Construction waste separating and purifying device for building and municipal engineering

By designing a construction exhaust gas purification device with a support base, circular cavity, top cavity, suction cavity, motor, dust suction fan blades, and locking structure, the problems of existing devices in terms of stability, environmental performance, and operation and maintenance costs have been solved, achieving efficient exhaust gas separation and purification and continuous operation.

CN121360439BActive Publication Date: 2026-07-24QIDONG MUNICIPAL GOVERNMENT INVESTMENT PROJECT ENGINEERING CONSTRUCTION CENTER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QIDONG MUNICIPAL GOVERNMENT INVESTMENT PROJECT ENGINEERING CONSTRUCTION CENTER
Filing Date
2025-10-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing construction waste gas purification devices are inadequate in terms of structural stability, environmental performance, operation and maintenance costs, and continuous operating efficiency, making it difficult to meet the high standards required for building and municipal engineering projects.

Method used

A purification device was designed, comprising a support base, a circular cavity, a top cavity, a suction cavity, a motor, dust-collecting fan blades, a dust-straining plate, and a locking structure. Through wind-assisted locking and mechanical locking, the stability and sealing of dust collection are ensured, reducing internal pollution and maintenance costs, and improving the continuous operating efficiency of the equipment.

Benefits of technology

It achieves efficient separation and purification of waste gas, reduces operation and maintenance costs, improves equipment stability and environmental performance, meets environmental emission standards, reduces the frequency of equipment downtime for cleaning, and enhances the continuity and overall efficiency of construction waste gas treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a construction waste gas separation and purification device for building and municipal engineering and belongs to the technical field of waste gas purification treatment. The device comprises a supporting base, the upper surface of the supporting base is fixedly connected with a circular cavity, the upper surface of the circular cavity is fixedly connected with a top cavity, the upper surface of the top cavity is provided with a rotating groove, the inside of the top cavity is provided with a suction cavity, the inside of the suction cavity is provided with a plurality of screening holes, the inside of the rotating groove is fixedly connected with a motor, the output end of the motor is fixedly connected with a lower rotating rod, the lower end of the lower rotating rod penetrates into the inside of the circular cavity and is fixedly connected with a plurality of dust suction fan blades; the storage locking part and other structures of the device form high-efficiency cooperation, the continuous operation efficiency of the equipment is obviously improved, the caked dust is broken by the broken blade, the fine dust is accurately dropped into the storage cavity through the powder leakage plate and the material receiving opening, and the stable locking of the storage cavity provides a reliable end point for the process.
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Description

Technical Field

[0001] This invention relates to waste gas purification technology, and more particularly to a construction waste gas separation and purification device for building and municipal engineering projects. Background Technology

[0002] Construction projects, particularly building and municipal engineering projects, generate large amounts of waste gas containing pollutants such as dust and harmful gases. This waste gas not only poses a serious threat to the health of construction workers but also adversely affects the surrounding environment. With increasing environmental awareness and stricter environmental regulations, the purification and treatment of construction waste gas has become an indispensable and crucial aspect of engineering construction. Currently, various construction waste gas purification devices are available on the market, but many problems still exist in practical applications. Traditional devices have poor dust collection structure stability. During operation, factors such as vibration can easily cause dust to spill, affecting collection efficiency, leading to internal contamination and increased cleaning difficulty. Furthermore, misalignment during material collection is also common, preventing some dust from accurately falling into the collection device, resulting in resource waste and secondary pollution. Furthermore, the environmental performance of traditional equipment needs further improvement. During dust collection, transportation, and cleaning, poor sealing performance easily leads to dust leakage, posing a potential threat to the construction environment and the health of operators, and making it difficult to meet increasingly stringent environmental emission standards. Moreover, the operation and maintenance costs of these devices are relatively high. Their complex locking and unlocking structures increase the technical threshold for maintenance, requiring professional personnel to operate them. Simultaneously, mechanical wear is severe, component lifespan is short, and replacement frequency is high, resulting in persistently high operation and maintenance costs. In addition, traditional equipment has low continuous operating efficiency. Frequent dust accumulation requires frequent shutdowns for cleaning, which seriously affects the continuity of waste gas purification. During peak construction periods, it often cannot meet the demand for waste gas treatment, thus hindering the smooth progress of the project. In summary, existing construction waste gas purification devices have certain shortcomings in terms of structural stability, environmental performance, operation and maintenance costs, and continuous operating efficiency, making it difficult to meet the high standards required for waste gas purification in building and municipal engineering projects. Therefore, developing a new type of construction waste gas separation and purification device that can solve the above problems is of great practical significance. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide a device that can operate continuously and stably during peak construction periods, thereby improving the continuity and overall treatment efficiency of exhaust gas purification and meeting the demand for efficient operation of exhaust gas purification equipment in building and municipal engineering projects. Another purpose of this invention is to reduce the amount of internal cleaning work of the equipment through efficient dust collection, thereby reducing the operation and maintenance costs of the equipment and enabling the device to remain economical and efficient in long-term use, adapting to the actual application scenarios of building and municipal engineering projects.

