A metal membrane dust removal device and its working method

Abstract

This invention discloses a metal membrane dust collector and its operating method, comprising a dust collector housing with a dust collection chamber and a cleaning chamber internally connected. A horizontally movable robotic arm is installed in the dust collection chamber, connected to a movable connecting plate. A metal membrane for filtration is disposed in the movable connecting plate, and guide wheels are mounted on the surface of the movable connecting plate. Guide rails are arranged in pairs within the space between the dust collection chamber and the cleaning chamber, with the guide wheels engaging with the guide rails. The robotic arm controls the movable connecting plate to rise or fall, and simultaneously controls the movable connecting plate to move into the cleaning chamber. This dust collector allows for flexible control of the lifting and transfer of the flexible membrane connecting plate in the metal membrane dust collector, enabling flexible control of the cleaning time. The equipment has low manufacturing costs, is easy to operate, and the frequent cleaning of the flexible metal membrane keeps it clean, prevents corrosion, improves the dust collection performance of the metal membrane dust collector, and extends the service life of the flexible metal membrane, reducing replacement costs.

Description

Technical Field

[0001] This invention relates to the field of metal membrane dust collector technology, and in particular to a metal membrane dust collector and its working method. Background Technology

[0002] Metal flexible membrane dust collection technology boasts advantages such as high temperature resistance, high dust collection efficiency, and good operational stability, leading to its widespread application in practical engineering projects. The metal flexible membrane filter bag is the core component of the dust collector, directly affecting the dust collection effect. In practical applications, metal flexible membrane filter bags are rarely replaced, leading to a large accumulation of dust over long-term use. This makes them susceptible to corrosion by acidic gases and difficult to clean. Metal membrane dust collectors typically use compressed air as power, employing a pulse-jet cleaning mechanism to release compressed air instantaneously and induce several times the amount of secondary airflow to be injected into the filter bag at high speed. This causes the filter bag to expand rapidly, vibrate, and deform, achieving the purpose of dust removal. However, after prolonged use, due to the porous, interwoven space of the metal fiber felt filter bag, dust gradually penetrates into the filter media. Some dust becomes embedded within these spaces and is difficult to remove with pulse-jet cleaning, resulting in reduced filter bag permeability and increased internal operating resistance of the dust collector. This can alter the dust collector's operating status and affect subsequent dust collection efficiency. Therefore, regular and timely cleaning of the filter bags can prevent corrosion, enhance dust collection efficiency, and extend the filter bag's lifespan. Summary of the Invention

[0003] The purpose of this invention is to provide a metal membrane dust collector with a built-in cleaning device that facilitates daily online cleaning, thereby solving the problems mentioned in the background art, such as the accumulation of large amounts of dust in flexible metal membrane filter bags on the market, which are difficult to clean, corroded, and damage to the metal membrane, affecting the subsequent dust removal effect and service life.

[0004] To solve the above-mentioned technical problems, the present invention provides a metal membrane dust removal device, comprising:

[0005] The dust removal shell has a dust removal chamber and a cleaning chamber inside, and the space between the dust removal chamber and the cleaning chamber is connected.

[0006] The dust removal chamber is equipped with a horizontally movable robotic arm, which is connected to a movable connecting plate. The movable connecting plate contains a metal membrane for filtration, and guide wheels are installed on the surface of the movable connecting plate.

[0007] The dust removal chamber and the cleaning chamber are equipped with paired guide rails, and the guide wheels are connected to the guide rails.

[0008] The robotic arm controls the moving connecting plate to rise or fall, and simultaneously controls the moving connecting plate to move into the cleaning chamber.

[0009] Optionally, the dust removal chamber is provided with an air inlet, an air outlet, and a dust outlet, and the cleaning chamber is provided with an ultrasonic vibrator, a blower, a water inlet, and a water outlet.

[0010] Optionally, the guide rail is disposed on the inner wall of the dust removal chamber and the cleaning chamber, and the movable connecting plate is provided with guide wheels at corresponding positions near the guide rail. The guide wheels are embedded in the guide rail so that the movable connecting plate can move along the direction of the guide rail.

[0011] Optionally, the dust removal housing is equipped with a moving mechanism for controlling the horizontal movement of the robotic arm.

[0012] Optionally, the air inlet is located on the side wall of the dust removal housing below the movable connecting plate, the air outlet is located on the top wall of the dust removal housing above the dust removal chamber, and the dust outlet is located at the bottom of the dust removal chamber.

