Environment-friendly dust removal equipment for electric power engineering construction

Abstract

The invention relates to the technical field of environment-friendly dust removal equipment, in particular to environment-friendly dust removal equipment for electric power engineering construction. Comprising a box body, the box body is fixedly connected and communicated with an air inlet pipe and an air exhaust unit, a fixed plate is fixedly connected in the box body, the fixed plate is located between the air inlet pipe and the air exhaust unit, the fixed plate is rotatably provided with a plurality of rotating plates, the rotating plates are rotatably provided with a plurality of rotating sleeves, and the rotating sleeves are provided with dust collecting bags; a first rotating shaft is rotationally arranged at the top of the box body, a rotating wheel is fixedly connected to the first rotating shaft, the rotating wheel is in extrusion fit with the rotating plate, a driving motor is fixedly connected to the top of the box body, and an output shaft of the driving motor is fixedly connected with the first rotating shaft. The rotating plate drives the dust collection bag to revolve, so that all parts of the bag in the circumferential direction are in uniform contact with air flow, and the problems of non-uniform stress and non-uniform dust attachment of the bag of the existing equipment are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of environmental dust removal equipment technology, and in particular to an environmental dust removal equipment for power engineering construction. Background Technology

[0002] With the development of the energy conservation and environmental protection industry, power engineering construction is transforming towards green and low-carbon practices, making dust control crucial for implementing environmental protection concepts and green construction standards. The large amounts of dust generated during processes such as cable trench excavation and equipment cutting not only affect construction accuracy and the working environment but also cause air pollution, failing to meet dust emission control requirements. Therefore, efficient and environmentally friendly dust removal equipment is necessary. Baghouse dust collectors, due to their simple structure, stable filtration, low energy consumption, and lack of secondary pollution, meet the needs of energy conservation and environmental protection and are widely used in construction dust control. Their core function is to intercept dust-laden airflow through filter bags, achieving dust collection and air purification.

[0003] In existing baghouse dust collectors, the filter bags are typically suspended in an array inside the housing, with dust-laden gas being blown horizontally towards the bag array directly from the inlet pipe on one side of the housing. Due to the fixed position of the bags and the directional nature of the airflow, the airflow distribution within the housing is severely uneven: the surface of the bags on the windward side experiences intense airflow scouring, while the airflow velocity in the leeward side is lower, sometimes even forming stagnant eddies. This uneven airflow distribution results in excessive dust accumulation and overloading of the bags on the windward side, while the bags on the leeward side remain idle or inefficiently filtered because dust does not easily adhere to them. Over time, the bags on the windward side are prone to damage, leading to shorter replacement cycles. This not only increases maintenance costs and downtime, but the solid waste generated from frequent bag replacements also fails to meet resource recycling requirements. Summary of the Invention

[0004] To overcome the above-mentioned technical problems, the present invention provides an environmentally friendly dust removal device for power engineering construction.

[0005] The technical solution is: an environmentally friendly dust removal device for power engineering construction, including a housing, wherein an air inlet pipe and an air extraction unit are fixedly connected and connected to the housing, the air extraction unit is electrically connected to a load detection element for detecting its working load, a fixed plate is fixedly connected inside the housing, and the fixed plate is located between the air inlet pipe and the air extraction unit, the fixed plate is rotatably equipped with multiple rotating plates, and multiple rotating sleeves are rotatably equipped on the rotating plates, and dust collector bags are installed on the rotating sleeves; The top of the housing is rotatably mounted on a first rotating shaft, to which a rotating wheel is fixedly connected. The rotating wheel is pressed against the rotating plate for power transmission between them. A drive motor is fixedly connected to the top of the housing, and the output shaft of the drive motor is fixedly connected to the first rotating shaft. The housing is equipped with a control unit, which is electrically connected to the load detection element and the drive motor. The load detection element is used to collect electrical signals characterizing the working load of the extraction unit. The control unit is configured to adjust the output power of the drive motor according to the electrical signals. The rotating sleeve is equipped with a support unit, which provides axial restraint on the lower part of the dust collector bag and radially expands it.

