Online cloth bag damage detection device for dust remover

Abstract

An on-line cloth bag damage detection device for a dust remover comprises a folding type laser emission assembly installed on an upper cover of a dust remover air purification chamber, and the folding type laser emission assembly is located at the position of a side plate of the dust remover air purification chamber; the folding type laser emission assembly comprises a fixed arm, a laser emission assembly and a laser emission assembly, wherein the fixed arm is vertically mounted on an upper cover of a gas purification chamber of the dust remover; the driving air cylinder is installed at the lower end of the fixed arm in a hinged mode, and a piston rod of the driving air cylinder is connected with the overturning arm in a hinged mode; the laser emitter is arranged on the dust collecting bag side of the overturning arm, and the laser emitter can emit a rectangular laser column; the observation cylinder is mounted on the upper cover, and an observation opening in the lower end of the observation cylinder faces the dust collection bag; and an observation component for observing the state in the air purification chamber of the dust remover is mounted in the observation cylinder. The detection performance is comprehensive, accurate, efficient and reliable, and the device is an important tool for guaranteeing the normal operation of the dust remover and improving the production efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal and environmental protection, and in particular relates to an online bag damage detection device for a dust collector. Background Art

[0002] Bag filters are widely used in industrial production processes due to their high dust removal efficiency. However, over time, the bags in these filters may break due to various factors (such as wear, corrosion, and high temperatures), affecting dust removal efficiency and potentially causing excessive emissions and environmental pollution.

[0003] Currently, there are two main methods for detecting bag damage in bag filters:

[0004] Online or shutdown inspection: This method requires manual inspection of the bags for damage. While simple, it is labor-intensive and inefficient. Furthermore, due to the subjectivity and limitations of manual inspection, accuracy is difficult to guarantee. Furthermore, frequent shutdowns can disrupt normal production line operation.

[0005] Fluorescent powder testing: This method sprays fluorescent powder into the dust collector and uses fluorescent detection equipment to observe its distribution on the bags to determine if the bags are damaged. While this method offers high accuracy, it must be performed while the machine is shut down. Each test is expensive, can cause secondary pollution to the work environment, and poses a potential threat to worker health. Furthermore, if the bags are damaged again shortly after testing, the machine must be shut down for another fluorescent powder test, which undoubtedly increases production costs and downtime.

[0006] In view of the above-mentioned deficiencies in the existing technology, it is necessary to develop a new type of online bag damage detection device for bag dust collector. The device should be able to realize real-time monitoring of bag damage without affecting the normal operation of the dust collector, and have the characteristics of high accuracy, low labor intensity, and non-toxicity.

[0007] Therefore, the present invention is proposed to solve the above-mentioned problems in the prior art and to provide a novel online bag damage detection device for a dust collector to meet the demand for bag damage detection of a bag dust collector in industrial production. Utility Model Content

[0008] In view of the problems existing in the prior art, the utility model provides an online bag damage detection device for a dust collector which is accurate, low in labor intensity and non-toxic.

[0009] The utility model is implemented as follows: an online bag damage detection device for a dust collector includes a foldable laser emitting assembly mounted on an upper cover of a clean air chamber of the dust collector, the foldable laser emitting assembly being located at a side panel of the clean air chamber of the dust collector;

[0010] The foldable laser emitting assembly comprises: a fixed arm, the fixed arm being vertically mounted on the upper cover of the dust collector clean air chamber, the lower end of the fixed arm being inserted into the dust collector clean air chamber;

[0011] A driving cylinder is hingedly mounted on the lower end of the fixed arm, and a piston rod of the driving cylinder is hingedly connected to the flip arm. The flip arm can perform a flipping action under the drive of the driving cylinder;

[0012] A laser emitter is provided on the dust bag side of the flip arm. The laser emitter can emit a rectangular laser column. The rectangular laser column is located between two adjacent rows of dust bags. The lower edge of the rectangular laser column is flush with the upper surface of the dust bag mounting plate and is not higher than the dust bag opening.

[0013] An observation tube is installed on the upper cover, with an observation port at the lower end of the observation tube facing the dust bag; an observation component for observing the state inside the clean air chamber of the dust collector is installed in the observation tube.

[0014] Preferably, a driving cylinder is provided on both sides of the fixed arm in the clean air chamber of the dust collector, each driving cylinder is connected to a flip arm, and each flip arm is equipped with several laser emitters.