[0004] Technical solution: A construction waste gas separation and purification device for building and municipal engineering includes a support base, a circular cavity fixedly connected to the upper surface of the support base, a top cavity fixedly connected to the upper surface of the circular cavity, a rotating groove formed on the upper surface of the top cavity, an intake chamber formed inside the top cavity, a plurality of screening holes formed inside the intake chamber, a motor fixedly connected inside the rotating groove, a lower rotating rod fixedly connected to the output end of the motor, the lower end of the lower rotating rod penetrating into the interior of the circular cavity and fixedly connected to a plurality of dust-absorbing fan blades.

[0005] Furthermore, a push rod is fixedly connected to the output end of the motor, and a sliding sleeve is slidably connected to the outer wall of the push rod. A limit groove is symmetrically opened inside the sliding sleeve. A limit block is symmetrically fixedly connected to the outer wall of the push rod. The limit block is engaged with the limit groove. A guide rod is fixedly connected to the outer wall of the sliding sleeve. A cam groove is opened inside the rotating groove. The guide rod is engaged with the inside of the cam groove.

[0006] Furthermore, a horizontal plate is symmetrically fixedly connected to the outer wall of the sliding sleeve on the outer side of the top cavity, and a dust removal plate is fixedly connected to the lower surface of the horizontal plate.

[0007] Furthermore, a powder-straining plate is fixedly connected to the inner upper surface of the circular cavity, located on the outer side wall of the lower rotating rod, and a crushing blade is symmetrically fixedly connected to the outer side wall of the lower rotating rod above the powder-straining plate.

[0008] Furthermore, the front surface of the support base is provided with a storage groove, the inside of which is engaged with a storage cavity, and the upper part of the storage cavity is symmetrically fixed with triangular limiting plates, and the upper surface of the storage groove is provided with a material receiving port.

[0009] Furthermore, a locking ring is fixedly connected inside the receiving port, and locking holes are symmetrically opened on the upper surface of the locking ring. Limiting holes are symmetrically opened on the upper surface of the triangular limiting plate, and locking rods are slidably connected inside the locking holes.

[0010] Furthermore, a disc is fixedly connected to the upper surface of the locking rod, and a spring is wound around the outer wall of the locking rod. The top end of the spring is fixedly connected to the lower surface of the adjacent disc, and the bottom end of the spring is fixedly connected to the upper surface of the locking ring.

[0011] Furthermore, the outer side wall of the support base is symmetrically provided with roller grooves, and each roller groove is fixedly connected with a movable wheel.

[0012] Furthermore, a handle is fixedly connected to the front surface of the storage cavity.