[0006] Furthermore, the fixed plate is fixedly connected to a guide plate, which is directly opposite the connection port between the air intake pipe and the housing. The guide plate is arc-shaped and has multiple inclined holes.

[0007] Furthermore, the support unit includes: The support frame is slidably disposed inside the corresponding dust collector bag; Two elastic rods are fixed to the support frame. The rotating sleeve has two symmetrically distributed stepped surfaces. The elastic rods are elastically engaged below the stepped surfaces of the rotating sleeve to restrict the movement of the support frame relative to the rotating sleeve.

[0008] Furthermore, the fixed plate is fixedly connected to multiple fixed brackets, and a gear ring is fixedly connected between two adjacent fixed brackets. The number of gear rings is the same as the number of rotating plates, and the central axis of the gear ring coincides with the central axis of the adjacent rotating plate. The rotating sleeve is fixedly connected to a gear, and the gear meshes with the adjacent gear ring.

[0009] Furthermore, it also includes multiple sets of cleaning units, each set on a corresponding rotating plate, used to clean impurities adhering to the dust collector bag. Each cleaning unit includes: A rotating frame is fixed to the rotating plate. The rotating frame has multiple rectangular openings that are circumferentially equidistant, and the rectangular openings on the rotating frame face the dust collector bag. Multiple elastic strips are fixed to the rotating frame. The number of elastic strips is the same as the number of dust collector bags on the same rotating plate. The elastic strips are in elastic contact with the outer surface of the adjacent dust collector bags.

[0010] Furthermore, the rotating frame is rotatably provided with a second rotating shaft, which penetrates the housing and is rotatably connected to it. The second rotating shaft is driven by a sprocket and a chain. A circular plate is fixedly connected to the second rotating shaft, and a plurality of inclined plates are fixedly connected to the circular plate at equal intervals in the circumference. The circular plate and the inclined plates are all located inside the rotating frame.

[0011] Furthermore, the transmission ratio between the first rotating shaft and the second rotating shaft is 1:1.5 to 1:3, and the rotational speed of the second rotating shaft is greater than that of the first rotating shaft.

[0012] Furthermore, the second rotating shaft is fixedly connected to a helical blade, and the inclined plate is located between the adjacent rotating frame and the adjacent helical blade.

[0013] Furthermore, it also includes a compression unit disposed on all of the support frames, the compression unit being used to keep all of the dust collector bags taut, the compression unit comprising: Multiple sliding members are slidably disposed within their respective support frames, and each sliding member is fixedly connected to an adjacent support frame by a spring; Multiple support rods are respectively fixed to adjacent sliding members, and the support rods are used to compress adjacent dust collector bags; A sliding frame is slidably disposed on the upper part of the housing, and the sliding frame is used to press all the sliding parts; An electric push rod is fixed to the top of the housing, and the telescopic end of the electric push rod is fixed to the sliding frame, which is used to simultaneously press the upper surface of all the sliding parts.

[0014] The beneficial effects of this invention are: 1. High filtration efficiency and uniform dust adhesion, effectively improving purification effect: The rotating plate drives the dust collector bag to revolve, and the rotating sleeve meshes with the toothed ring to drive the bag to rotate, ensuring that all parts of the bag are evenly contacted by airflow. This effectively improves the problems of uneven force on the bag and uneven dust adhesion in existing equipment, and avoids energy waste caused by local inefficient filtration. At the same time, the control unit dynamically adjusts the output power of the drive motor according to the feedback of the load detection element, adapts to the load changes of the air extraction unit, adjusts energy consumption as needed, further optimizes the filtration effect, ensures that construction dust is efficiently intercepted and purified, reduces dust emissions, and meets the dust control standards of the energy-saving and environmental protection industry.