[0015] Preferably, a group of foldable laser emitting assemblies are installed on the cover of the side panels perpendicular to the clean air chamber of the dust collector, and the laser emitter of each foldable laser emitting assembly emits a laser that forms a U-shaped cross light column at the dust bag opening.

[0016] Preferably, the observation component is a camera, which is connected to a display screen, and the laser conditions in the clean air chamber of the dust collector can be viewed through the display screen.

[0017] Preferably, the observation component is composed of two plane mirrors with an angle of 45 degrees to the horizontal. The two plane mirrors are parallel to each other and both form an angle of 45 degrees to the horizontal direction.

[0018] Preferably, a sealing sleeve is provided between the fixed arm and the observation tube and the upper cover.

[0019] Preferably, the laser emitter is mounted on a laser emitter mounting seat, and the laser emitter mounting seat is fixedly mounted in the flip arm.

[0020] Preferably, a cooling air duct is provided on the laser emitter mounting base.

[0021] The advantages and technical effects of this utility model are as follows: First, the device uses a folded laser emission assembly to form a rectangular cross-beam that fully covers the dust bag area, improving the comprehensiveness and accuracy of detection. The precise arrangement of the laser beams ensures that even the smallest damage can be quickly detected, effectively preventing dust from escaping.

[0022] Secondly, the device's operating principle is based on the natural laws of airflow, requiring no additional power source, reducing energy consumption and maintenance costs. Furthermore, the online detection design allows the dust collector to be tested in real time during normal operation without downtime, significantly improving production efficiency.

[0023] Furthermore, the device monitors laser changes in real time using a camera or other photoelectric sensor, enabling it to quickly locate damaged bags. This provides clear guidance to maintenance personnel and reduces troubleshooting and repair time. This rapid response ensures stable dust collector operation and reduces the risk of production interruptions due to bag damage.

[0024] Finally, the device is highly reliable and stable, capable of long-term stable operation in harsh industrial environments. Its compact structure and simple installation make it easy to integrate with existing dust collectors, providing users with a convenient user experience.

[0025] In summary, an online bag damage detection device for dust collector has become an important tool to ensure the normal operation of dust collector and improve production efficiency with its comprehensive, accurate, efficient and reliable detection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the installation structure of the utility model;

[0027] Figure 2 This is a schematic structural diagram of the foldable laser emission assembly of the utility model in the open state;

[0028] Figure 3 This is a schematic diagram of the structure of the foldable laser emission assembly of the utility model in the flipped storage state;

[0029] Figure 4 It is the distribution diagram of the rectangular laser beam emitted by the folded laser emission assembly;

[0030] Figure 5 It is a schematic diagram of the structure of the plane mirror setting in the observation tube.

[0031] In the figure, 10, dust collector clean air chamber; 101, upper cover; 20, foldable laser emitting assembly; 201, fixed arm; 202, driving cylinder; 203, flip arm; 204, laser emitter; 205, rectangular laser column; 206, observation tube; 207, sealing sleeve; 208, laser emitter mounting base; 209, cooling air duct; 30, camera; 31, display screen; 32, plane mirror. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] See also Figures 1 to 4 An online bag breakage detection device for a dust collector includes a foldable laser emitting assembly 20 mounted on the upper cover 101 of the dust collector's clean air chamber 10. The foldable laser emitting assembly is located on a side panel of the dust collector's clean air chamber. This ensures that the foldable laser emitting assembly can accurately and stably point at the dust collector bag to facilitate detection of bag breakage. When testing is not required, a sealing cover is detachably mounted on the upper cover to seal the mounting hole of the foldable laser emitting assembly. When testing is required, the sealing cover is first removed, and then the foldable laser detection assembly is inserted into the dust collector's clean air chamber.

[0034] The foldable laser emitting assembly 20 comprises: a fixed arm 201, which is vertically mounted on the upper cover 101 of the dust collector clean air chamber, and the lower end of the fixed arm is inserted into the dust collector clean air chamber;

[0035] The driving cylinder 202 is hingedly mounted on the lower end of the fixed arm, and the piston rod of the driving cylinder is hingedly connected to the flip arm 203. The flip arm can flip under the drive of the driving cylinder. The flip arm can flip flexibly through the drive of the driving cylinder, which is convenient for adjusting the position and angle of the laser emitter and improving the flexibility and accuracy of detection. When inserting or removing, the driving cylinder drives the flip arm to flip and store on the side of the fixed arm.

