Construction dust falling device for constructional engineering

Abstract

The invention discloses a construction dust falling device for building engineering, and belongs to the field of building construction dust falling equipment, the construction dust falling device comprises a fan and a purification box, and the purification box is provided with a water bin and a transfer bin; a guide plate is obliquely arranged in the water sump, screens are uniformly mounted on the bottom wall of the guide plate, a U-shaped pipe is fixedly embedded in the purification box, and the two ends of the U-shaped pipe are located in the water sump and the transfer bin respectively; nozzles are uniformly arranged on the inner side wall of the transfer bin, an air inlet is formed in the top wall of the transfer bin, and the output end of the fan communicates with the air inlet; a bracket is arranged in the transfer bin; according to the scheme, by arranging the rotating rod, the blades and the spray head, the flow speed of gas entering the transfer bin can be reduced, meanwhile, the diffusion range of the gas is expanded, and therefore the contact probability of water mist sprayed out of the spray head and particulate matter in the gas can be increased, the primary humidification and sedimentation effect on dust particulate matter in air is improved, and the workload of the water bin is reduced; and the effect of improving the air purification effect is achieved.

Description

Technical Field

[0001] The invention relates to the field of construction dust reduction equipment, and more specifically, to a construction dust reduction device for a building project. Background Art

[0002] A construction project refers to an engineering entity formed through the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. A construction project is the planning, investigation, design, construction, completion and other technical work and completed engineering entities for the construction, reconstruction or expansion of buildings and ancillary structures and facilities, as well as the installation of supporting lines, pipelines, and equipment.

[0003] Construction projects will generate a lot of dust during construction, which will not only pollute the surrounding environment, but also have adverse effects on the health of construction workers and surrounding residents. Therefore, dust suppression devices are needed during construction. Especially during interior decoration, if the indoor environment cannot be dusted in time, it will cause damage to the health of construction workers.

[0004] When cutting tiles or walls or breaking through walls indoors, a large amount of dust will be generated and dispersed in the air. As the dust concentration in the air increases, the load of the dust reduction device will also increase accordingly. For ordinary dust reduction devices, their design can usually only handle a certain amount of dust. Once the amount of dust exceeds its processing capacity, the dust reduction effect will be significantly deteriorated, and even the exhaust gas may still contain a large amount of dust particles, making it impossible to effectively remove the dust particles in the air.

[0005] Therefore, a construction dust reduction device for a building project is proposed. Summary of the invention

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a construction dust reduction device for construction projects, which can ensure the purification effect of the dust reduction device when the dust content in the air increases and improve the cleaning effect of dust particles in the air.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A construction dust reduction device for a building project comprises a fan and a purification box, wherein the purification box is provided with a water tank and a transfer tank;

[0009] A guide plate is inclined in the water bin, a screen is evenly installed on the bottom wall of the guide plate, a U-shaped tube is fixedly embedded in the purification box, and the two ends of the U-shaped tube are respectively located in the water bin and the transfer bin;

[0010] Nozzles are evenly arranged on the inner wall of the transfer bin, an air inlet is opened on the top wall of the transfer bin, and the output end of the fan is connected to the air inlet;

[0011] A bracket is provided in the transfer bin, a rotating rod is vertically mounted on the bracket, blades are evenly mounted on the side wall of the rotating rod, the blades are tilted, and upper stirring rods are evenly mounted on the rotating rod;

[0012] The rotating rod is provided with a guide cavity whose bottom end is connected with the transfer bin, a sponge is installed in the guide cavity, and drainage holes are evenly provided on the side wall of the guide cavity, and the drainage holes are evenly distributed on the surface of the upper stirring rod.

[0013] Furthermore, a water pump and a control module are provided on the purification box, the control module is used to control the operation of the water pump, a conduit is fixedly installed on the output end of the water pump, and a connecting mechanism for connecting the conduit and the diversion cavity is provided on the bracket;

[0014] The connecting mechanism comprises a circular ring sleeve fixedly mounted on the bracket, the rotating rod tube passes through the circular ring sleeve, an annular groove is provided on the side wall of the circular ring sleeve close to the rotating rod, the conduit extends into the annular groove, and the top of the guide cavity is connected with the annular groove.

