Sundry filtering and cleaning dust hood device

Abstract

The utility model relates to a sundry filtering and cleaning dust hood device which comprises a dust hood shell connected with a dust removal pipeline, a sundry screening device is arranged in the dust hood shell and comprises two sundry screening pieces which are in radial symmetry, and the two sundry screening pieces respectively incline from the inner wall of the dust hood shell to the center. The sundry screening piece comprises a partition plate connecting part and screening bars which are arranged at the lower end of the partition plate connecting part in parallel at equal intervals. A sundry guide plate is arranged at the bottom of the dust hood shell below the sundry screening sheet, the sundry guide plate and the dust hood shell form a sundry collecting channel, and an inspection cleaning door is arranged at the bottom of the dust hood shell. According to the technical scheme, the impurity screening efficiency is greatly improved, the number of impurities entering subsequent dust removal equipment is effectively reduced, the dust removal equipment is prevented from being damaged by the impurities, and the service life of the dust removal equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of dust removal technology, and in particular relates to a dust collection hood device for filtering and cleaning debris. Background Technology

[0002] In the steel production process, key processes such as coking, sintering, pelletizing, ironmaking, and steelmaking all rely heavily on belt conveyor systems. These systems play a crucial role in material transportation, providing a fundamental guarantee for the continuity and stability of the entire production process. Simultaneously, to control dust pollution generated during production and ensure that the production environment meets environmental protection requirements, each belt conveyor link is equipped with a corresponding dust removal system. These systems ultimately connect to dust collectors to achieve effective dust collection and treatment.

[0003] However, in actual production, due to the diversity of material sources, including both road and rail transport, various debris inevitably gets mixed in during loading, unloading, transportation, and stacking. This debris includes things like tarpaulins, sampling bags, wood, and other miscellaneous items. When the belt conveyor system is running, these debris are easily sucked into the dust removal system.

[0004] Once these debris enters the dust collection system, they pose a serious threat to the safe operation of the dust collector. The debris accumulates inside the dust collector, obstructing normal airflow and causing a sharp increase in the pressure differential. As the pressure differential continues to increase, the dust collector's filtration efficiency will significantly decrease, while also increasing the operating load on the equipment. More seriously, the accumulation of debris may also cause ash discharge failures, preventing the dust collector from properly discharging the collected dust and further affecting the dust collection effect.

[0005] In extreme cases, debris damage to dust collectors can lead to equipment malfunctions and shutdowns. Once a dust collector stops operating, it not only disrupts the entire production process and causes production interruptions, but may also trigger environmental accidents, resulting in significant economic losses and reputational damage to the company. Therefore, effectively preventing debris from entering the dust collector and ensuring the stable operation of the dust collection system has become a crucial issue that steel companies urgently need to address. Utility Model Content

[0006] In view of the problems existing in the prior art, this utility model provides a dust hood device for filtering and cleaning debris.

[0007] This utility model is implemented as follows: a dust collection hood device for filtering and cleaning debris, characterized in that: it includes a dust collection hood shell connected to a dust removal pipe; a debris screening device is installed inside the dust collection hood shell; the debris screening device consists of two radially symmetrical debris screening plates; the two debris screening plates are inclined from the inner wall of the dust collection hood shell towards the center; each debris screening plate includes a partition connecting part and parallel, equally spaced screen rods at the lower end of the partition connecting part; a debris guide plate is provided at the bottom of the dust collection hood shell below the debris screening plates; the debris guide plate and the dust collection hood shell form a debris collection channel; and an inspection and cleaning door is provided at the bottom of the dust collection hood shell.

[0008] More preferably, a debris combing device is also hinged to the dust collection hood housing above the two debris sieving plates for combing the debris attached to the debris sieving plates.

[0009] More preferably, the debris sorting device includes a support shaft, which is rotatably mounted on the dust hood housing. Both ends of the support shaft extend out of the dust hood housing, and a rotating handle is installed at each end. Cleaning rods are parallel to each other and evenly spaced on the support shaft at the lower end of the partition connection portion. The cleaning rods and the sieve rods are arranged in an alternating manner.

[0010] More preferably, the tilt angle of the debris screening plate is 45°.

[0011] More preferably, the debris deflector is tilted at 45° to the horizontal direction.

[0012] In a further preferred embodiment, a reinforcing plate is provided between the debris deflector and the bottom plate of the dust hood housing.