[0013] Optionally, the ultrasonic oscillator is located at the bottom of the cleaning chamber, the blower is located at the top of the inner wall of the cleaning chamber, and the water inlet and the water outlet are located on both sides of the bottom side wall of the cleaning chamber.

[0014] Optionally, the bottom of the dust removal chamber is equipped with support legs for fixation.

[0015] Optionally, the connecting space between the dust removal chamber and the cleaning chamber is defined as the connecting chamber, and the height between the pairs of guide rails located in the connecting chamber is equal to the height of the movable connecting plate plus the height of the guide wheels disposed at the left and right ends of the movable connecting plate.

[0016] Optionally, the width between the pairs of guide rails located in the dust removal chamber and the cleaning chamber is equal to the length of the movable connecting plate plus the width of the guide wheels disposed at the left and right ends of the movable connecting plate.

[0017] To address the aforementioned technical problems, the present invention also provides a method for operating a metal membrane dust removal device, wherein the method is as follows:

[0018] Exhaust gas enters the dust removal chamber through the air inlet, passes through the metal membrane and is discharged from the air outlet. Dust cannot pass through the metal membrane and falls down and is discharged from the dust outlet.

[0019] The robotic arm drives the movable connecting plate to rise to the top along the guide rail. The moving mechanism controls the robotic arm to move the movable connecting plate laterally along the guide rail to the cleaning chamber. The robotic arm then drives the movable connecting plate to descend into the cleaning chamber.

[0020] The cleaning fluid enters the cleaning chamber through the inlet until it submerges or partially submerges the movable connecting plate. The ultrasonic vibrator is activated to remove dust from the metal membrane. The outlet is opened to drain the cleaning fluid, and the blower is turned on to dry the movable connecting plate.

[0021] The beneficial effects of the technical solution of this invention are:

[0022] This invention incorporates both a dust removal chamber and a cleaning chamber into existing dust removal equipment. This allows for direct cleaning of the metal membrane filter bags within the equipment during prolonged or frequent operation, preventing corrosion of the metal membrane due to lack of timely or effective cleaning, which would reduce dust removal efficiency and extend service life.

[0023] The dust removal equipment of the present invention can flexibly control the lifting and transfer of the flexible membrane connecting plate of the metal membrane dust collector, and can flexibly control the cleaning time. The equipment has low manufacturing cost and is easy to operate. Frequent cleaning of the metal flexible membrane can keep it clean, prevent corrosion, improve the dust removal performance of the metal membrane dust collector, and at the same time increase the service life of the metal flexible membrane and reduce replacement costs. Attached Figure Description

[0024] Figure 1 This is a diagram of a metal membrane dust collector equipped with a cleaning device.

[0025] In the diagram: 1. Dust collector housing; 2. Dust collector chamber; 3. Guide rail; 4. Guide wheel; 5. Metal membrane; 6. Moving connecting plate; 7. Robotic arm; 8. Air inlet; 9. Air outlet; 10. Dust outlet; 11. Cleaning chamber housing; 12. Ultrasonic vibrator; 13. Cleaning chamber; 14. Water inlet; 15. Water outlet; 16. Blower; 17. Connecting chamber. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Please see Figure 1 The diagram illustrates an embodiment of a metal membrane dust removal device, comprising a dust removal housing 1 with a dust removal chamber 2 and a cleaning chamber 13 (the cleaning chamber 13 has its own cleaning chamber shell 11 and is an ultrasonic cleaning chamber) internally, and the spaces between the dust removal chamber 2 and the cleaning chamber 13 are interconnected; a horizontally movable robotic arm 7 is installed in the dust removal chamber 2, and the robotic arm 7 is connected to a movable connecting plate 6, in which a metal membrane 5 for filtration is disposed, and guide wheels 4 are mounted on the surface of the movable connecting plate 6; guide rails 3 are arranged in pairs in the spaces between the dust removal chamber 2 and the cleaning chamber 13, and the guide wheels 4 are connected to the guide rails 3; the robotic arm 7 controls the movable connecting plate 6 to rise or fall, and simultaneously controls the movable connecting plate 6 to move into the cleaning chamber 13.

[0031] In this embodiment, the dust removal chamber 2 is provided with an air inlet 8, an air outlet 9 and a dust outlet 10, and the cleaning chamber 13 is provided with an ultrasonic vibrator 12, a blower 16, a water inlet 14 and a water outlet 15.