[0015] 2. Enables continuous and stable dust removal without shutting down the machine: The cleaning unit scrapes dust through continuous friction between the elastic strip and the filter bag, and uses the negative pressure adsorption of the inclined plate to remove dust. Combined with the downward guiding effect of the spiral blades, the cleaning operation can be carried out simultaneously during normal filtration. This effectively reduces dust accumulation and clogging of filter holes, extends the effective filtration time of the filter bag, significantly reduces the frequency of downtime for dust removal, avoids energy consumption during restart, and reduces filter bag replacement and solid waste generation. This meets the requirements of resource recycling and ensures green and efficient dust removal operations.

[0016] 3. Flexible and adjustable dust removal effect, taking into account both filtration and bag protection: The squeezing unit can be selectively activated according to actual dust removal needs. When activated, the support rod squeezes the bag to keep it taut, improving dust removal efficiency; when closed, the bag remains naturally taut, reducing wear. It can enhance the dust removal effect when needed, and effectively protect the bag during regular filtration, which helps to extend the service life of the bag and reduce maintenance costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the housing and air intake pipe of the present invention; Figure 3 This is a cross-sectional view of the fixed plate and rotating plate of the present invention; Figure 4 This is a three-dimensional structural diagram of the rotating sleeve and dust collector bag of the present invention; Figure 5 This is a cross-sectional view of the rotating sleeve and dust collector bag of the present invention; Figure 6 This is a three-dimensional structural diagram of the dust collector bag and rotating frame of the present invention; Figure 7 This is a three-dimensional structural diagram of the circular plate and helical blades of the present invention; Figure 8 This is a cross-sectional view of the support frame and sliding member of the present invention.

[0018] Reference numerals: 1. Box body; 101. Ash discharge port; 2. Air inlet pipe; 201. Guide plate; 3. Air extraction unit; 4. Fixed plate; 5. Rotating plate; 6. Rotating sleeve; 7. Dust collector bag; 8. First rotating shaft; 9. Rotating wheel; 10. Drive motor; 11. Support frame; 12. Elastic rod; 13. Fixed frame; 14. Gear ring; 15. Gear; 17. Rotating frame; 18. Elastic strip; 19. Second rotating shaft; 20. Circular plate; 21. Inclined plate; 22. Spiral blade; 23. Sliding component; 24. Support rod; 25. Sliding frame; 26. Electric push rod. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings. Example 1

[0020] An environmentally friendly dust removal device for power engineering construction, referring to Figures 1-5 As shown, the specific structure of the equipment is as follows: The equipment is equipped with a housing 1 to carry various functional components. An observation port is provided at the front of the housing 1, and a dust discharge port 101 for installing a control valve is provided at the bottom of the housing 1. An air inlet pipe 2 and an air extraction unit 3 are fixedly connected and interconnected on the housing 1. The air inlet pipe 2 is used to introduce the dust-laden airflow generated during construction, and the air extraction unit 3 is used to discharge the filtered clean airflow. A load detection element is electrically connected to the air extraction unit 3. This element is specifically used to collect electrical signals that characterize the real-time working load of the air extraction unit 3. Inside the housing 1, a fixed plate 4 is fixedly installed between the air inlet pipe 2 and the extraction unit 3. This plate serves to separate the airflow and provide support for subsequent rotating components. Three guide plates 201 are fixedly connected to the fixed plate 4. These guide plates 201 face the connection between the air inlet pipe 2 and the housing 1, and have an arc-shaped structure with multiple inclined holes. These holes divert and buffer the dust-laden airflow entering the housing 1, preventing the airflow from directly impacting the filter components. The fixed plate 4 also has circumferentially spaced guide plates. The system comprises four rotating plates 5, each with six circumferentially spaced rotating sleeves 6. Each rotating sleeve 6 is fitted with a dust collector bag 7 for filtering dust. A first rotating shaft 8 is rotatably mounted on the top of the housing 1, with a rotating wheel 9 fixedly connected to its lower end. The rotating wheel 9 is connected to each rotating plate 5 via a transmission connection, enabling the rotating plates 5 to rotate synchronously. A drive motor 10 is also fixedly mounted on the top of the housing 1, with its output shaft fixedly connected to the first rotating shaft 8, providing stable power for the rotation of the first rotating shaft 8. In addition, a control unit is configured on the housing 1, which is electrically connected to the load detection element and the drive motor 10. Its core function is to flexibly adjust the output power of the drive motor 10 based on the electrical signal collected by the load detection element, ensuring that the equipment's operating status is precisely matched with the workload of the extraction unit 3. Each rotating sleeve 6 is equipped with a corresponding support unit, which provides axial support to the lower part of the dust collector bag 7 and radially expands the bag, ensuring that the bag is always in a stable filtration configuration.

