Dust and noise control device and control method suitable for municipal engineering construction

Abstract

The application relates to a dust and noise control device and method suitable for municipal engineering construction, and relates to the technical field of municipal engineering construction. The control device comprises a protective cover used for covering a construction area, a dust suction mechanism and a noise reduction mechanism arranged on the protective cover. The dust suction mechanism comprises: a dust removal pipe and an air outlet pipe arranged on the protective cover; a dust removal assembly used for removing dust; and a fan in communication with the dust removal pipe, so that air and dust in the protective cover enter the dust removal pipe and are removed by the dust removal assembly. The noise reduction mechanism is arranged on the inner side wall of the protective cover and in the air outlet pipe and is used for removing noise. The protective cover can block dust and noise from escaping, so that the dust and noise are located in a closed space in the protective cover. When the fan is started, more dust can enter the dust removal assembly for removal. Meanwhile, air flow can also make noise move faster to be removed, so that the pollution caused by dust and noise to the environment can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of municipal engineering construction, and in particular to dust and noise control devices and methods applicable to municipal engineering construction. Background Technology

[0002] Municipal engineering refers to the construction of municipal facilities. The construction of various public infrastructure supporting urban life falls under the category of municipal engineering, such as common urban roads, bridges, subways, squares, parks, and urban greening.

[0003] Construction work on roads and in parks generates a lot of dust and noise, which pollutes the environment. Current noise and dust reduction devices are very simple, using only a fan to draw dust into a collection structure and noise reduction panels to reduce noise. However, since construction takes place in open environments, a lot of dust and noise still cannot be removed. Therefore, there is an urgent need to design a noise and dust reduction device to improve the dust and noise reduction effect. Summary of the Invention

[0004] In order to reduce the pollution of the environment caused by dust and noise, this application provides a dust and noise control device and control method suitable for municipal engineering construction.

[0005] Firstly, the dust and noise control device for municipal engineering construction provided in this application adopts the following technical solution:

[0006] A dust and noise control device suitable for municipal engineering construction includes a protective cover for enclosing the construction area, a dust collection mechanism installed on the protective cover, and a noise reduction mechanism, wherein the dust collection mechanism includes:

[0007] The dust removal pipe and the air outlet pipe are installed on the protective cover and are respectively provided with multiple air inlets and multiple air outlets;

[0008] A dust removal assembly is installed on the dust removal pipe and is used to remove dust.

[0009] A fan is installed on the air outlet pipe and connected to the dust removal pipe, so that the air and dust in the protective cover enter the dust removal pipe through multiple air inlets, and then are removed by the dust removal components, and the dust-removed air is blown out through multiple air outlets.

[0010] The noise reduction mechanism is installed on the inner wall of the protective cover and inside the air outlet duct and is used to remove noise.

[0011] By adopting the above technical solution, a protective cover is built in the construction area, so that the construction area is located inside the protective cover. At the same time, the fan is started, so that the dust inside the protective cover enters the dust removal pipe through multiple air inlets. Then the dust removal component is used to remove the dust. Finally, the air is blown out through multiple air outlets and flows back into the protective cover, thereby achieving dust removal and accelerating the air flow inside the protective cover. The air flow also causes some noise to enter the air outlet pipe with the air. The noise reduction mechanism located in the air outlet pipe is used to remove the noise that enters, and the noise remaining in the protective cover can continue to be removed by the noise reduction mechanism located in the protective cover.

[0012] The protective cover prevents dust and noise from escaping, keeping them within the enclosed space. When the fan is activated, more dust enters the dust removal components for removal. Simultaneously, the airflow accelerates the movement of noise, also reducing its impact. Since the dust within the protective cover is removed by the dust removal components, the risk of dust moving into the noise reduction mechanism and causing blockages is reduced. Therefore, the removal efficiency of both dust and noise is improved, simultaneously reducing environmental pollution. Furthermore, the protective cover provides wind and rain protection, preventing interference from external weather conditions during construction and further improving construction efficiency.

[0013] Optionally, the noise reduction mechanism includes:

[0014] Noise reduction plate one and noise reduction plate two are respectively installed on the inner side wall of the air outlet duct and the protective cover, and each has multiple noise reduction holes for noise reduction.

[0015] Noise reduction components are installed inside the protective cover and actively generate sound waves to remove noise;

[0016] A noise meter is used to detect noise inside a protective enclosure and adjust the parameters of the sound waves emitted by the noise reduction components based on the detection results.

[0017] By adopting the above technical solution, the noise after dust removal by the dust removal component is reduced by noise reduction plate one and then moved back into the protective cover. The noise located in the protective cover is moved to noise reduction plate two for further noise reduction. At the same time, the noise reduction component is activated to generate a sound wave that is opposite in phase to the noise, which meets the noise to reduce or eliminate the noise. Meanwhile, the noise detector is used to detect the decibel level of the noise inside the protective cover. When the noise exceeds a specified value, the noise detector controls the noise reduction component to adjust the parameters of the sound wave, thereby improving the noise removal effect and further improving the noise removal effect, reducing the pollution caused by noise to the environment.

[0018] Optionally, the dust removal assembly includes:

[0019] The ash storage pipe is installed on the lower surface of the dust removal pipe, is vertically downward, and is connected to the inside of the dust removal pipe.

[0020] An output pipe is installed on the dust removal pipe and extends into the ash storage pipe and is connected to the fan. When the fan is started, gas is input into and out of the air pipe through the output pipe.

[0021] Dust collector bags are installed at the connection between the output pipe and the ash storage pipe and are used to remove dust from the air.