[0032] In this embodiment, the guide rail 3 is installed on the inner wall of the dust removal chamber 2 and the cleaning chamber 13. The movable connecting plate 6 is provided with guide wheels 4 at corresponding positions near the guide rail 3. The guide wheels 4 are embedded in the guide rail 3 so that the movable connecting plate 6 can move along the direction of the guide rail 3.

[0033] In this embodiment, a moving mechanism (not shown, and being prior art, is installed in the dust removal housing 1) to control the horizontal movement of the robotic arm 7.

[0034] In this embodiment, the air inlet 8 is located on the side wall of the dust removal housing 1 below the movable connecting plate 6, the air outlet 9 is located on the top wall of the dust removal housing 1 above the dust removal chamber 2, and the dust outlet is located at the bottom of the dust removal chamber 2.

[0035] In this embodiment, the ultrasonic oscillator 12 is located at the bottom of the cleaning chamber 13, the blower 16 is located at the top of the inner wall of the cleaning chamber 13, and the water inlet 14 and the water outlet 15 are located on both sides of the bottom side wall of the cleaning chamber 13.

[0036] In this embodiment, a support bracket for fixing is installed at the bottom of the dust removal chamber 2.

[0037] In this embodiment, the connecting space between the dust removal chamber 2 and the cleaning chamber 13 is defined as the connecting chamber 17. The height between the pairs of guide rails 3 in the connecting chamber 17 is equal to the height of the movable connecting plate 6 plus the height of the guide wheels 4 set at the left and right ends of the movable connecting plate 6.

[0038] In this embodiment, the width between the pairs of guide rails 3 located in the dust removal chamber 2 and the cleaning chamber 13 is equal to the length of the movable connecting plate 6 plus the width of the guide wheels 4 located at the left and right ends of the movable connecting plate 6.

[0039] The following description will further illustrate the characteristics and functions of the present invention.

[0040] In existing technologies, ordinary metal membrane dust collectors are used for dust removal in the industrial production of carbon fiber. The dust collection chamber is 5 meters high and 1.4 meters wide. It lacks guide wheels, guide rails, and robotic arms. Commonly used carbon fiber metal membrane dust collectors also lack post-dust cleaning devices. The filter bags have a service life of 30 months. The average dust removal efficiency during use is 99.2%.

[0041] This embodiment also provides a method for operating a metal membrane dust removal device, wherein the method is as follows:

[0042] Exhaust gas enters dust removal chamber 2 through air inlet 8, passes through metal membrane 5 and is discharged upward from air outlet 9. Dust cannot pass through metal membrane 5 and falls down and is discharged from dust outlet 10.

[0043] The robotic arm 7 drives the movable connecting plate 6 to rise to the top along the guide rail 3. The moving mechanism controls the robotic arm 7 to move the movable connecting plate 6 laterally along the guide rail 3 to the cleaning chamber 13. The robotic arm 7 then drives the movable connecting plate 6 to descend into the cleaning chamber 13.

[0044] The cleaning fluid enters the cleaning chamber 13 from the inlet 14 until it submerges or partially submerges the movable connecting plate 6. The ultrasonic oscillator 12 is activated to remove dust from the metal membrane 5. The outlet 15 is opened to drain the cleaning fluid. The blower 16 is turned on to dry the movable connecting plate 6.

[0045] Set the cleaning frequency to once every two weeks.

[0046] In this embodiment of the metal membrane dust removal equipment, the height of the movable connecting plate, the diameter of the guide wheels, the support height below the dust removal housing, and the height of the guide rail above the dust removal chamber are all the same. The maximum length of the robotic arm, the height of the dust removal chamber, the width of the connecting plate, and the width of the dust removal chamber are all the same as in the prior art. However, the cleaning frequency and the resulting effect are different from those in the prior art.

[0047] The main equipment parameters and the effects after implementation of the metal membrane dust removal equipment with a cleaning chamber are shown in Table 1.

[0048] Table 1. Main equipment parameters and effects of the metal membrane dust collector with cleaning device.

