate, the bottom plate and the partition plate, the first area is above the top plate, the second area is in the upper cavity, the third area is in the lower cavity, and the fourth area is below the bottom plate. The machining piece passes through the four areas in sequence and is subjected to segmented dust removal by the arranged dust falling piece, thereby improving the overall dust removal efficiency. The present application can reduce the amount of dust, improve the working environment, help improve the production efficiency, reduce the damage of mechanical equipment caused by excessively high dust concentration, and provide safety protection for workers. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings:
[0025] Figure 1 It is a schematic diagram of the overall structure of the present application;
[0026] Figure 2 It is a schematic diagram of the through hole distribution of the present application;
[0027] Figure 3 It is a schematic diagram of the overall working process of the present application;
[0028] Figure 4 It is a working principle flow chart of the control system of the present application;
[0029] 1, dust falling tower body; 2, top plate; 3, bottom plate; 4, partition plate; 5, first half-ring dust collecting device; 6, second half-ring dust collecting device; 7, third half-ring dust collecting device; 8, negative pressure dust collecting device; 9, directional air supply device; 10, guide vane; 11, first through hole; 12, second through hole; 13, third through hole; 14, symmetrical dust collecting device. DETAILED DESCRIPTION
[0030] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.
[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0032] With reference to Figures 1-4 The present application provides a hierarchical dust removal structure, comprising:
[0033] The dust removal tower body 1 is fixedly connected with the top plate 2 at the top end, and is fixedly connected with the bottom plate 3 at the bottom end.
[0034] The dust removal assembly comprises a partition plate 4 and a dust removal piece, the partition plate 4 is fixedly connected inside the dust removal tower body 1, and separates the inside of the dust removal tower body 1 into an upper cavity and a lower cavity, the dust removal piece is arranged inside the dust removal tower body 1 and communicates the upper cavity, the lower cavity and the space above and below the dust removal tower body 1, and the workpiece passes through the dust removal tower body 1 from above the dust removal tower body 1 and is subjected to dust removal treatment by the dust removal piece.
[0035] In an embodiment of the present application, the top plate 2, the bottom plate 3 and the partition plate 4 are divided into four areas from top to bottom, the first area is above the top plate 2, the second area is in the upper cavity, the third area is in the lower cavity, and the fourth area is below the bottom plate 3, the workpiece passes through the four areas in turn, and is subjected to segmented dust removal by the dust removal piece, thereby improving the overall dust removal efficiency.
[0036] As an optional embodiment, the dust removal piece comprises a first half-ring dust collecting device 5, a second half-ring dust collecting device 6, a third half-ring dust collecting device 7 and a negative pressure dust collecting device 8, the first half-ring dust collecting device 5 and the second half-ring dust collecting device 6 are arranged at the top end and the bottom end of the top plate 2 respectively, the third half-ring dust collecting device 7 is arranged at the top end of the partition plate 4, and the negative pressure dust collecting device 8 is arranged at the top end of the bottom plate 3.
[0037] In an embodiment of the present application, the dust collecting devices are all designed in a half-ring shape, and the shell is made of wear-resistant stainless steel for dust removal treatment.
[0038] As an optional embodiment, it further comprises a directional air supply device 9 fixedly connected at the top end of the bottom plate 3, and the directional air supply device 9 is used for conveying dust into the negative pressure dust collecting device 8.
[0039] In one embodiment of the present application, the negative pressure dust collecting device 8 collects dust efficiently by using the principle of negative pressure, and is equipped with high-efficiency filtering material polyester fiber to improve filtering precision and prolong service life.
[0040] As an optional embodiment, the symmetrical dust collecting device 14 is fixedly connected to the top end of the bottom plate 3 and located in the negative pressure dust collecting device 8.
[0041] In one embodiment of the present application, the symmetrical design helps to uniformly distribute airflow and improve dust collecting efficiency, and the shell is made of aluminum alloy material to reduce weight.
[0042] As an optional embodiment, the negative pressure dust collecting device 8 is provided with a plurality of guide vanes 10 on the inner wall thereof.
[0043] In one embodiment of the present application, the guide vanes 10 improve dust falling effect.
[0044] As an optional embodiment, the negative pressure dust collecting device 8 is in the shape of a circular truncated cone, and a gap is provided between the top end of the negative pressure dust collecting device 8 and the partition plate 4.
[0045] In one embodiment of the present application, the negative pressure dust collecting device 8 is in the shape of a column with a certain height, which is used to ensure dust collection.
[0046] As an optional embodiment, the top plate 2 is provided with a first through hole 11, the first half-ring dust collecting device 5 and the second half-ring dust collecting device 6 correspond to the first through hole 11 respectively, the partition plate 4 is provided with a second through hole 12, the third half-ring dust collecting device 7 corresponds to the second through hole 12, and the bottom plate 3 is provided with a third through hole 13, and the symmetrical dust collecting device 14 corresponds to the third through hole 13.