[0022] By adopting the above technical solution, the air and dust in the dust removal pipe move downward into the ash storage pipe, which slows down the airflow and causes the dust to fall downward into the ash storage pipe for storage. Then, the air passes through the dust collector bag for dust removal, and the dust-removed air is input into the exhaust duct through the output pipe, while the dust remains on the dust collector bag, thereby achieving dust removal. At the same time, the dust collector bag and the ash storage pipe can be cleaned regularly to further improve the dust removal effect and efficiency.

[0023] Noise propagates with airflow, and the direction of air movement creates bends and reversals in multiple directions. This causes noise to reflect, diffract, and transmit in multiple directions when it comes into contact with objects, thus greatly improving the noise removal effect and further reducing noise pollution to the environment.

[0024] Optionally, the ash storage pipe is equipped with a cleaning component for cleaning the dust collector bags, the cleaning component comprising:

[0025] Ash storage valve, located at the bottom of ash storage pipe and used to control the opening and closing of ash storage pipe;

[0026] The control panel is slidably mounted on the dust removal pipe and is used to control the connection or closure of the dust removal pipe and the ash storage pipe.

[0027] Replace the pipe and connect it to the fan inlet;

[0028] The intake pipe connects to the outside environment and is connected to the output pipe and replacement pipe via a three-way valve.

[0029] The backflush pipe is installed on the lower surface of the air outlet pipe and is connected to the output pipe.

[0030] The control door is mounted on the bottom wall inside the air outlet duct.

[0031] The sealing strip is installed on the top wall inside the air outlet duct;

[0032] An anemometer is installed on the air outlet duct and is electrically connected to the ash storage valve, control panel, control door, and three-way valve.

[0033] A collection bag is detachably installed at the bottom of the ash storage pipe and is used to collect dust that falls inside the ash storage pipe;

[0034] The ash storage valve closes the ash storage pipe and the three-way valve controls the replacement pipe to connect with the output pipe, so that the control door is horizontally mounted on the bottom wall of the air outlet pipe to block the backflushing pipe and the control board controls the connection between the dust removal pipe and the ash storage pipe to connect; or, the ash storage valve opens the ash storage pipe and the three-way valve controls the replacement pipe to connect with the air inlet pipe, the control door turns to a vertical position and abuts against the sealing strip for positioning and is used to guide the air in the air outlet pipe into the backflushing pipe, the control board closes the connection between the ash storage pipe and the dust removal pipe and is used to clean the dust on the dust removal bag and make it fall into the collection bag for collection.

[0035] By adopting the above technical solution, during dust removal operation, the control panel controls the connection between the dust removal pipe and the ash storage pipe, the ash storage valve closes the ash storage pipe, the three-way valve controls the connection between the replacement pipe and the output pipe, and the control door is installed on the bottom wall of the outlet pipe to block the backflow pipe; the air in the dust removal pipe enters the ash storage pipe vertically downwards, and the dust in the air falls to the bottom of the ash storage pipe under the action of gravity and inertia, while the air enters the output pipe through the dust removal bag for dust removal, and after dust removal, the air enters the outlet pipe for output through the replacement pipe and the fan in sequence.

[0036] As dust accumulates on the filter bags, the airflow velocity in the outlet duct slows down under the same power. When the wind speed detector detects that the wind speed is lower than the specified value, it means that the dust on the filter bags is severely clogged and needs to be cleaned. The control panel closes the connection between the dust collection pipe and the ash storage pipe, the three-way valve connects the replacement pipe to the inlet pipe, and the control door turns to a vertical position and abuts against the sealing strip for positioning, thereby blocking the outlet duct and opening the backflush pipe. This allows the air that entered the outlet duct through the replacement pipe to enter the backflush pipe, and the ash storage valve opens the ash storage pipe.

[0037] When the fan starts, outside air enters the replacement pipe and outlet pipe through the inlet pipe, and then enters through the backflushing pipe and output pipe, causing the dust collector bags to expand. The gas passes through the dust collector bags into the ash storage pipe, causing the dust on the dust collector bags to fall off. Then, the air and dust move through the bottom of the ash storage pipe to the collection bag. The air passes through the collection bag, while the dust is stored inside the collection bag, thus cleaning the dust on the dust collector bags. After cleaning, the control panel connects the dust collector pipe and the ash storage pipe, the three-way valve connects the replacement pipe and the output pipe, and the control door is installed on the bottom wall of the outlet pipe to block the backflushing pipe. The ash storage valve closes the ash storage pipe, and then the dust removal operation is repeated.

[0038] The above structure enables automatic, timed cleaning of dust from the filter bags using only the operation of a fan. No additional fan structure is needed, making dust removal more stable and convenient, thus improving the dust removal efficiency. Furthermore, the removal of dust from the filter bags allows noise to be more easily transferred to the noise reduction plate for absorption, further enhancing the removal of both dust and noise. This simultaneously reduces environmental pollution caused by dust and noise. Since the fan is a consumable component, only one is needed, saving energy and making the structure simple and easy to maintain.

[0039] Optionally, the protective cover has ventilation openings for vehicles to pass through. Multiple curtains are spaced apart inside the protective cover and near the ventilation openings. The construction area is formed by the curtain furthest from the ventilation openings and the protective cover. The curtains and the protective cover cooperate to form a buffer zone for buffering. An air jet pipe for cleaning the vehicle is installed in the buffer zone. The dust collection mechanism is located in the construction area and the dust collection pipe extends into the buffer zone.