[0015] Furthermore, a partition is fixedly installed at a position below the U-shaped tube in the transfer bin, the bottom end of the rotating rod passes through the partition, the rotating rod is rotatably inserted on the partition, and a one-way valve is embedded on the partition.

[0016] Furthermore, a horizontal plate is fixedly installed on the side wall of the upper stirring rod, and grooves are evenly opened on the surface of the horizontal plate, and the grooves are parallel to the upper stirring rod.

[0017] Furthermore, a stopper made of elastic material is fixedly mounted on the side wall of the transfer bin;

[0018] A cavity is opened on the block, and an inlet valve and a drain valve are respectively embedded on the bottom wall and side walls of the cavity. A circulation pipe extending into the water tank is installed on the output end of the drain valve, and a first filter covering the surface of the inlet valve is fixedly installed on the bottom wall of the block.

[0019] Furthermore, a baffle is hinged on the side wall of the diversion chamber, the bottom wall of the baffle is hinged to the side wall of the diversion chamber, a first elastic rope is provided between the side wall of the baffle and the bottom wall of the drainage hole, the side wall of the baffle close to the corresponding stirring rod is an inclined surface inclined upward, so that the sponge can be squeezed and contracted, and the baffle is located below the bottom layer of stirring rods.

[0020] Furthermore, an impeller is fixedly installed in the guide chamber, and the impeller rotates with the rotating rod. An opening is provided on the side wall of the guide chamber, and the guide chamber is connected with the annular groove through the opening. A second filter screen covering the surface of the opening is fixedly sleeved on the outer wall of the rotating rod, and the second filter screen is located in the annular groove. The difference between the inner diameter of the annular sleeve and the outer diameter of the rotating rod is 2 mm, and the bottom wall of the opening and the bottom wall of the annular groove are in the same plane.

[0021] Furthermore, a cavity is opened on the guide plate, the circulation pipe extends into the cavity, holes corresponding to the screen are evenly opened on the bottom wall of the cavity, a second elastic rope is fixedly installed in the holes, and a blocking block is fixedly installed on the second elastic rope.

[0022] Furthermore, a judgment module and a warning light are provided on the purification box, the warning light is controlled by the control module, and a detection module is provided in the air inlet;

[0023] The detection module is used to detect the dust concentration in the air passing through the air inlet and send the concentration data to the judgment module;

[0024] The judgment module is used to judge whether the dust concentration in the air exceeds the standard, and send the judgment result to the control module, and finally control the water pump and warning light to work through the control module.

[0025] Furthermore, the judgment module judges the received data:

[0026]

[0027] in,

[0028] C1 is the real-time concentration value of dust in the air passing through the air inlet;

[0029] C0 is the maximum dust concentration in the air that can be purified by the dust suppression device when the water pump stops working, which is the preset value;

[0030] A is the ratio of the real-time dust concentration in the air to the maximum dust concentration in the air that the dust reduction device can purify when the water pump stops working.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] (1) This solution can reduce the gas flow rate entering the transfer bin by setting a rotating rod, blades, and nozzles, and at the same time expand the diffusion range of the gas, thereby increasing the probability of contact between the water mist sprayed from the nozzle and the particles in the gas, improving the initial humidification and sedimentation effect of dust particles in the air, reducing the workload of the water bin, and playing a role in improving the purification effect of the air;

[0033] (2) This solution is provided with a sponge, a guide cavity, and a stirring rod; the stirring rod can stir the air and the water mist, further increasing the contact probability between the water mist and the particles. At the same time, the sponge absorbs water so that water adheres to the surface of the stirring rod. Therefore, when the dust particles come into contact with the stirring rod, the dust particles can also be humidified.

[0034] (3) This solution sets a water pump and a conduit; when the dust content in the air increases, water is discharged through the drainage hole, which increases the water content on the surface of the stirring rod. At the same time, part of the water discharged from the drainage hole splashes in the transfer bin, further increasing the probability of dust particles contacting water.

[0035] (4) This solution, by setting up a water pump, a control module, a detection module and a judgment module, can adjust the working state of the water pump by detecting the dust content in the air, thereby saving electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention;

[0038] Figure 3 It is a schematic diagram of the combined structure of the air inlet and the blades of the present invention;

[0039] Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0040] Figure 5 It is a schematic cross-sectional structural diagram of the rotating rod of the present invention;

[0041] Figure 6 It is a schematic cross-sectional structural diagram of the purification box of the present invention;

[0042] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at B in the middle;

[0043] Figure 8 It is a schematic cross-sectional structural diagram of the guide plate of the present invention;

[0044] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at C in the middle;

[0045] Fig.10 This is a working flow chart of the detection module, judgment module, communication module and control module of the present invention.