[0013] Beneficial Effects: This collection and locking component works synergistically with other components of the device, significantly improving the continuous operating efficiency of the equipment. The crushing blade breaks down large dust particles, while finer dust particles fall precisely into the collection chamber through the dust-extracting plate and the receiving port. The stable locking of the collection chamber provides a reliable endpoint for this process. The mechanical locking of the triangular limiting plate and locking rod ensures that the collection chamber does not shift during dust collection, preventing internal contamination caused by dust spillage. The wind-assisted locking maintains structural stability during high-frequency vibrations, preventing misalignment between the receiving port and the dust-extracting plate due to chamber vibration. This synergistic structure reduces the frequency of equipment downtime for cleaning due to dust accumulation, enabling the device to operate stably and continuously during peak construction periods, significantly improving the continuity and overall treatment efficiency of waste gas purification. This component design enhances environmental performance while effectively reducing equipment operation and maintenance costs. From an environmental perspective, the sealed design of the collection chamber, combined with a precise material collection structure, prevents dust leakage during the collection process, avoids secondary pollution of the construction environment, and meets the environmental emission standards for construction sites. The locking mechanism ensures that the collection chamber remains sealed during transportation and cleaning, reducing the health hazards of dust to operators. In terms of operation and maintenance costs, the simple locking and unlocking structure lowers the technical threshold for equipment maintenance and reduces the need for professional maintenance personnel; wind-assisted locking reduces mechanical wear, extends the service life of locking components, and reduces the frequency and cost of replacing parts; efficient dust collection reduces the amount of cleaning work inside the equipment, further saving labor and time costs, ensuring the device remains economical and efficient in long-term use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the inhalation cavity of the present invention; Figure 3 This is a cross-sectional view of the circular cavity of the present invention; Figure 4 This is a schematic diagram of the internal structure of the circular cavity of the present invention; Figure 5 This is a cross-sectional view of the sliding sleeve of the present invention; Figure 6 This is a schematic diagram of the overall structure of the support base of the present invention; Figure 7 This is a schematic diagram of the internal structure of the support base of the present invention; Figure 8 This is a schematic diagram of the overall structure of the storage cavity of the present invention.

[0015] In the diagram: 1. Support base; 2. Circular cavity; 3. Top cavity; 4. Rotary groove; 5. Suction cavity; 6. Screening hole; 7. Motor; 8. Lower rotating rod; 9. Dust suction fan blade; 10. Top rod; 11. Sliding sleeve; 12. Limiting groove; 13. Limiting block; 14. Guide rod; 15. Cam groove; 16. Horizontal plate; 17. Dust removal plate; 18. Powder leakage plate; 19. Crushing blade; 20. Collection groove; 21. Collection cavity; 22. Triangular limiting plate; 23. Limiting hole; 24. Locking ring; 25. Locking hole; 26. Locking rod; 27. Disc; 28. Roller groove; 29. ​​Moving wheel; 30. Handle; 31. Material receiving port; 32. Spring. Detailed Implementation

[0016] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example like Figures 1-8 As shown, a construction waste gas separation and purification device for building and municipal engineering is provided, including a support base 1, a circular cavity 2 fixedly connected to the upper surface of the support base 1, a top cavity 3 fixedly connected to the upper surface of the circular cavity 2, a rotating groove 4 opened on the upper surface of the top cavity 3, an intake cavity 5 opened inside the top cavity 3, a plurality of screening holes 6 opened inside the intake cavity 5, a motor 7 fixedly connected inside the rotating groove 4, a lower rotating rod 8 fixedly connected to the output end of the motor 7, the lower end of the lower rotating rod 8 penetrates into the interior of the circular cavity 2, and a plurality of dust suction fan blades 9 are fixedly connected thereto. After the device is started, motor 7 begins to run, and its output end drives the lower rotating rod 8 to rotate at high speed in the circular cavity 2. Multiple dust-absorbing fan blades 9 fixed to the bottom of the rotating rod rotate synchronously, creating downward airflow pressure. Under the action of the pressure difference, the construction exhaust gas enters the device through the suction chamber 5 at the bottom of the top cavity 3. The exhaust gas first passes through multiple screening holes 6 opened on the inner wall of the suction chamber 5, where larger dust particles and impurities are initially intercepted, achieving the first stage of physical filtration. After the initial screening, the exhaust gas enters the circular cavity 2. Under the centrifugal force generated by the continuous rotation of the dust-absorbing fan blades 9, the fine particles in the exhaust gas are thrown towards the inner wall of the circular cavity, gradually settling and adhering to the cavity wall, completing the second stage of separation and purification. The purified clean gas is then discharged from the circular cavity under the propulsion of the airflow, ultimately achieving the separation and purification of the construction exhaust gas. Throughout the process, the support base 1 provides stable support for the device, and the rotating groove 4 provides a fixed installation space for the motor, ensuring stable operation of the equipment.