[0040] By adopting the above technical solution, when vehicles are needed to transport materials during the construction process, they enter the protective cover through the ventilation openings, then pass through the curtain to enter the buffer zone for buffering. The air jet pipes clean the vehicles, and the impurities enter the dust removal pipe for dust removal before entering the construction area for construction. When leaving the construction area, the vehicles pass through the buffer zone for cleaning before leaving, which further reduces the risk of dust on the vehicles escaping into the environment and causing pollution. At the same time, the curtains facilitate the avoidance of vehicles when they pass, and after the vehicles pass, they can hang down under the action of gravity to block the flow, thereby reducing the risk of dust and noise escaping from the protective cover through the ventilation openings, thus further reducing the pollution caused by dust and noise to the environment.

[0041] Optionally, a protective curtain for sealing the ventilation opening is provided at the ventilation opening.

[0042] By adopting the above technical solutions, the protective curtain design of the ventilation opening can further block the risk of dust and noise escaping from the protective cover, while improving the removal effect of dust and noise.

[0043] Optionally, the protective cover includes:

[0044] Multiple protective frame units are movably connected together by connecting components. Each protective frame unit is equipped with a protective air membrane and has detachable rolling wheels at the bottom. After multiple protective frame units are spliced ​​together, the multiple protective air membranes press against each other to seal.

[0045] Positioning components are used to position individual protective frame units.

[0046] By adopting the above technical solution, multiple protective frame units are spliced ​​together by connecting components, and adjacent protective frame units can move within a certain range. At the same time, multiple protective air membranes are used for sealing by pressure. Positioning components are used to position the protective frame units. Moreover, when the construction area is small, the protective cover can cover the entire construction area. At this time, the protective cover does not need to be moved, so the rolling wheels can be removed and the protective frame units can be placed on the ground, improving the stability of the protective cover.

[0047] When the construction area is large, localized construction can be carried out within the area. The rollers roll on the ground while the positioning components hold the shield in place. When the protective cover needs to be moved, the positioning components unlock, pushing one or more individual protective frames. The rollers roll on the ground, causing the protective cover to move. Once in place, the positioning components hold the individual protective frames in position. This allows for the removal of dust and noise from construction areas of varying sizes. Furthermore, the movable protective cover design allows for a smaller protective cover area when the construction area is large. This smaller cover further improves the dust and noise removal effect during construction, reduces the time spent setting up the protective cover, and lowers the cost. Therefore, it further reduces environmental pollution caused by dust and noise, while improving construction efficiency and cost.

[0048] Meanwhile, the connecting components allow adjacent protective frame units to move within a certain range. Therefore, when the construction area is irregular, the two adjacent protective frame units can move with each other, which improves the convenience of moving and assembling the protective frame units. This allows for turning or changing direction, and enables the covering of the construction area with a small volume, thereby improving construction efficiency and reducing construction costs.

[0049] Optionally, the positioning component includes:

[0050] The positioning screw is threaded onto the protective frame unit and is set vertically downwards.

[0051] The positioning plate is rotatably mounted at the bottom of the positioning screw and presses against the ground for positioning.

[0052] By adopting the above technical solution, the positioning screw is turned to drive the positioning plate to press against the ground, and then the positioning screw can continue to be rotated to increase the pressure on the ground, which further improves the positioning effect of the protective frame unit.

[0053] Optionally, the connection component includes:

[0054] Two connecting blocks are respectively installed on two individual protective frames;

[0055] Two rotating balls are respectively mounted on two connecting blocks and connected by a connecting rod;

[0056] The spring is fitted onto the connecting rod and presses against the two connecting blocks.

[0057] By adopting the above technical solution, when two adjacent protective frame units move relative to each other from multiple directions, the two rotating balls can rotate on the two connecting blocks to realize the movement of the two protective frame units. The spring can buffer the force on the two adjacent protective frame units, and the relative movement of the two adjacent protective frame units will also compress the spring. The spring pushes the two adjacent protective frame units to maintain the force of returning to their original position. When the two adjacent protective frame units need to return to their original position, the spring can also push the two adjacent protective frame units to return, so that the two adjacent protective frame units can return more quickly, improving the stability of the protective cover after installation and improving the removal effect of dust and noise.

[0058] Secondly, the dust and noise control method provided in this application adopts the following technical solution:

[0059] Dust and noise control methods include the following control steps:

[0060] A protective cover is erected so that the construction area is located inside the cover, thus keeping the dust and noise generated during construction within the cover.

[0061] Noise and dust reduction: When the fan is started, air and dust enter the dust collection pipe and are then removed by the dust collection bag. The air after dust removal is blown out through the air outlet pipe, thus removing dust from the air inside the protective cover. This causes the noise to be moved to noise reduction plate one and noise reduction plate two for noise reduction. At the same time, the noise reduction components generate sound waves to cancel out the noise, thereby achieving dust and noise reduction.

[0062] By adopting the above technical solution and setting up a protective cover, the dust and noise generated during construction are contained within the protective cover. When the fan is started, air and dust enter the dust removal pipe and are then removed by the dust removal bag. The dust-removed air is blown out through the air outlet pipe, thus removing dust from the air inside the protective cover. This causes the noise to be moved to noise reduction plate one and noise reduction plate two for noise reduction. At the same time, the noise reduction components generate sound waves to cancel out and remove the noise, thereby achieving dust and noise reduction.

[0063] In summary, this application includes at least one of the following beneficial technical effects:

[0064] 1. The protective cover prevents dust and noise from escaping, keeping them within the enclosed space. When the fan is activated, more dust enters the dust removal components for removal. Simultaneously, airflow accelerates the movement of noise, leading to its removal. Since the dust within the protective cover is removed by the dust removal components, the risk of dust moving into the noise reduction mechanism and causing blockage is reduced. Therefore, the removal efficiency of dust and noise is improved, reducing environmental pollution caused by both. Furthermore, the protective cover provides wind and rain protection, preventing interference from external weather conditions during construction and further improving construction efficiency.