[0046] Description of the numbers in the figure:

[0047] 1. Fan; 2. Purification box; 3. Water tank; 4. Transfer tank; 5. Guide plate; 6. Screen; 7. U-shaped tube; 8. Nozzle; 9. Air inlet; 10. Bracket; 11. Rotating rod; 12. Blade; 13. Upper stirring rod; 14. Diversion chamber; 15. Sponge; 16. Drain hole; 17. Water pump; 18. Control module; 19. Conduit; 20. Ring sleeve; 21. Annular groove; 22. Partition; 23. One-way Valve; 24, horizontal plate; 25, groove; 26, block; 27, cavity; 28, water inlet valve; 29, drain valve; 30, circulation pipe; 31, first filter screen; 32, baffle; 33, first elastic rope; 34, impeller; 35, opening; 36, second filter screen; 37, cavity; 38, second elastic rope; 39, blocking block; 40, judgment module; 41, warning light; 42, detection module; 43, communication module. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0049] Embodiment 1:

[0050] See also Figures 1 to 10 , a construction dust reduction device for a building project, comprising a fan 1 and a purification box 2; a water tank 3 and a transfer tank 4 are provided on the purification box 2;

[0051] The water tank 3 is filled with clean water, and a guide plate 5 is obliquely provided in the water tank 3. When the gas containing dust enters the water tank 3, the gas will float in the water in the form of bubbles; a screen 6 is evenly installed on the bottom wall of the guide plate 5, and the screen 6 is used to break the bubbles, increase the probability of contact between the particles in the bubbles and the water, and improve the sedimentation effect of the particles; a U-shaped tube 7 is fixedly embedded on the purification box 2, and the U-shaped tube 7 is inverted. The two ends of the U-shaped tube 7 are respectively located in the water tank 3 and the transfer tank 4, and the end of the U-shaped tube 7 located in the water tank 3 is located below the liquid surface, and the gas in the transfer tank 4 passes through the end of the U-shaped tube 7 located in the transfer tank 4 and enters the water tank 3;

[0052] The inner wall of the transfer bin 4 is evenly provided with nozzles 8, which are used to spray water mist, and the nozzles 8 can spray water mist through an external atomizing pump, which is a prior art and will not be described in detail; an air inlet 9 is opened on the top wall of the transfer bin 4, and the output end of the fan 1 is connected to the air inlet 9;

[0053] A bracket 10 is provided in the transfer bin 4, and a rotating rod 11 is vertically rotatably installed on the bracket 10. The rotating rod 11 is located below the air inlet 9. Blades 12 are evenly circumferentially installed on the side wall of the rotating rod 11, and the blades 12 are inclined. When the dust-laden airflow discharged from the air inlet 9 hits the blades 12, the airflow direction is changed, and the blades 12 drive the rotating rod 11 to rotate. At this time, the kinetic energy of the airflow is converted into the kinetic energy of the rotating rod 11, so that the speed of the downward flow of the airflow can be reduced, and the contact time between the airflow and the water mist is prolonged. At the same time, the contact area between the dust-laden gas and the water mist is increased, and the dust reduction effect on the gas is improved. Therefore, when the airflow passes through the U-shaped tube 7 and enters the water bin 3, the amount of dust entering the water bin 3 is reduced, thereby preventing the particulate matter content in the water bin 3 from increasing rapidly.

[0054] Therefore, when the dust content in the air increases due to wall cutting, wall smashing or tile cutting, the water in the water tank 3 can be prevented from becoming turbid quickly, thereby ensuring that the water tank 3 can normally separate dust and air.

[0055] Upper stirring rods 13 are evenly mounted on the rotating rod 11 , and the dust-laden gas and the water mist are stirred by the upper stirring rods 13 , thereby increasing the contact probability between the particles in the gas and the water mist and improving the separation effect of the particles in the gas.