[0049] Cleaning frequency Dust removal efficiency Filter bag lifespan Existing technology / 70.2％ 30 months Example 1 Twice a month 99.8％ 45 months Example 2 Once a month 99.6％ 50 months Example 3 Once every two months 99.5％ 45 months Example 4 Once every three months 99.3％ 45 months Example 5 Once in June 99.2％ 40 months Example 6 Once a year 99.2％ 40 months

[0050] In summary, this invention, by simultaneously incorporating a dust collection chamber and a cleaning chamber into existing dust removal equipment, facilitates direct cleaning of the metal membrane filter bags within the equipment during prolonged or frequent operation. This prevents corrosion of the metal membrane due to lack of timely or effective cleaning, which can reduce dust collection efficiency and extend service life. The dust collection equipment of this invention allows for flexible control of the lifting and moving of the flexible membrane connecting plate in the metal membrane dust collector, enabling flexible control of cleaning time. The equipment has low manufacturing costs, is easy to operate, and frequent cleaning keeps the flexible metal membrane clean, prevents corrosion, improves the dust collection performance of the metal membrane dust collector, and extends the service life of the flexible metal membrane, reducing replacement costs.

[0051] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal membrane dust removal device, characterized in that, include: The dust removal shell has a dust removal chamber and a cleaning chamber inside, and the space between the dust removal chamber and the cleaning chamber is connected. The dust removal chamber is equipped with a horizontally movable robotic arm, which is connected to a movable connecting plate. The movable connecting plate contains a metal membrane for filtration, and guide wheels are installed on the surface of the movable connecting plate. The dust removal chamber and the cleaning chamber are equipped with paired guide rails, and the guide wheels are connected to the guide rails. The robotic arm controls the moving connecting plate to rise or fall, and simultaneously controls the moving connecting plate to move into the cleaning chamber; The guide rail is installed on the inner wall of the dust removal chamber and the cleaning chamber. The movable connecting plate is provided with guide wheels at corresponding positions near the guide rail. The guide wheels are embedded in the guide rail so that the movable connecting plate can move along the direction of the guide rail. The connecting space between the dust removal chamber and the cleaning chamber is defined as the connecting chamber. The height between the pairs of guide rails located in the connecting chamber is equal to the height of the movable connecting plate plus the height of the guide wheels located at the left and right ends of the movable connecting plate.

2. The metal membrane dust removal equipment according to claim 1, characterized in that, The dust removal chamber is equipped with an air inlet, an air outlet, and a dust outlet, while the cleaning chamber is equipped with an ultrasonic vibrator, a blower, a water inlet, and a water outlet.

3. The metal membrane dust removal equipment according to claim 1, characterized in that, The dust removal housing is equipped with a moving mechanism that controls the horizontal movement of the robotic arm.

4. The metal membrane dust removal equipment according to claim 2, characterized in that, The air inlet is located on the side wall of the dust removal housing below the movable connecting plate, the air outlet is located on the top wall of the dust removal housing above the dust removal chamber, and the dust outlet is located at the bottom of the dust removal chamber.

5. The metal membrane dust removal equipment according to claim 2, characterized in that, The ultrasonic oscillator is located at the bottom of the cleaning chamber, the blower is located at the top of the inner wall of the cleaning chamber, and the water inlet and the water outlet are located on both sides of the bottom side wall of the cleaning chamber.

6. The metal membrane dust removal equipment according to claim 1, characterized in that, The bottom of the dust removal chamber is equipped with support legs for fixation.

7. The metal membrane dust removal equipment according to claim 1, characterized in that, The width between the pairs of guide rails located in the dust removal chamber and the cleaning chamber is equal to the length of the movable connecting plate plus the width of the guide wheels located at the left and right ends of the movable connecting plate.

8. A method for operating a metal membrane dust collector, characterized in that, The metal membrane dust removal equipment described in any one of claims 1-7 is used, and its working method is as follows: Exhaust gas enters the dust removal chamber through the air inlet, passes through the metal membrane and is discharged from the air outlet. Dust cannot pass through the metal membrane and falls down and is discharged from the dust outlet. The robotic arm drives the movable connecting plate to rise to the top along the guide rail. The moving mechanism controls the robotic arm to move the movable connecting plate laterally along the guide rail to the cleaning chamber. The robotic arm then drives the movable connecting plate to descend into the cleaning chamber. The cleaning fluid enters the cleaning chamber through the inlet until it submerges or partially submerges the movable connecting plate. The ultrasonic vibrator is activated to remove dust from the metal membrane. The outlet is opened to drain the cleaning fluid, and the blower is turned on to dry the movable connecting plate.

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