[0065] 2. The above structure enables automatic, timed cleaning of dust from the filter bags using only the operation of a fan. No additional fan structure is needed, making dust removal more stable and convenient, thus improving the dust removal effect. Furthermore, the removal of dust from the filter bags allows noise to be more easily transferred to the noise reduction plate for absorption, further enhancing the removal of both dust and noise. This simultaneously reduces environmental pollution caused by dust and noise. Since the fan is a consumable component, only one is needed, saving energy and making the structure simple and easy to maintain. Attached Figure Description

[0066] Figure 1 This is a three-dimensional structural diagram of the control device;

[0067] Figure 2 yes Figure 1 A cross-sectional schematic diagram of AA in the middle;

[0068] Figure 3 This is a structural diagram of the dust collection mechanism and cleaning components in the control device;

[0069] Figure 4 It is a structural schematic diagram of the dust collection mechanism and cleaning components in the control device, in which the side wall of the dust removal pipe, air outlet pipe and ash storage pipe is shown in cross section.

[0070] Figure 5 This is a structural diagram of the protective frame unit, positioning components, and connecting components in the control device.

[0071] Attached reference numerals: 11. Ventilation opening; 12. Door curtain; 13. Construction area; 14. Buffer zone; 15. Protective curtain; 16. Air jet pipe; 2. Dust collection mechanism; 21. Dust collection pipe; 211. Air inlet; 22. Air outlet pipe; 221. Air outlet; 23. Fan; 3. Dust collection assembly; 31. Ash storage pipe; 32. Output pipe; 33. Dust collector bag; 34. Ash storage section; 35. Ash inlet; 36. Support frame; 4. Cleaning assembly; 41. Ash storage valve; 42. Control panel; 43. Replacement pipe; 4 4. Inlet pipe; 441. Three-way valve; 45. Backflush pipe; 46. Control door; 47. Sealing strip; 48. Anemometer; 49. Collection bag; 5. Noise reduction mechanism; 51. Noise reduction plate one; 52. Noise reduction plate two; 53. Noise reduction component; 6. Protective cover; 61. Protective frame unit; 62. Protective air membrane; 63. Rolling wheel; 7. Positioning assembly; 71. Positioning screw; 72. Positioning plate; 8. Connecting assembly; 81. Connecting block; 82. Rotating ball; 83. Spring; 84. Connecting rod. Detailed Implementation

[0072] The following provides a further detailed description of this application.

[0073] This application discloses a dust and noise control device applicable to municipal engineering construction.

[0074] Reference Figure 1 and Figure 2 The dust and noise control device applicable to municipal engineering construction includes a protective cover 6 covering the construction area 13, a dust collection mechanism 2 installed on the protective cover 6 for dust collection, and a noise reduction mechanism 5 for noise removal.

[0075] One end of the protective cover 6 has a ventilation opening 11 for vehicles to pass through. Multiple sets of curtains 12 are spaced along the length of the inner wall of the protective cover 6. There are at least two sets of curtains 12. Each set of curtains 12 is spaced along the width of the protective cover 6. The curtains 12 are made of cloth or soft plastic, and each curtain 12 is sealed by abutting against each other under the action of gravity. The construction area 13 is formed by the curtain 12 farthest from the ventilation opening 11 and the inner part of the protective cover 6. Other curtains 12 and the inner part of the protective cover 6 form a buffer zone 14. There is at least one buffer zone 14.

[0076] Multiple protective curtains 15 are fixedly installed on the ventilation opening 11. The protective curtains 15 and the door curtain 12 are made of the same material. The multiple protective curtains 15 are set vertically downward under the action of gravity and abut against each other to block the ventilation opening 11. When a vehicle passes by, it pushes the protective curtains 15 or the door curtain 12 to move and avoid the vehicle. After the vehicle passes, the protective curtains 15 and the door curtain 12 can automatically block the ventilation opening 11 by abutting against each other under the action of gravity.

[0077] Reference Figures 2-4The dust collection mechanism 2 is set in the construction area 13. The dust collection mechanism 2 includes a dust collection pipe 21 and an air outlet pipe 22, a dust collection component 3 and a fan 23. The dust collection pipe 21 and the air outlet pipe 22 are fixedly installed on the inner top wall of the protective cover 6 and are spaced apart along the length of the protective cover 6. Multiple air inlets 211 and multiple air outlets 221 are spaced apart along the length of the protective cover 6 on the lower surface of the dust collection pipe 21 and the air outlet pipe 22. The dust collection pipe 21 is located below the air outlet pipe 22, so that more dust enters the dust collection pipe 21 through the air inlet 211.

[0078] The dust removal component 3 is used to remove dust. The fan 23 is installed on the air outlet duct 22 and connected to the dust removal duct 21, so that the air and dust in the protective cover 6 enter the dust removal duct 21 through multiple air inlets 211. Then the wind and air are removed by the dust removal component 3. The dust-removed air is blown out through multiple air outlets 221, thereby accelerating the air flow in the protective cover 6 and realizing the removal of dust from the air.

[0079] Air jet pipes 16 are fixedly installed on the opposite side walls of the protective cover 6 within the buffer zone 14. The air jet pipes 16 are used to spray air onto vehicles entering the buffer zone 14 to clean them, causing dust to fall off the vehicles and their surroundings. The air jet pipes 16 are connected to an air source. A dust removal pipe 21 is also installed inside the protective cover 6 within the buffer zone 14. Therefore, when the fan 23 is started, air and dust in the buffer zone 14 enter through the air inlet 211 and are then removed by the dust removal assembly 3.