[0018] In this embodiment, a push rod 10 is fixedly connected to the output end of the motor 7. A sliding sleeve 11 is slidably connected to the outer wall of the push rod 10. A limiting groove 12 is symmetrically opened inside the sliding sleeve 11. A limiting block 13 is symmetrically fixedly connected to the outer wall of the push rod 10. The limiting block 13 is engaged with the limiting groove 12. A guide rod 14 is fixedly connected to the outer wall of the sliding sleeve 11. A cam groove 15 is opened inside the rotating groove 4. The guide rod 14 is engaged with the inside of the cam groove 15. A horizontal plate 16 is symmetrically fixedly connected to the outer wall of the sliding sleeve 11, located outside the top cavity 3. A dust removal plate 17 is fixedly connected to the lower surface of the horizontal plate 16. A powder-straining plate 18 is fixedly connected to the upper surface of the inner cavity 2, located outside the lower rotating rod 8. A crushing blade 19 is symmetrically fixedly connected to the outer wall of the lower rotating rod 8, located above the powder-straining plate 18. When motor 7 is running, its output simultaneously drives push rod 10 to rotate. Because the limiting block 13 on the outer side of the push rod engages with the limiting groove 12 inside the sliding sleeve 11, the sliding sleeve rotates synchronously with the push rod and can slide along the axial direction of the push rod. When the sliding sleeve rotates, the guide rod 14 on the outer side slides in the cam groove 15 inside the rotating groove 4. Constrained by the trajectory of the cam groove 15, the sliding sleeve drives the horizontal plate 16 to reciprocate up and down. The dust removal plate 17 on the lower surface of the horizontal plate moves synchronously, causing multiple dust removal plates 17 to rotate up and down, effectively scraping and cleaning the dust adhering to the outer wall of the cavity 2. Simultaneously, the lower rotating rod 8 drives the crushing blade 19 to rotate above the powder-leaking plate 18, breaking up large pieces of dust inside. Fine dust falls through the holes in the powder-leaking plate 18 for easy collection and processing. This series of actions is carried out simultaneously with the exhaust gas purification process, which not only ensures the cleanliness of the outer wall of the top cavity 3 to maintain separation efficiency, but also prevents dust from accumulating and clogging by breaking the blade 19. The powder leakage plate 18 plays a role in receiving and screening, thereby improving the stability of continuous operation of the device.

[0019] In this embodiment, a storage groove 20 is provided on the front surface of the support base 1. A storage cavity 21 is engaged inside the storage groove 20. A triangular limiting plate 22 is symmetrically fixedly connected to the upper part of the storage cavity 21. A receiving port 31 is provided on the upper surface of the storage groove 20. A locking ring 24 is fixedly connected inside the receiving port 31. A locking hole 25 is symmetrically provided on the upper surface of the locking ring 24. A limiting hole 23 is symmetrically provided on the upper surface of the triangular limiting plate 22. A locking rod 26 is slidably connected inside the locking hole 25. A disc 27 is fixedly connected to the upper surface of the locking rod 26. A spring 32 is wound around the outer wall of the locking rod 26. The top end of the spring 32 is fixedly connected to the lower surface of the adjacent disc 27. The bottom end of the spring 32 is fixedly connected to the upper surface of the locking ring 24. When the dust collection structure needs to be stored, the operator aligns the storage cavity 21 with the storage groove 20 on the front surface of the support base 1 and pushes it in smoothly. During the pushing process, the triangular limiting plate 22 inside the storage cavity 21 enters the storage groove 20 simultaneously with the cavity. The inclined surface of the triangular limiting plate 22 gradually contacts the disc 27 at the top of the locking rod 26. When the device is running, the downward airflow generated by the rotation of the dust suction fan blade 9 continuously acts on the upper surface of the disc 27, forming stable pressure. This airflow makes the inner wall of the locking hole 25 fit tightly against the locking rod 26, preventing loosening caused by device vibration. When it is necessary to clean the dust, the operator turns off the power, the dust suction fan blade 9 stops working, and the locking rod 26 disengages from the limiting hole 23, releasing the locked state. Then, the storage cavity 21 can be easily pulled out for processing of the collected dust. This structure enhances the locking effect through airflow, ensuring that the storage cavity 21 remains stable during equipment operation.