[0013] The advantages and technical effects of this utility model are as follows: This utility model, by adopting the above technical solution, has the following technical effects:

[0014] 1. High-efficiency debris filtration: Thorough screening: The radially symmetrical and inclined debris screening plate structure, combined with the parallel and equally spaced screen bars, can intercept debris in the airflow from multiple directions, greatly improving the screening efficiency of debris, effectively reducing the amount of debris entering the subsequent dust removal equipment, protecting the dust removal equipment from damage by debris, and extending the service life of the dust removal equipment.

[0015] 2. Optimized airflow: The inclined screening plate structure helps guide airflow, allowing it to pass more smoothly through the screening device, reducing airflow resistance and ensuring stable operation and efficient dust removal of the dust collection system. Simultaneously, the evenly spaced screen bars result in more uniform airflow distribution, further improving the screening effect.

[0016] 3. Prevent clogging of the screening device and clean it promptly: The cleaning rods of the debris combing device are staggered with the screen rods, which can effectively comb off the debris attached to the screen rods during rotation, preventing debris from accumulating and clogging the screening device. By regularly rotating the handle to comb the debris, or as needed, the screening device can maintain good ventilation area and screening performance at all times.

[0017] 4. Reduced maintenance costs: It avoids airflow obstruction caused by clogging of the screening device, reduces maintenance costs and downtime caused by frequent cleaning or replacement of the screening device, and improves the operating efficiency and economy of the entire dust removal system.

[0018] 5. Facilitates debris collection and cleaning: Centralized collection: The debris collection channel formed by the debris guide plate and the dust hood shell can collect the debris falling from the screening device together, preventing the debris from scattering around inside the dust hood and facilitating subsequent cleaning.

[0019] 6. Easy to operate: The cleaning door allows operators to easily open the bottom of the dust hood to clean up the collected debris without disassembling the entire device, greatly improving cleaning efficiency and reducing maintenance difficulty and labor intensity.

[0020] 7. Enhance the stability and safety of the dust removal system: Ensure operation: This device effectively prevents debris from entering the dust removal system, avoiding problems such as increased pressure differential and ash discharge failure caused by debris, reducing energy consumption, reducing the risk of environmental accidents caused by dust collector malfunctions and shutdowns, and ensuring the stable and safe operation of the dust removal system.

[0021] 8. Simple structure and easy operation and maintenance: The overall structure of the device is relatively simple, and the design of each component is reasonable, making it easy to manufacture and install. The combination of components such as the debris screening device, debris combing device, and debris guide plate realizes the functions of debris filtration, cleaning, and collection, and the structure is compact, occupying little space.

[0022] 9. Easy Maintenance: The debris sorting device is easy to operate, allowing operators to conveniently sort debris from outside the dust hood. Maintenance primarily focuses on cleaning debris and periodically checking the wear and tear of components, making maintenance relatively simple and reducing maintenance costs and personnel training requirements. Attached Figure Description

[0023] Figure 1 This is the front view of this utility model;

[0024] Figure 2 This is a side view of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the debris screening plate structure;

[0027] Figure 5 This is a schematic diagram of the debris sorting device.

[0028] 1. Dust hood housing; 2. Debris screening device; 21. Debris screening plate; 210. Partition connecting part; 211. Screen rod; 3. Debris guide plate; 31. Debris collection channel; 4. Inspection and cleaning door; 5. Debris combing device; 51. Support shaft; 52. Rotating handle; 53. Cleaning rod; 6. Reinforcing plate; 7. Dust removal pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0030] Please see Figures 1 to 5 A debris filtration and cleaning dust collection hood device includes a dust collection hood shell 1 connected to a dust removal pipe 7. A debris screening device 2 is installed inside the dust collection hood shell. The debris screening device comprises two radially symmetrical debris screening plates 21, which are inclined from the inner wall of the dust collection hood shell towards the center. Each debris screening plate includes a partition connecting part 210 and parallel, equally spaced screen rods 211 at the lower end of the partition connecting part. Below the debris screening plates, at the bottom of the dust collection hood shell, a debris guide plate 3 is provided. The debris guide plate and the dust collection hood shell form a debris collection channel 31. An inspection and cleaning door 4 is provided at the bottom of the dust collection hood shell.

[0031] More preferably, a debris combing device 5 is also hinged to the dust collection hood shell above the two debris sieving plates for combing the debris attached to the debris sieving plates.