[0047] In one embodiment of the present application, the first through hole 11, the second through hole 12 and the third through hole 13 are used to pass the workpiece, and dust falling treatment is performed on the workpiece by the corresponding device.
[0048] A high-efficiency dust removing system comprises a high-efficiency staged dust removing structure,
[0049] The dust falling tower body 1 is installed on the dust falling platform.
[0050] In one embodiment of the present application, the dust falling tower body 1 is installed on the dust falling platform to perform dust falling treatment.
[0051] As an optional implementation, the dust falling platform is further provided with a control module, the inlet end, the interior and the outlet end of the dust falling tower body 1 are all installed with monitoring modules, and the control module is electrically connected with the monitoring modules.
[0052] In one embodiment of the application, the monitoring module includes temperature sensors, pressure sensors, and dust concentration sensors, among others. The sensors are installed at key locations in the dust falling tower, such as near the air inlet, the filter, and the air outlet, to monitor environmental parameters in real time. These sensors are connected to the input ports of the PLC controller through cables. The temperature sensor is installed in the filter section of the dust falling tower and connected to the analog input port of the PLC controller through a cable to monitor the temperature changes in the filter section. The pressure sensor is installed at the differential pressure detection points before and after the dust falling tower and connected to the analog input port of the PLC controller through a cable to monitor the differential pressure of the filter. The dust concentration sensor can be installed at the air outlet of the dust falling tower and connected to the analog input port of the PLC controller through a cable to monitor the dust concentration of the exhaust. The PLC controller automatically adjusts the speed of the fan, the opening and closing of the electromagnetic valve, and the operation of other actuators based on the data provided by the sensors through its built-in program logic to maintain the dust falling tower in the best operating state.
[0053] A high-efficiency staged dust removal method, comprising the following steps:
[0054] The workpiece enters the dust falling tower body 1 from above and exits from the bottom end of the dust falling tower body 1, and is subjected to segmented dust removal by the dust falling elements during movement;
[0055] After dust removal is complete, the space below the dust falling tower body 1 is cleaned by an external movable electromagnetic dust removal device.
[0056] In one embodiment of the present application, the first space is a highly concentrated area of dust generation during use. The main cause of dust generation in this space is the large amount of oxide scale particles falling off the surface of the steel bar during the process of changing from curved to straight shape by the wire mold. The particle size of the dust in this space varies greatly, including small and light metal dust and large flaky particles. A negative pressure dust adsorption device is installed at the position where the dust is generated by the steel bar passing through the fixed pulley in the first space, and a semi-ring dust collection device is installed on both sides of the first through hole 11 for the first dust reduction treatment. The dust in the second space is mainly generated by the dust falling from the first through hole 11 and a small amount of dust generated by the collision between the steel bar and the surrounding inlet. A semi-ring dust collection device is installed at the second through hole 12 for secondary dust reduction operation, aiming to further reduce the amount of dust falling from the second through hole 12. The dust in the third space is generated by the dust falling from the third through hole 13 and a small amount of dust particles falling off by the collision between the steel bar and the internal dust removal equipment. After the first two stages of dust removal process, the amount of dust in the third space will be effectively controlled, and a negative pressure dust collection device with guide vanes is installed, and a directional air supply device is installed in the symmetrical direction to improve the dust adsorption efficiency. A certain height of columnar dust partition is installed on the upper part of the third through hole 13, and dust collection devices are installed on both ends of the partition symmetrically to adsorb a small amount of dust particles generated by the collision between the steel bar raw material and the surrounding equipment. The dust particles in the fourth space are mainly generated by the dust falling from the third through hole 13 and the collision between the steel bar and the equipment or itself. After the above process, the main particles falling from the third through hole 13 are large flaky oxide scales, and the dust concentration is greatly reduced compared with the previous layer, which can be combined with the existing equipment for dust reduction. The lower area of the fourth space is a dust accumulation area, and after the above treatment, this area is mainly large flaky oxide scales. A movable electromagnetic dust removal device is installed in this area to quickly clean the large particle dust and reduce the equipment downtime and manual cleaning time.
[0057] Before the system starts, the application checks whether the damper is closed to ensure that the starting current is not too large, and then the fan starts. Before each system start, the damper needs to be checked to ensure that it is closed before starting. For PLC control, the upper computer part adopts TP277 panel of Siemens 270 series, which is configured by WinCC Flexible software and integrates multiple communication ports. The master controller adopts Siemens S7-315 / 2DP programmable controller. The sensor signal acquisition adopts a distributed control structure, and Profibus field bus is responsible for data transmission of each slave station in the system. Remote I / O adopts ET200 Pro of ET200 series, which has IP65 protection level and can be directly installed in the field. The PLC controller automatically adjusts the speed of the fan, the opening and closing of the electromagnetic valve, the frequency of the jet dust removal, etc. according to the data collected by the sensor to ensure that the dust removal tower can maintain the best operating state under various working conditions.