[0020] In this embodiment, the outer side wall of the support base 1 is symmetrically provided with roller grooves 28, and each roller groove 28 is fixedly connected with a movable wheel 29. The front surface of the storage cavity 21 is fixedly connected with a handle 30. When the device needs to be moved, the operator applies a pushing force. The moving wheel 29 inside the roller groove 28 on the outer wall of the support base 1 rotates under the force, converting the sliding friction between the device and the ground into rolling friction, significantly reducing the resistance to movement. This facilitates the rapid relocation of the device within the construction site according to the waste gas treatment requirements, improving the convenience and flexibility of equipment use.

[0021] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A construction waste gas separation and purification device for building and municipal engineering projects, comprising a support base (1), characterized in that: A circular cavity (2) is fixedly connected to the upper surface of the support base (1). A top cavity (3) is fixedly connected to the upper surface of the circular cavity (2). A rotating groove (4) is opened on the upper surface of the top cavity (3). A suction cavity (5) is opened inside the top cavity (3). Multiple screening holes (6) are opened inside the suction cavity (5). A motor (7) is fixedly connected inside the rotating groove (4). A lower rotating rod (8) is fixedly connected to the output end of the motor (7). The bottom end of the lower rotating rod (8) penetrates into the interior of the circular cavity (2) and is fixedly connected to multiple dust-absorbing fan blades (9). A push rod (10) is fixedly connected to the output end of the motor (7). A sliding sleeve (11) is slidably connected to the outer wall of the push rod (10). A limiting groove (12) is symmetrically opened inside the sliding sleeve (11). A limiting block (13) is symmetrically fixedly connected to the outer wall of the push rod (10). The limiting block (13) is engaged with the limiting groove (12). A guide rod (14) is fixedly connected to the outer wall of the sliding sleeve (11). A cam groove (15) is opened inside the rotating groove (4). The guide rod (14) is engaged with the inside of the cam groove (15). A horizontal plate (16) is symmetrically fixedly connected to the outer wall of the sliding sleeve (11) on the outer side of the top cavity (3). A dust removal plate (17) is fixedly connected to the lower surface of the horizontal plate (16). A storage groove (20) is provided on the front surface of the support base (1). A storage cavity (21) is engaged inside the storage groove (20). A triangular limiting plate (22) is symmetrically fixedly connected to the upper part of the storage cavity (21). A material receiving port (31) is provided on the upper surface of the storage groove (20). A locking ring (24) is fixedly connected inside the material receiving port (31). The upper surface of the locking ring (24) is symmetrically provided with locking holes (25), and the upper surface of the triangular limiting plate (22) is symmetrically provided with limiting holes (23). The locking holes (25) are all slidably connected with locking rods (26). The upper surface of the locking rods (26) is fixedly connected with discs (27). The outer wall of the locking rods (26) is wrapped with springs (32). The top of the springs (32) is fixedly connected to the lower surface of the adjacent discs (27), and the bottom of the springs (32) is fixedly connected to the upper surface of the locking ring (24).

2. The construction waste gas separation and purification device for building and municipal engineering according to claim 1, characterized in that: On the inner upper surface of the circular cavity (2), a powder-straining plate (18) is fixedly connected to the outer wall of the lower rotating rod (8). On the outer wall of the lower rotating rod (8), a crushing blade (19) is symmetrically fixedly connected above the powder-straining plate (18).

3. The construction waste gas separation and purification device for building and municipal engineering according to claim 1, characterized in that: The outer side wall of the support base (1) is symmetrically provided with roller grooves (28), and each roller groove (28) is fixedly connected with a movable wheel (29).

4. The construction waste gas separation and purification device for building and municipal engineering according to claim 1, characterized in that: A handle (30) is fixedly connected to the front surface of the storage cavity (21).