[0080] Multiple dust removal pipes 21 and air outlet pipes 22, dust removal components 3 and fans 23 can be arranged at intervals along the width of the protective cover 6 to work together to accelerate the airflow inside the protective cover 6 and achieve dust removal from the air.

[0081] Reference Figures 3-4 The dust removal assembly 3 includes a dust collection pipe 31, an output pipe 32, and a dust collection bag 33. The dust collection pipe 31 is fixedly installed on the lower surface of one end of the dust collection pipe 21 and is set vertically downward. The bottom of the dust collection pipe 31 is coaxially and integrally provided with a gradually inwardly contracting dust collection part 34. A dust inlet hole 35 communicating with the inside of the dust collection pipe 31 is opened on the lower surface of the dust collection pipe 21 and at the location of the dust collection pipe 31. One end of the output pipe 32 passes vertically through the upper surface of the dust collection pipe 21 and the dust inlet hole 35 and extends into the dust collection pipe 31. The other end of the output pipe 32 is connected to the end of the air outlet pipe 22 near the dust collection pipe 31. The fan 23 is fixedly installed on the inner side wall of the end of the air outlet pipe 22 near the output pipe 32. When the fan 23 is started, air is input into the air outlet pipe 22 through the output pipe 32.

[0082] A support frame 36 is fixedly installed inside the ash storage pipe 31 and below the output pipe 32. A dust collector bag 33 is fixedly installed on the side wall opposite to the bottom of the output pipe 32 and the support frame 36. The dust collector bag 33 is used to filter dust in the air. When the fan 23 is started, air and dust enter the dust collector pipe 21 through the air inlet 211. Then the air passes downward through the ash inlet 35 into the ash storage pipe 31. The air and dust are removed by the dust collector bag 33. After dust removal, the air enters the air outlet pipe 22 through the output pipe 32. Finally, the air is blown out through multiple air outlets 221. The dust collector pipe 21 can also be connected to the outside of the protective cover 6, allowing outside air to enter the protective cover 6 and improving the air quality inside the protective cover 6.

[0083] Reference Figures 2-4 The ash storage pipe 31 is equipped with a cleaning component 4 for cleaning the dust collector bag 33. The cleaning component 4 includes an ash storage valve 41, a control panel 42, a replacement pipe 43, an air inlet pipe 44, a backflushing pipe 45, a control door 46, a sealing strip 47, an anemometer 48, and a collection bag 49. The ash storage section 34 is connected to the inside of the ash storage pipe 31 and its bottom is connected to the outside, i.e., the inside of the protective cover 6. The ash storage valve 41 is fixedly installed on the ash storage section 34 and is used to control the opening or closing of the ash storage section 34.

[0084] Two control boards 42 are horizontally slidably installed on the top of the ash storage pipe 31 and spaced apart. The two control boards 42 are close to each other and abut against the outer wall of the output pipe 32 to block the ash inlet 35 and close the connection between the dust removal pipe 21 and the ash storage pipe 31. Alternatively, the connection between the dust removal pipe 21 and the ash storage pipe 31 can be opened when the two control boards 42 are moved away from each other. A double-headed cylinder or double-headed electric actuator is fixedly installed on the dust removal pipe 21 to drive the two control boards 42 to move closer or further apart.

[0085] Replacement pipe 43 is fixedly installed on the end of air outlet pipe 22 near output pipe 32, and replacement pipe 43 is connected to the inside of air outlet pipe 22, that is, replacement pipe 43 is connected to the air inlet of fan 23; air inlet pipe 44 is connected to the outside, that is, the inside of protective cover 6, and air inlet pipe 44 is set vertically upward, and the bottom is connected to the end of output pipe 32 away from dust removal pipe 21 and the end of replacement pipe 43 away from air outlet pipe 22 through three-way valve 441; backflushing pipe 45 is fixedly installed on the lower surface of air outlet pipe 22 and located on the side of fan 23 away from replacement pipe 43 and is connected to the inside of air outlet pipe 22. Backflushing pipe 45 is located between multiple air outlet holes 221 and fan 23, and backflushing pipe 45 is connected to output pipe 32.

[0086] The control door 46 is rotatably mounted on the inner bottom wall of the air outlet duct 22, and the control door 46 is located on the side of the fan 23 and backflush pipe 45 away from the replacement pipe 43. The sealing strip 47 is fixedly mounted on the inner top wall of the air outlet duct 22 and is located on the side of the control door 46 away from the fan 23. A drive component for driving the control door 46 to rotate is fixedly mounted on the outer wall of the air outlet duct 22. The drive component can be a motor or electric motor. When the control door 46 is rotated to the horizontal state, it abuts against the inner bottom wall of the air outlet duct 22 and blocks the connection between the backflush pipe 45 and the air outlet duct 22. Alternatively, when the control door 46 is rotated to the vertical state, the control door 46 abuts against the sealing strip 47, so that the control door 46 can block the air outlet duct 22 and prevent the air in the air outlet duct 22 from passing through and allow the air in the air outlet duct 22 to be introduced into the backflush pipe 45.

[0087] An anemometer 48 is fixedly installed inside the outlet duct 22 and is used to detect the air flow speed inside the outlet duct 22. The collection bag 49 is fixedly installed on the bottom of the ash storage section 34 by ropes or clamps, and the collection bag 49 is used to collect the dust falling from the ash storage section 34 and allows gas to pass through. A control box is fixedly installed on the dust removal pipe 21 to control the opening and closing of the ash storage valve 41, the movement of the control panel 42, the rotation of the control door 46, and the opening and closing of the three-way valve 441. The anemometer 48 is electrically connected to the control box, and the anemometer 48 transmits the detection data to the control box. The control box performs control according to the detection data.