[0032] More preferably, the debris sorting device 5 includes a support shaft 51, which is rotatably mounted on the dust hood housing. Both ends of the support shaft extend out of the dust hood housing, and a rotating handle 52 is installed at the end. Cleaning rods 53 are parallel to each other and equally spaced on the support shaft at the lower end of the partition connection part. The cleaning rods are staggered with the screen rods of the debris screening plate.

[0033] The working principle of this invention is as follows: Debris suction and preliminary screening: When the dust removal system is started, negative pressure is generated in the dust removal pipe, creating a negative pressure area at the outer shell of the dust collection hood. The airflow containing debris is drawn into the interior of the dust collection hood under the pressure difference. The airflow carries the debris upwards, first contacting the debris screening device. Because the two debris screening plates are radially symmetrical and inclined from the inner wall of the dust collection hood towards the center, this structure increases the contact area with the airflow. The airflow passes through the gaps between the screening bars, while larger or heavier debris is blocked by the screening bars and cannot continue to rise with the airflow, thus achieving preliminary screening of the debris.

[0034] Debris removal: As the device operates, some debris may adhere to the screen bars of the debris screening plate, affecting airflow and screening efficiency. In this case, the operator can manually rotate the handles at both ends of the support shaft. Because the support shaft is hinged and mounted on the dust collection hood housing, rotating the handles will cause the support shaft to rotate. The parallel and equally spaced cleaning bars on the support shaft will rotate accordingly. Since the cleaning bars are staggered with the screen bars, they will contact the debris on the screen bars during rotation, removing the debris.

[0035] Debris Collection and Removal: Debris intercepted and combed by the screening device falls naturally under gravity and enters the debris guide plate located below the debris screening plate. The debris guide plate and the dust hood outer shell form a debris collection channel, and the debris slides down the guide plate to the bottom of the dust hood outer shell. When it is necessary to remove the debris, the operator can open the inspection and cleaning door located at the bottom of the dust hood outer shell to remove the collected debris.

[0036] More preferably, the inclination angle of the debris screening plate is 45°. This facilitates airflow in lifting debris and allowing it to fall naturally.

[0037] In a further preferred embodiment, the debris deflector is tilted at 45° to the horizontal direction, which facilitates the debris falling to the bottom of the dust hood.

[0038] In a further preferred embodiment, a reinforcing plate 6 is provided between the debris guide plate and the bottom plate of the dust hood housing to enhance the connection strength between the debris guide plate and the bottom plate, improve structural stability, reduce deformation and damage, extend the life of the device, and ensure the stable operation of the dust removal system.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust collection hood device for filtering and cleaning debris, characterized in that: The device includes a dust collection hood shell connected to a dust removal duct. Inside the dust collection hood shell is a debris screening device consisting of two radially symmetrical debris screening plates. The two debris screening plates are inclined towards the center from the inner wall of the dust collection hood shell. Each debris screening plate includes a partition connecting part and parallel, equally spaced screen rods at the lower end of the partition connecting part. Below the debris screening plates, at the bottom of the dust collection hood shell, there is a debris guide plate. The debris guide plate and the dust collection hood shell form a debris collection channel. At the bottom of the dust collection hood shell, there is an inspection and cleaning door.

2. The debris filtering and cleaning dust collection hood device according to claim 1, characterized in that: A debris combing device is also hinged to the dust collection hood housing above the two debris sieving plates for combing out debris attached to the debris sieving plates.

3. The debris filtering and cleaning dust collection hood device according to claim 2, characterized in that: The debris sorting device includes a support shaft, which is rotatably mounted on the dust collection hood housing. Both ends of the support shaft extend out of the dust collection hood housing, and a rotating handle is installed at each end. Cleaning rods are parallel to each other and evenly spaced on the support shaft at the lower end of the partition connection part. The cleaning rods and the sieve rods are arranged alternately.

4. The debris filtering and cleaning dust hood device according to claim 1, characterized in that: The tilt angle of the debris screening plate is 45°.

5. The debris filtering and cleaning dust hood device according to claim 1, characterized in that: The debris deflector is tilted at 45° to the horizontal.

6. The debris filtering and cleaning dust collection hood device according to claim 1, characterized in that: A reinforcing plate is provided between the debris deflector and the bottom plate of the dust hood.

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