[0021] Reference Figures 2-5As shown, the specific structure of the above-mentioned support unit is as follows, which is individually configured for each rotating sleeve 6 to ensure the support effect on the dust collector bag 7: The support unit mainly consists of a support frame 11 and two elastic rods 12. The support frame 11 is slidably embedded inside the corresponding dust collector bag 7, and can provide support from the inside of the bag; the two elastic rods 12 are symmetrically fixedly connected to the support frame 11. Correspondingly, the rotating sleeve 6 is provided with two symmetrically distributed stepped surfaces. The elastic rods 12 can be elastically engaged with the corresponding stepped surfaces of the rotating sleeve 6. Through this engaging method, the axial movement of the support frame 11 relative to the rotating sleeve 6 can be effectively restricted, ensuring the support stability of the support frame for the dust collector bag 7. At the same time, four fixed frames 13 are fixedly connected to the fixed plate 4. A gear ring 14 is fixedly connected between two adjacent fixed frames 13, and the central axis of each gear ring 14 coincides with the central axis of the adjacent rotating plate 5. A gear 15 is fixedly connected to each rotating sleeve 6. The gear 15 meshes with the adjacent gear ring 14, and can drive the rotating sleeve 6 to rotate synchronously when the rotating plate 5 rotates.

[0022] The specific working principle is as follows: After the equipment is started, the control unit issues a control command to drive the extraction unit 3 to start working. After the extraction unit 3 starts, it generates a stable negative pressure. Under the action of negative pressure, the dust-laden airflow generated during the power engineering construction is sucked in and smoothly enters the box 1 through the air inlet pipe 2. The guide plate 201 (arc-shaped and with multiple inclined holes) directly opposite the connection between the air inlet pipe 2 and the box 1 can effectively divert and buffer the incoming dust-laden airflow, preventing the high-speed airflow from directly scouring the dust collector bag 7 and causing local damage. At this time, the dust collector bag 7 maintains a regular cylindrical state under the support of the support frame 11, effectively ensuring that the filter area of ​​the bag is fully expanded. When the dust-laden airflow passes through the filter layer of the bag, the dust particles in the airflow are intercepted by the bag and adhere to its surface. The clean airflow after filtration is discharged from the box 1 through the extraction unit 3, realizing the initial dust purification.

[0023] During the above filtration process, the load detection element, which is electrically connected to the air extraction unit 3, continuously collects its working load electrical signal in real time and transmits the collected signal synchronously to the control unit. The control unit analyzes and processes the received load electrical signal. When the load electrical signal reaches a preset threshold, the control unit will automatically control the drive motor 10 to start and work for a set duration.

[0024] After the drive motor 10 starts, its output shaft drives the first rotating shaft 8 and the rotating wheel 9 to rotate synchronously. The rotating wheel 9 drives the four rotating plates 5 to rotate through the transmission action. When the rotating plates 5 rotate, they drive the rotating sleeve 6, dust collector bags 7, support frame 11 and other components on them to rotate synchronously in the circumferential direction. This changes the spatial arrangement of the six dust collector bags 7 on the four rotating plates 5, making it easier for the dust-laden airflow to pass through all the dust collector bags 7 evenly. This avoids the problem of uneven force on the bags and uneven dust adhesion. By making the airflow and the bags more evenly contact each other, the risk of premature damage to the bags due to local overload is effectively reduced. This reduces the frequency of bag replacement and the corresponding solid waste generation, which meets the environmental protection requirements of resource conservation and recycling.