[0088] When the control box is started, the ash storage valve 41, control panel 42, control door 46, and three-way valve 441 are in their initial state. The ash storage valve 41 closes the ash storage section 34, and the three-way valve 441 controls the replacement pipe 43 to connect with the output pipe 32. The control door 46 is placed on the bottom wall of the air outlet pipe 22 to block the backflow pipe 45, and connects the dust removal pipe 21 and the ash storage pipe 31. At this time, air and dust enter the ash storage pipe 31 through the ash inlet hole 35. Then, the air enters the air outlet pipe 22 in sequence through the dust removal bag 33, the output pipe 32, and the replacement pipe 43. Finally, the air is output through multiple air outlet holes 221.

[0089] Alternatively, the anemometer 48 detects the airflow speed inside the exhaust duct 22. If the airflow speed inside the exhaust duct 22 is lower than a specified value when the fan speed is the same, it indicates that the dust collector bag 33 is severely clogged and needs cleaning. The control box is activated, the ash storage valve 41 opens the ash storage section 34, and the three-way valve 441 connects the replacement pipe 43 to the inlet pipe 44. The control door 46 rotates and abuts against the sealing strip 47 to block the exhaust duct 22, allowing air in the exhaust duct 22 to be introduced into the backflushing pipe 45. The control board 42 closes the ash storage pipe 31 and the dust collector pipe 21. At the connection point, air is input through the output pipe 32 and used to clean and remove dust from the dust collector bag 33. At the same time, the fallen dust moves downward into the collection bag 49 for collection, and the gas escapes through the collection bag 49. This achieves automatic cleaning of dust on the dust collector bag 33, speeds up the rate at which air passes through the dust collector bag 33, and improves the dust removal effect and efficiency. After cleaning is completed, the control box is activated, causing the ash storage valve 41, control panel 42, control door 46, and three-way valve 441 to be in their initial states, and then the dust removal of the air continues.

[0090] Noise enters the dust removal pipe 21 with the air, and the air enters the ash storage pipe 31 vertically downwards. The noise comes into contact with the inner wall of one end of the dust removal pipe 21 and the inner wall of the dust removal pipe 21, thereby reflecting, diffracting and transmitting the noise, thus removing the noise. Some of the noise continues to move with the air and come into contact with the solid, thus continuing to remove the noise.

[0091] Reference Figure 2 , Figure 4 The noise reduction mechanism 5 is installed on the inner wall of the protective cover 6 and the inner wall of the air outlet duct 22 and is used to remove noise. The noise reduction mechanism 5 includes a noise reduction plate 1 51 and a noise reduction plate 2 52, a noise reduction component 53 and a noise detector. The noise reduction plate 1 51 is fixedly installed on the inner wall of the air outlet duct 22 and is located on the side of the fan 23 and the backflow pipe 45 away from the replacement pipe 43. The noise reduction plate 2 52 is fixedly installed on the inner wall of the protective cover 6. Both the noise reduction plate 1 51 and the noise reduction plate 2 52 can be provided with multiple pieces at intervals and have multiple noise reduction holes evenly opened. The noise reduction holes are in a curved state and are used to remove noise. The air through the fan 23 is moved to the noise reduction plate 1 51 for noise reduction treatment, and then the air is blown out through the air outlet 221.

[0092] The noise reduction component 53 is fixedly installed on the inner wall of the protective cover 6, and multiple noise reduction components 53 can be installed as needed. The noise reduction component 53 actively generates sound waves that are opposite in phase to the noise. The emitted sound waves meet and cancel out the sound waves of the noise, thereby removing the noise. The noise remaining in the protective cover 6 is moved to the noise reduction plate 52 for removal. The noise reduction component 53 is controlled by the control box.

[0093] The noise detector is fixedly installed inside the protective cover 6 and is used to detect the noise decibels inside the protective cover 6. The noise detector transmits the detected data to the control box. When the noise decibels are higher than the specified value, the control box adjusts the parameters of the sound waves generated by the noise reduction component 53 so that the sound waves and noise can cancel each other out better, thereby further improving the noise removal effect and efficiency.

[0094] Reference Figure 2 , Figure 5 The protective cover 6 includes multiple protective frame units 61 and positioning components 7. The multiple protective frame units 61 are spaced apart to form the length direction of the protective cover 6, and adjacent protective frame units 61 are movably connected together by connecting components 8. The bottom of the protective frame unit 61 is supported on the ground on both sides of the construction area 13. Each protective frame unit 61 has a protective air membrane 62 made of transparent material fixedly installed on its top. When multiple protective frame units 61 are spliced ​​together, the protective air membranes 62 on adjacent protective frame units 61 press against each other for positioning, so that the multiple protective air membranes 62 cooperate to form an integral structure to block the movement of dust and noise, thereby achieving dust removal and noise reduction.

[0095] The bottom of the protective frame unit 61 is supported on the ground, and the positioning component 7 is positioned to form a protective cover 6, which covers the entire construction area 13. When the construction area 13 is large, rolling wheels 63 can be fixedly installed at the bottom of the protective frame unit 61, and the protective cover 6 covers part of the construction area 13. When the protective cover 6 needs to be moved, the positioning component 7 is unlocked, and then the protective cover 6 is pushed to move. After it is moved into place, the positioning component 7 is locked, thereby further improving construction efficiency and cost.