[0036] The laser emitter 204 is mounted on the dust bag side of the flip arm and emits a rectangular laser beam 205. This beam is positioned between two adjacent rows of dust bags. The lower edge of the rectangular laser beam is flush with the upper surface of the dust bag mounting plate and no higher than the bag opening. The upper edge of the rectangular laser beam is approximately 100 mm above the bag opening. The laser emitter that emits the rectangular laser beam is a known electronic component that can be purchased commercially or customized as needed. Its operating principle requires the addition of an appropriate optical system after the laser emitting element (laser diode), such as a cylindrical mirror or grating, to shape the beam and achieve the desired rectangular laser beam. Compared to a circular laser beam, the rectangular laser beam can cover critical areas of the dust bag. If the bag is damaged, the laser beam will be affected, making it easier to detect damage quickly.

[0037] Observation tube 206, which is installed on the upper cover, and the observation port at the lower end of the observation tube is facing the dust bag; an observation component for observing the state of the dust collector's clean air chamber is installed in the observation tube. This application is mainly used to observe the refraction of the rectangular laser in the dust collector's clean air chamber when it irradiates the dust that penetrates the damaged bag.

[0038] Preferably, a drive cylinder 202 is provided on both sides of the fixed arm in the dust collector's clean air chamber. Each drive cylinder is connected to a flip arm 203, and each flip arm is equipped with several laser emitters 204. Multiple laser emitters can simultaneously detect all dust bags in the dust collector's clean air chamber, improving detection efficiency; simultaneous detection on both sides ensures comprehensive detection.

[0039] Preferably, a set of foldable laser emitting assemblies is installed on the cover of the side panels perpendicular to the clean air chamber of the dust collector. The laser emitted by the laser emitter of each foldable laser emitting assembly forms a U-shaped cross-beam at the opening of the dust bag. The U-shaped cross-beam design ensures that more dust bag areas are covered by the laser, which greatly improves the comprehensiveness of the detection. When a dust bag is damaged, the escaping dust will immediately interact with the laser in the cross-beam, causing the laser to refract and change color. This rapid change can be immediately captured, and the damaged bag can be quickly located through the observation system, providing maintenance personnel with clear maintenance guidance.

[0040] Preferably, the observation member is a camera 30, which is connected to a display screen 31, through which the laser condition in the clean air chamber of the dust collector can be observed. The camera can directly observe the laser condition in the clean air chamber of the dust collector, and timely detect bag damage, thereby increasing the comprehensiveness of the detection.

[0041] Preferably, see Figure 5The observation component is composed of two plane mirrors 32 with a 45-degree angle to the horizontal. The two plane mirrors are parallel to each other and both form a 45-degree angle with the horizontal direction. The observation is achieved by the principle of periscope. The laser situation in the clean air chamber of the dust collector can be directly observed, and bag damage can be discovered in time, thereby increasing the comprehensiveness of the detection.

[0042] Preferably, a sealing sleeve 207 is provided between the fixed arm and the observation tube and the upper cover to prevent atmospheric air from entering the dust collector's clean air chamber and causing damage to the dust bag due to alternating hot and cold conditions. Since the dust bag operates at a high temperature, sudden contact with room temperature air can easily cause thermal expansion and contraction. This also prevents incoming airflow from causing disturbances that could interfere with the stability of the rectangular laser.

[0043] Preferably, the laser emitter 203 is mounted on a laser emitter mounting base 208, which is fixedly mounted within the flip arm for easy installation and replacement. A cooling air duct 209 is provided on the laser emitter mounting base to ensure stable operation and extend the service life of the laser emitter. The cooling air duct effectively dissipates heat to prevent overheating and damage to the laser emitter.

[0044] Working Principle of the Utility Model: This utility model relates to a dust collector detection device, specifically a dust bag damage detection device based on laser technology. A lift valve is installed in front of the clean air chamber of the dust collector, which is connected to the fan to form a complete air circulation path.