[0025] Meanwhile, as the gear ring 14 on the fixed plate 4 meshes with the gear 15 on the rotating sleeve 6, the rotating sleeve 6, the dust collector bag 7 and the support frame 11 will also rotate synchronously as the rotating plate 5 rotates circumferentially, further assisting the dust-laden airflow to pass evenly through all parts of the dust collector bag 7, ensuring that the dust is evenly attached to the surface of the dust collector bag 7, and improving the filtration effect.

[0026] Furthermore, during operation, the drive motor 10 dynamically adjusts its output power based on the load feedback from the load detection element, thereby precisely controlling the rotation speed of the first rotating shaft 8. This achieves precise matching between the equipment's operating status and the load of the extraction unit 3. This on-demand power adjustment control method avoids the ineffective energy loss caused by the continuous high-power operation of the drive motor 10, significantly improving the equipment's operating efficiency. When the rotation speed of the first rotating shaft 8 increases, the circumferential rotation speed and the rotation speed of the dust collector bag 7 also increase simultaneously. During the circumferential rotation of the bag, the gas inside the housing 1 is agitated to form a vortex. The centrifugal force generated by this vortex will throw some dust particles in the airflow away from the dust collector bag 7, effectively reducing the amount of dust adhering to the surface of the bag, extending the effective filtration time of the dust collector bag 7, and reducing the cleaning frequency, thereby indirectly reducing the energy and material consumption associated with the cleaning operation.

[0027] If maintenance or replacement of the dust collector bag 7 is required during equipment downtime, first remove the top cover of the housing 1, then disengage the elastic rod 12 from the stepped surface of the rotating sleeve 6, and then pull the support frame 11 out of the dust collector bag 7. The dust collector bag 7 can then be removed for maintenance or replacement. After maintenance or replacement, reassemble the equipment by reversing the steps described above to reset the equipment and ensure its normal operation. Example 2

[0028] Based on Example 1, referring to Figure 4 and Figure 6As shown, to achieve timely cleaning of dust on the surface of the dust collector bag 7, the equipment also includes multiple cleaning units. Each cleaning unit corresponds to a rotating plate 5 and is specifically used to remove dust and impurities adhering to the surface of the dust collector bag 7. The specific structure of the cleaning unit includes a rotating frame 17 and six elastic strips 18: the rotating frame 17 is fixedly connected to the corresponding rotating plate 5 and rotates synchronously with the rotating plate 5. The rotating frame 17 has six rectangular openings that are circumferentially equidistantly distributed. These rectangular openings face the corresponding dust collector bag 7, providing a channel for dust removal operations. The six elastic strips 18 are evenly fixedly connected to the rotating frame 17, and each elastic strip 18 is in contact with the surface of the adjacent dust collector bag 7, and can remove dust from the surface of the bag through friction.

[0029] Reference Figures 2-4 and Figure 7 As shown, a second rotating shaft 19 is rotatably mounted on the rotating frame 17. The upper part of the second rotating shaft 19 penetrates the wall of the housing 1 and is rotatably connected to the housing 1 to ensure the stability of the rotation process. The second rotating shaft 19 and the first rotating shaft 8 are connected by a sprocket and a chain, and the transmission ratio between the two is 1:1.5 to 1:3. Through this transmission design, the rotation speed of the second rotating shaft 19 can be higher than that of the first rotating shaft 8, providing power support for efficient dust removal. A circular plate 20 is fixedly connected to the second rotating shaft 19, and six inclined plates 21 are fixedly connected to the circular plate 20 at equal intervals around the circumference. The circular plate 20 and all the inclined plates 21 are located inside the rotating frame 17, which can generate airflow disturbance during rotation. In addition, a spiral blade 22 is also fixedly connected to the second rotating shaft 19. The installation position of the inclined plate 21 is between the adjacent rotating frame 17 and the adjacent spiral blade 22, realizing the coordinated cooperation of dust removal and dust diversion.