[0096] The connecting assembly 8 includes two connecting blocks 81, two rotating balls 82, and a spring 83. The two connecting blocks 81 are fixedly installed on the opposite side walls of the two protective frame units 61 by screws, so that the connecting assembly 8 and the protective frame units 61 can be stored and transported separately. The two connecting blocks 81 are provided with spherical rotating grooves. The two rotating balls 82 are rotatably installed on the rotating grooves and fixedly connected by connecting rods 84. The springs 83 are sleeved on the connecting rods 84 and their two ends press against the two connecting blocks 81, so that the two protective frame units 61 can move relative to each other in both horizontal and vertical directions. When the two adjacent protective frame units 61 move relative to each other, they will compress the springs 83. When the two protective frame units 61 move back, the springs 83 can push the two protective frame units 61 back to their original positions.

[0097] The positioning component 7 includes a positioning screw 71 and a positioning plate 72. The positioning screw 71 passes vertically through the protective frame unit 61 and is threadedly connected to the protective frame unit 61. The positioning plate 72 is rotatably connected to the bottom of the positioning screw 71 and is in a horizontal state. The positioning screw 71 pushes the positioning plate 72 to press against the ground for positioning. At the same time, spikes or protrusions can also be provided on the lower surface of the positioning plate 72 to increase friction.

[0098] The working principle of this application embodiment is as follows:

[0099] Multiple protective frame units 61 are transported to the construction site, and two connecting blocks 81 are fixedly installed on two adjacent protective frame units 61, so that multiple protective air membranes 62 press against each other for positioning, thereby assembling the protective cover 6. At the same time, protective air membranes 62 can be fixedly installed at the protective units at both ends of the protective cover 6, and door curtains 12 and protective curtains 15 can be fixedly installed on the protective cover 6 to form the construction area 13 and the buffer zone 14.

[0100] When the fan 23 is started, air and impurities in the construction area 13 and buffer zone 14 enter the dust removal pipe 21 through multiple air inlets 211. The air then passes through the dust removal bag 33 for dust removal and enters the air outlet pipe 22 through the output pipe 32 and replacement pipe 43. After dust removal, the air is blown out through multiple air outlets 221, thereby achieving dust removal of the air and accelerating the airflow within the protective cover 6. At the same time, noise is removed by the cooperation of noise reduction plate 1 51 and noise reduction plate 2 52. The noise reduction component 53 actively generates sound waves that are opposite in phase to the noise. The emitted sound waves meet and cancel out the sound waves of the noise, thereby removing the noise. This combination is used to achieve noise removal.

[0101] When the anemometer 48 detects that the airflow speed in the duct 22 is lower than a specified value, the control box starts control, the fan 23 continues to start, the ash storage valve 41 opens the ash storage section 34 and the three-way valve 441 controls the replacement pipe 43 to connect with the inlet pipe 44, the control door 46 blocks the outlet duct 22, and the control board 42 closes the connection between the ash storage pipe 31 and the dust removal pipe 21, so that air is input through the output pipe 32 and used to clean the dust on the dust removal bag 33. At the same time, the fallen dust moves down into the collection bag 49 for collection, and the gas escapes through the collection bag 49, thereby realizing the automatic cleaning of the dust on the dust removal bag 33. After cleaning is completed, the control box starts control, the ash storage valve 41 closes the ash storage section 34 and the three-way valve 441 controls the replacement pipe 43 to connect with the output pipe 32, and then continues to be used for dust removal.

[0102] This application discloses a method for controlling dust and noise.

[0103] Reference Figures 1-4 The dust and noise control methods include the following control steps:

[0104] A protective cover 6 is erected so that the construction area 13 is located inside the protective cover 6, so that the dust and noise generated during construction are contained inside the protective cover 6.

[0105] Noise and dust reduction: When the fan 23 is started, air and dust enter the dust removal pipe 21 and are then removed by the dust removal bag 33. The air after dust removal is blown out through the air outlet pipe 22, thereby removing dust from the air inside the protective cover 6. This causes the noise to be moved to the noise reduction plate 1 51 and noise reduction plate 2 52 for noise reduction. At the same time, the noise reduction component 53 generates sound waves to cancel and remove the noise, thereby achieving dust and noise reduction.

[0106] The working principle of this application embodiment is as follows:

[0107] A protective cover 6 is erected to keep the dust and noise generated during construction within the cover 6. The fan 23 is started, allowing air and dust to enter the dust removal pipe 21 and then pass through the dust removal bag 33 for dust removal. The dust-removed air is blown out through the air outlet pipe 22, thus removing dust from the air inside the protective cover 6. This causes the noise to be moved to the noise reduction plate 1 51 and noise reduction plate 2 52 for noise reduction. At the same time, the noise reduction component 53 generates sound waves to cancel out and remove the noise, thereby achieving dust and noise reduction.