[0045] A set of foldable laser emitting assemblies is mounted on the side panels of the clean air chamber, preferably perpendicular to the direction of bag arrangement. Each laser emitter in this assembly emits laser light, which forms a rectangular cross-beam near the dust bag opening. The design of this rectangular beam is crucial: one side is in close contact with the panel where the bags are mounted, ensuring a complete gap between the laser beam and the bag opening; the other side is slightly higher than the bag opening, ensuring that airflow, regardless of its direction of flow, passes through the laser beam.

[0046] When the fan is turned on, the air is pulled along the outer wall of the bag toward the bag opening. Since air always takes the shortest path, when it exits the bag opening, it flows directly toward the poppet valve, rather than upward or in other directions. This ensures that all air exiting the bag opening passes through the laser beam's coverage area.

[0047] Under normal circumstances, the laser beam remains stable and unchanged. However, if a bag is damaged, a dust-laden airflow will escape through the damaged area. This dust-laden airflow will interact with the laser light as it passes through the laser beam, causing it to refract or scatter, and may even change its color or intensity.

[0048] To detect these changes, cameras or other photoelectric sensors can be installed near the laser beam. These sensors monitor laser fluctuations in real time and transmit the data to the control system for analysis. Once the control system detects a significant change in the laser beam, it can determine that a bag is damaged and accurately locate the damaged bag.

[0049] In summary, the working principle of this utility model is to install a foldable laser emitting assembly on the side panels of the clean air chamber to form a rectangular cross-beam. The airflow generated by the fan guides the dust-laden airflow into the area covered by the laser beam. When the bag is damaged, the dust-laden airflow passes through the laser beam and interacts with the laser, thereby being detected and located. This detection method is highly sensitive and accurate, enabling timely detection and repair of bag damage, ensuring the normal operation and dust removal efficiency of the dust collector.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An online bag breakage detection device for a dust collector, comprising a foldable laser emitting assembly mounted on the upper cover of the dust collector clean air chamber, the foldable laser emitting assembly being located on a side panel of the dust collector clean air chamber; The folded laser emission assembly comprises: A fixed arm, wherein the fixed arm is vertically mounted on the upper cover of the dust collector clean air chamber, and the lower end of the fixed arm is inserted into the dust collector clean air chamber; A driving cylinder is hingedly mounted on the lower end of the fixed arm, and a piston rod of the driving cylinder is hingedly connected to the flip arm. The flip arm can perform a flipping action under the drive of the driving cylinder; A laser emitter is provided on the dust bag side of the flip arm. The laser emitter can emit a rectangular laser column. The rectangular laser column is located between two adjacent rows of dust bags. The lower edge of the rectangular laser column is flush with the upper surface of the dust bag mounting plate and is not higher than the dust bag opening. An observation tube is installed on the upper cover, and an observation port at the lower end of the observation tube faces the dust bag; an observation component for observing the state of the clean air chamber of the dust collector is installed in the observation tube.

2. The online bag damage detection device for a dust collector according to claim 1, characterized in that: A driving cylinder is provided on both sides of the fixed arm in the clean air chamber of the dust collector. Each driving cylinder is connected to a flip arm, and each flip arm is equipped with several laser emitters.

3. The online bag damage detection device for a dust collector according to claim 1, characterized in that: A set of folding laser emitting assemblies are installed on the cover of the side panels perpendicular to the clean air chamber of the dust collector. The laser emitted by the laser emitter of each folding laser emitting assembly forms a U-shaped cross light column at the dust bag opening.

4. The online bag damage detection device for a dust collector according to claim 1, characterized in that: The observation component is a camera, which is connected to a display screen, and the laser conditions in the clean air chamber of the dust collector can be viewed through the display screen.

5. The online bag damage detection device for a dust collector according to claim 1, characterized in that: The observation component is composed of two plane mirrors with an angle of 45 degrees to the horizontal. The two plane mirrors are parallel to each other and both form an angle of 45 degrees to the horizontal direction.

6. The online bag damage detection device for a dust collector according to claim 1, characterized in that: A sealing sleeve is provided between the fixed arm and the observation tube and the upper cover.

7. The online bag damage detection device for a dust collector according to claim 1, characterized in that: The laser emitter is mounted on a laser emitter mounting seat, and the laser emitter mounting seat is fixedly mounted in the flip arm.

8. The online bag damage detection device for a dust collector according to claim 7, characterized in that: The laser transmitter mounting seat is provided with a cooling air duct.

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