[0058] The application divides the dust removal space into four areas, and uses corresponding dust removal methods for each area to greatly improve the dust removal efficiency. There is a power and control system inside the dust removal tower body 1, which is responsible for monitoring and adjusting the entire dust removal process. The system integrates an advanced PLC controller as the brain, responsible for processing data from various sensors and automatically adjusting the operating parameters of the dust removal tower based on these data. These sensors include temperature sensors, pressure sensors, dust concentration sensors, etc., which are responsible for real-time monitoring of environmental changes in the dust removal tower, such as temperature, pressure, dust concentration, and other key indicators. To ensure that dust can be collected by the negative pressure dust collection device in a targeted manner, a directional air supply device is installed on the upper part of the bottom plate 3, and the air speed and direction can be adjusted to ensure dust adsorption rate. The negative pressure dust collection device on the upper part of the bottom plate 3 has guide vanes that work with the directional air supply device and uses a symmetrical dust collection device to ensure that small metal particles are absorbed, thereby ensuring that the bottom plate inlet and lower area metal particles are mainly in the form of sheet-shaped oxide skin, facilitating subsequent cleaning. The multi-stage dust removal device can effectively reduce the concentration of metal particles in the workshop, with the welding platform dust concentration reduced by 70%, and the dust recovery efficiency increased by 50%, providing protection for the life and health of workers.
[0059] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0060] The above-described embodiments are only preferred modes of the present application and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope of the present application.
Claims
1. A hierarchical dust removal structure, characterized by, It includes: The dust falling tower body (1) is fixedly connected with the top plate (2) at the top end, and the bottom plate (3) is fixedly connected at the bottom end of the dust falling tower body (1); The dust falling assembly includes a partition plate (4) and a dust falling part, the partition plate (4) is fixedly connected inside the dust falling tower body (1), and the dust falling tower body (1) is divided into an upper cavity and a lower cavity, the dust falling part is arranged in the dust falling tower body (1) and communicates the upper cavity, the lower cavity and the space above and below the dust falling tower body (1), and the processing part passes through the dust falling tower body (1) from above the dust falling tower body (1) and is subjected to dust falling treatment by the dust falling part.
2. A hierarchical dust removal structure according to claim 1, characterized in that: The dust falling part includes a first half-ring dust collecting device (5), a second half-ring dust collecting device (6), a third half-ring dust collecting device (7) and a negative pressure dust collecting device (8), the first half-ring dust collecting device (5) and the second half-ring dust collecting device (6) are arranged at the top end and the bottom end of the top plate (2) respectively, the third half-ring dust collecting device (7) is arranged at the top end of the partition plate (4), and the negative pressure dust collecting device (8) is arranged at the top end of the bottom plate (3).
3. A hierarchical dust removal structure according to claim 2, characterized in that: It also includes a directional air supply device (9) fixedly connected at the top end of the bottom plate (3), which is used for conveying dust into the negative pressure dust collecting device (8).
4. A hierarchical dust removal structure according to claim 3, characterized in that: It also includes a symmetrical dust collecting device (14) fixedly connected at the top end of the bottom plate (3) and located in the negative pressure dust collecting device (8).
5. A hierarchical dust removal structure according to claim 2, characterized in that: A plurality of guide vanes (10) are arranged on the inner wall of the negative pressure dust collecting device (8).
6. A hierarchical dust removal structure according to claim 2, characterized in that: The negative pressure dust collecting device (8) is a circular truncated cone structure, and a gap is arranged between the top end of the negative pressure dust collecting device (8) and the partition plate (4).
7. A hierarchical dust removal structure according to claim 4, characterized in that: A first through hole (11) is formed in the top plate (2), the first half-ring dust collecting device (5) and the second half-ring dust collecting device (6) correspond to the first through hole (11) respectively, a second through hole (12) is formed in the partition plate (4), the third half-ring dust collecting device (7) corresponds to the second through hole (12), and a third through hole (13) is formed in the bottom plate (3), and the symmetrical dust collecting device (14) corresponds to the third through hole (13).
8. An efficient dust removal system, comprising the efficient hierarchical dust removal structure of any one of claims 1-7, characterized in that: The dust falling tower body (1) is installed on a dust falling platform.
9. The high efficiency dust removal system of claim 8, wherein: The dust falling platform is also provided with a control module, and the inlet end, the inside and the outlet end of the dust falling tower body (1) are all provided with monitoring modules, and the control module is electrically connected with the monitoring modules.
10. A method for high efficiency classification and dust removal, suitable for use in a high efficiency dust removal system according to any one of claims 8-9, characterized in that, It includes the following steps: The processing part enters the dust falling tower body (1) from above the dust falling tower body (1) and passes out from the bottom end of the dust falling tower body (1), and the dust falling part arranged is used for segmental dust removal of the processing part during movement; After complete dust removal, the space below the dust falling tower body (1) is cleaned by an external movable electromagnetic dust removal device.