[0030] The working process of this embodiment follows that of Embodiment 1, and is described in detail as follows: During the continuous filtration process, when the output shaft of the drive motor 10 drives the first rotating shaft 8 to rotate, the rotating plate 5 will synchronously drive the rotating frame 17 fixed to it to rotate together, ensuring that the rectangular opening on the rotating frame 17 is always facing the dust collector bag 7, providing accurate positioning for the dust removal operation.

[0031] At the same time, the dust collector bag 7 rotates under the drive of the rotating sleeve 6, so that the elastic strip 18 on the rotating frame 17 continuously contacts and rubs against the surface of the rotating dust collector bag 7. Through the friction, the dust particles and caking impurities attached to the surface of the bag can be effectively scraped off, achieving preliminary dust removal.

[0032] In addition, the first rotating shaft 8 is connected to the second rotating shaft 19 by a sprocket and a chain, and the transmission ratio between the two is 1:1.5 to 1:3. This makes the rotation speed of the second rotating shaft 19 much higher than that of the first rotating shaft 8, thereby creating a stable speed difference between the rotating frame 17 and the second rotating shaft 19.

[0033] When the second rotating shaft 19 rotates at high speed, it will drive the adjacent circular plate 20, inclined plate 21 and spiral blade 22 fixed to it to rotate synchronously. During the high-speed rotation of the inclined plate 21, a negative pressure adsorption effect will be generated, driving the airflow outside the rotating frame 17 to enter the frame through the rectangular opening. Under this adsorption effect, the fine dust particles attached to the surface of the dust collector bag 7 can be adsorbed, further accelerating the separation of impurities on the surface of the bag and improving the dust removal effect.

[0034] At the same time, the spiral blades 22 rotate synchronously at high speed, which will generate a downward airflow guiding force, driving the gas in the rotating frame 17 and the dust that has been scraped off and adsorbed to flow downward together, so that most of the dust particles are suspended in the lower area of ​​the box 1, preventing the dust from re-adhering to the surface of the filter bag, thereby further extending the effective filtration time of the equipment, realizing the function of cleaning without stopping the machine, and ensuring that the dust removal operation is continuously and stably carried out.

[0035] This online dust removal mechanism avoids frequent equipment start-ups and shutdowns caused by downtime for dust removal. It not only reduces the impact energy consumption during restart but also maintains the stable operation of the extraction unit 3 under high-efficiency conditions. It avoids additional energy consumption caused by increased extraction load due to bag blockage. At the same time, timely removal of accumulated dust effectively slows down the clogging and aging of the bags, extends the overall service life of the dust collector bags 7, and reduces the frequency of replacing worn-out bags and the generation of solid waste. From the perspective of the entire life cycle, it reflects environmental protection and energy-saving benefits.

[0036] After the equipment has been working continuously for a period of time, the control valve at the ash discharge port 101 is opened. The dust suspended in the lower part of the box 1 will be discharged from the box 1 through the ash discharge port 101 under the action of gravity, thus completing the centralized collection of dust and ensuring the long-term stable operation of the equipment. Example 3