[0108] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dust and noise control device for use in municipal construction, characterized by: The utility model relates to a dustproof cover (6) including a construction area (13) cover, a dust suction mechanism (2) and a noise reduction mechanism (5) arranged on the dustproof cover (6), the dust suction mechanism (2) includes: A dust removal pipe (21) and an air outlet pipe (22) are arranged on the dustproof cover (6) and are respectively provided with a plurality of air inlet holes (211) and a plurality of air outlet holes (221); A dust removal assembly (3) is arranged on the dust removal pipe (21) and is used for removing dust; A fan (23) is arranged on the air outlet pipe (22) and is in communication with the dust removal pipe (21), so that air and dust in the dustproof cover (6) enter the dust removal pipe (21) through the plurality of air inlet holes (211), and the dust removal assembly (3) is used for removing dust and making the dust-removed air blow out through the plurality of air outlet holes (221); The noise reduction mechanism (5) is arranged on the inner side wall of the dustproof cover (6) and in the air outlet pipe (22) and is used for removing noise; The dust removal assembly (3) includes: A dust storage pipe (31) is arranged on the lower surface of the dust removal pipe (21) and is vertically downward and in communication with the dust removal pipe (21); An output pipe (32) is arranged on the dust removal pipe (21) and extends into the dust storage pipe (31) and is in communication with the fan (23), and the fan (23) is started to make gas input into the air outlet pipe (22) through the output pipe (32); A dust removal cloth bag (33) is arranged at the connection between the output pipe (32) and the dust storage pipe (31) and is used for removing dust in air; The dust storage pipe (31) is provided with a cleaning assembly (4) for cleaning the dust removal cloth bag (33), and the cleaning assembly (4) includes: A dust storage valve (41) is arranged at the bottom of the dust storage pipe (31) and is used for controlling the opening and closing of the dust storage pipe (31); A control panel (42) is slidingly arranged on the dust removal pipe (21) and is used for controlling the communication or closing of the connection between the dust removal pipe (21) and the dust storage pipe (31); A replacement pipe (43) is in communication with the air inlet of the fan (23); An air inlet pipe (44) is in communication with the outside and is connected with the output pipe (32) and the replacement pipe (43) through a three-way valve (441), A backflush pipe (45) is arranged on the lower surface of the air outlet pipe (22) and is in communication with the output pipe (32); A control door (46) is rotationally arranged on the inner bottom wall of the air outlet pipe (22); A blocking strip (47) is arranged on the inner top wall of the air outlet pipe (22); A wind speed detector (48) is arranged on the air outlet pipe (22) and is electrically connected with the dust storage valve (41), the control panel (42), the control door (46) and the three-way valve (441); A collection cloth bag (49) is detachably arranged at the bottom of the dust storage pipe (31) and is used for collecting the falling dust in the dust storage pipe (31). The ash storage valve (41) closes the ash storage pipe (31), and the three-way valve (441) controls the communication between the replacement pipe (43) and the output pipe (32), so that the control door (46) is horizontally arranged on the bottom wall of the air outlet pipe (22) to block the backflushing pipe (45) and the control plate (42) controls the communication between the dust removal pipe (21) and the ash storage pipe (31); or the ash storage valve (41) opens the ash storage pipe (31), and the three-way valve (441) controls the communication between the replacement pipe (43) and the air inlet pipe (44), the control door (46) is turned to a vertical state and is positioned against the blocking strip (47) and is used for guiding the air in the air outlet pipe (22) into the backflushing pipe (45), and the control plate (42) closes the control ash storage pipe (31) and the dust removal pipe (21) and is used for cleaning the dust on the dust removal bag (33) and falling into the collection bag (49) for collection. The protective cover (6) comprises: a plurality of protective frame units (61) are movably connected together through a connecting assembly (8), each of the protective frame units (61) is provided with a protective air film (62) and is detachably provided with a rolling wheel (63) at the bottom, and the plurality of protective frame units (61) are mutually spliced to enable the plurality of protective air films (62) to be mutually pressed and sealed; a positioning assembly (7) is used for positioning the protective frame units (61); the connecting assembly (8) comprises: two connecting blocks (81) are respectively arranged on the two protective frame units (61); two rotating balls (82) are respectively rotatably installed on the two connecting blocks (81) and are connected through a connecting rod (84); a spring (83) is sleeved on the connecting rod (84) and is pressed against the two connecting blocks (81); the noise reduction mechanism (5) comprises: a first noise reduction plate (51) and a second noise reduction plate (52) are respectively arranged on the inner side walls of the air outlet pipe (22) and the protective cover (6) and are both provided with a plurality of noise reduction holes for noise reduction; a noise reduction piece (53) is arranged in the protective cover (6) and actively generates sound waves to remove noise; a noise detector is used for detecting the noise in the protective cover (6) and adjusting the parameters of the sound waves emitted by the noise reduction piece (53) according to the detection result.

2. The dust and noise control device for municipal construction work according to claim 1, characterized in that: A ventilation opening (11) for vehicles to pass through is formed in the protective cover (6), a plurality of door curtains (12) are arranged in the protective cover (6) and are spaced apart from each other near one side of the ventilation opening (11), a construction area (13) is formed by the protective cover (6) and the door curtain (12) farthest from the ventilation opening (11), a buffer area (14) for buffering is formed between the door curtain (12) and the protective cover (6), a jet pipe (16) for jet cleaning vehicles is arranged in the buffer area (14), and the dust collection mechanism (2) is arranged in the construction area (13) and enables the dust removal pipe (21) to extend into the buffer area (14).

3. The dust and noise control device for municipal construction work according to claim 2, characterized in that: A protective curtain (15) for closing the ventilation opening (11) is arranged at the ventilation opening (11).

4. The dust and noise control device for municipal construction work according to claim 1, characterized in that: The positioning assembly (7) comprises: a positioning screw (71) is threadedly connected to the protective frame unit (61) and is vertically arranged downward. Positioning plate (72), rotation is arranged in the bottom of the positioning screw (71) and press on the ground for positioning.

5. A control method for the control device according to any one of claims 1 to 4, characterized by: The method comprises the following control steps: The protective cover (6) is erected, so that the construction area (13) is located inside the protective cover (6), and dust and noise generated during construction are retained in the protective cover (6); Noise reduction and dust removal: the fan (23) is started, so that the air and dust enter the dust removal pipe (21) and then pass through the dust removal bag (33) to realize dust removal, the air after dust removal is blown out through the air outlet pipe (22), air in the protective cover (6) is dusted, noise is removed to the noise reduction plate one (51) and the noise reduction plate two (52), and the noise reduction part (53) generates sound waves to offset and remove the noise, so that the dust and noise are reduced.

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