[0037] Based on Example 2, referring to Figure 2 , Figure 4 and Figure 8As shown, to ensure that the dust collector bags 7 remain taut during operation and improve filtration and dust removal efficiency, the equipment also includes a compression unit. This compression unit is installed on all support frames 11 and can tighten and limit all dust collector bags 7. The specific structure of the compression unit includes twenty-four sliding parts 23, twenty-four support rods 24, one sliding frame 25, and two electric push rods 26: all sliding parts 23 are slidably embedded in the corresponding support frames 11, and springs are fixedly connected between adjacent sliding parts 23 and their corresponding support frames 11 to achieve elastic reset; all support rods 24 are installed on adjacent sliding parts 23, and their function is to compress adjacent dust collector bags 7 to ensure that the bags are taut; the sliding frame 25 is slidably installed on the upper part of the housing 1 and can compress all sliding parts 23 simultaneously; the two electric push rods 26 are fixedly installed on the top of the housing 1, and their telescopic ends are fixedly connected to the sliding frame 25, which can drive the sliding frame 25 to slide up and down to compress all sliding parts 23.

[0038] The working process of this embodiment follows that of embodiment 2, and is described in detail as follows: During the cleaning of dust on the surface of the dust collector bag 7, the electric push rod 26 can be selectively activated according to the actual dust removal needs to achieve flexible adjustment of the dust removal effect. When the electric push rod 26 is activated, its telescopic end will drive the sliding frame 25 to slide smoothly downward along the guide structure on the upper part of the housing 1. During the downward movement of the sliding frame 25, all sliding parts 23 will be squeezed simultaneously. After the sliding parts 23 are squeezed, they will drive the support rod 24 fixed to them to move synchronously towards the adjacent dust collector bag 7, so that the support rod 24 tightly squeezes the bottom area of ​​the adjacent dust collector bag 7. Through the above squeezing action, it can be ensured that the dust collector bag 7 always remains taut, which facilitates the efficient removal of impurities attached to the dust collector bag 7 during the airflow adsorption process, thereby improving the dust removal efficiency and effect. When it is necessary to strengthen the dust removal effect, the squeezing function can be activated briefly, which can achieve a significant improvement in dust removal efficiency with low additional energy consumption, in line with the concept of precise energy-saving control.

[0039] If enhanced dust removal is not required, the electric push rod 26 can be turned off. At this time, the sliding part 23, under the elastic reset action of the spring between the adjacent support frame 11, drives the support rod 24 to detach from the surface of the filter bag, and the filter bag remains in a naturally tensioned state. This does not affect the normal filtration work, but also reduces the wear of the filter bag, extends the service life of the filter bag, and achieves flexible adaptation between filtration and dust removal.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An environmentally friendly dust removal device for power engineering construction, comprising a housing (1), wherein the housing (1) is fixedly connected to and connected to an air inlet pipe (2) and an air extraction unit (3), wherein the air extraction unit (3) is electrically connected to a load detection element for detecting its working load, wherein a fixed plate (4) is fixedly connected inside the housing (1), and the fixed plate (4) is located between the air inlet pipe (2) and the air extraction unit (3), wherein the fixed plate (4) is rotatably provided with a plurality of rotating plates (5), wherein a plurality of rotating sleeves (6) are rotatably provided on the rotating plates (5), and wherein dust removal bags (7) are installed on the rotating sleeves (6); Its features are, It also includes a first rotating shaft (8), which is rotatably mounted on the top of the housing (1). The first rotating shaft (8) is fixedly connected to a rotating wheel (9), which is pressed and engaged with the rotating plate (5) for power transmission between the two. The top of the housing (1) is fixedly connected to a drive motor (10), and the output shaft of the drive motor (10) is fixedly connected to the first rotating shaft (8). The housing (1) is provided with a control unit, which is electrically connected to the load detection element and the drive motor (10) respectively. The load detection element is used to collect electrical signals characterizing the working load of the air extraction unit (3). The control unit is configured to adjust the output power of the drive motor (10) according to the electrical signals. The rotating sleeve (6) is provided with a support unit, which is used to provide axial limit for the lower part of the dust collector bag (7) and to make it radially open.

2. The environmentally friendly dust removal equipment for power engineering construction according to claim 1, characterized in that, The fixed plate (4) is fixedly connected to a guide plate (201). The guide plate (201) is directly opposite the communication port between the air inlet pipe (2) and the box (1). The guide plate (201) is arc-shaped and has multiple inclined holes.

3. The environmental protection dust removal equipment for power engineering construction according to claim 1, characterized in that, The support unit includes: The support frame (11) is slidably disposed inside the corresponding dust collector bag (7); Two elastic rods (12) are fixed to the support frame (11). The rotating sleeve (6) has two symmetrically distributed stepped surfaces. The elastic rods (12) are elastically engaged below the stepped surfaces of the rotating sleeve (6) to restrict the movement of the support frame (11) relative to the rotating sleeve (6).

4. The environmental protection dust removal equipment for power engineering construction according to claim 3, characterized in that, The fixed plate (4) is fixedly connected to a plurality of fixed brackets (13), and a gear ring (14) is fixedly connected between two adjacent fixed brackets (13). The number of gear rings (14) is the same as the number of rotating plates (5), and the central axis of the gear ring (14) coincides with the central axis of the adjacent rotating plate (5). The rotating sleeve (6) is fixedly connected to a gear (15), and the gear (15) meshes with the adjacent gear ring (14).

5. The environmentally friendly dust removal equipment for power engineering construction according to claim 4, characterized in that, It also includes multiple cleaning units, each set on a corresponding rotating plate (5), which are used to clean impurities adhering to the dust collector bag (7). Each cleaning unit includes: The rotating frame (17) is fixed to the rotating plate (5). The rotating frame (17) has multiple rectangular openings that are equidistantly distributed in the circumferential direction. The rectangular openings on the rotating frame (17) are directly opposite the dust collector bag (7). Multiple elastic strips (18) are fixed to the rotating frame (17). The number of elastic strips (18) is the same as the number of dust collector bags (7) on the same rotating plate (5). The elastic strips (18) are in elastic contact with the outer surface of the adjacent dust collector bags (7).

6. The environmental protection dust removal equipment for power engineering construction according to claim 5, characterized in that, The rotating frame (17) is rotatably provided with a second rotating shaft (19), which penetrates the box (1) and is rotatably connected to it. The second rotating shaft (19) and the first rotating shaft (8) are driven by a sprocket and a chain. The second rotating shaft (19) is fixedly connected to a circular plate (20), and the circular plate (20) is fixedly connected to a plurality of inclined plates (21) that are circumferentially equidistant. The circular plate (20) and the inclined plates (21) are both located inside the rotating frame (17).

7. The environmentally friendly dust removal equipment for power engineering construction according to claim 6, characterized in that, The transmission ratio between the first rotating shaft (8) and the second rotating shaft (19) is 1:1.5 to 1:3, and the rotational speed of the second rotating shaft (19) is greater than that of the first rotating shaft (8).

8. The environmental protection dust removal equipment for power engineering construction according to claim 6, characterized in that, The second rotating shaft (19) is fixedly connected to a helical blade (22), and the inclined plate (21) is located between the adjacent rotating frame (17) and the adjacent helical blade (22).

9. The environmental protection dust removal equipment for power engineering construction according to claim 8, characterized in that, It also includes a squeezing unit disposed on all of the support frames (11), the squeezing unit being used to keep all of the dust collector bags (7) taut, the squeezing unit comprising: Multiple sliding members (23) are slidably disposed in the corresponding support frame (11), and a spring is fixed between the sliding member (23) and the adjacent support frame (11); Multiple support rods (24) are respectively fixed to adjacent sliding members (23), and the support rods (24) are used to squeeze adjacent dust collector bags (7). A sliding frame (25) is slidably disposed on the upper part of the housing (1), and the sliding frame (25) is used to press all the sliding parts (23). An electric push rod (26) is fixed to the top of the housing (1), and the telescopic end of the electric push rod (26) is fixed to the sliding frame (25), which is used to simultaneously press the upper surface of all the sliding parts (23).

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