[0056] The rotating rod 11 is provided with a guide cavity 14 whose bottom end is connected to the transfer bin 4. A sponge 15 is installed in the guide cavity 14. Clean water is injected into the space below the U-shaped tube 7 inside the transfer bin 4, and the water mist sprayed by the nozzle 8 will also fall into the water in the transfer bin 4 after adhering to the particles; the bottom end of the rotating rod 11 is inserted below the liquid surface, so under the action of the sponge 15, the sponge 15 will absorb water. Due to the capillary phenomenon and the atmospheric pressure, the water in the sponge 15 will gradually move to the top of the sponge 15, so that water is distributed in all parts of the sponge 15; drainage holes 16 are evenly provided on the side wall of the guide cavity 14, and the drainage holes 16 are evenly distributed on the upper On the surface of the stirring rod 13, when the rotating rod 11 drives the sponge 15 to rotate, under the action of centrifugal force, the water on the sponge 15 will be thrown out in the horizontal direction. At this time, the thrown-away water flows through the drainage hole 16 to the surface of the upper stirring rod 13, so that the surface of the upper stirring rod 13 can be in a moist state. When the particles in the air come into contact with the stirring, the particles become moist, further increasing the moisture level of the particles, that is, the gravity of the particles is further increased, so that the particles can fall downward to the bottom of the transfer bin 4, further improving the separation effect of the particles and the gas, and preventing the particles from passing through the U-shaped tube 7 into the water tank 3 along with the airflow.

[0057] The sponge 15 has a large number of tiny pores, which can intercept suspended matter and particulate impurities in the water. Therefore, during the water absorption process, the sponge 15 can block the wet particles in the water at the bottom of the transfer bin 4 to prevent the particles from being suspended in the air again. At the same time, the dust particles attached to the surface of the sponge 15 can be thrown off by rotation, thereby ensuring that the water can contact the sponge 15.

[0058] A water pump 17 and a control module 18 are provided on the purification box 2. The water pump 17 is arranged at the top of the water tank 3 and is used to absorb clean water in the water tank 3. The control module 18 is used to control the operation of the water pump 17. A conduit 19 is fixedly installed on the output end of the water pump 17. The conduit 19 is used to provide water to the diversion chamber 14, and a connecting mechanism for connecting the conduit 19 and the diversion chamber 14 is provided on the bracket 10. The water in the conduit 19 is transferred to the diversion chamber 14 through the connecting mechanism. When the dust content in the transfer chamber 4 is too large, the water in the diversion chamber 14 is discharged through the drainage hole 16. At this time, the water content on the surface of the stirring rod is increased, and the dust adhering to the surface of the stirring rod can be transferred in time, thereby improving the humidification effect of the stirring rod on the dust. At the same time, the water discharged from the drainage hole 16 splashes, further improving the humidification effect on the dust particles in the transfer chamber 4.

[0059] like Figure 3 , Figure 4 and Figure 5 As shown, the connecting mechanism includes an annular sleeve 20 fixedly mounted on the bracket 10, the rotating rod 11 tube passes through the annular sleeve 20, and an annular groove 21 is provided on the side wall of the annular sleeve 20 close to the rotating rod 11. The conduit 19 extends into the annular groove 21, so the moisture discharged by the conduit 19 can fill the space between the annular groove 21 and the side wall of the rotating rod 11, and the top of the guide cavity 14 is connected with the annular groove 21, so the moisture in the annular groove 21 will enter the guide cavity 14 and flow downward along the guide cavity 14.

[0060] like Figure 6 As shown, a partition 22 is fixedly installed at the position below the U-shaped tube 7 in the transfer bin 4, and the transfer bin 4 is divided into two spaces by the partition 22. The bottom end of the rotating rod 11 passes through the partition 22, and the rotating rod 11 is rotatably inserted on the partition 22, so the rotating rod 11 can rotate normally, and a one-way valve 23 is embedded on the partition 22; during the rotation of the rotating rod 11, the moisture below the partition 22 is gradually transferred, so the moisture containing a large amount of dust particles above the partition 22 will pass through the one-way valve 23 and enter the space below the partition 22, and the sponge 15 has a filtering effect, so the dust particles can be automatically collected in the space below the partition 22 during operation, thereby reducing the probability of impurities suspended on the water surface being blown by the airflow and entering the water tank 3 again with the airflow, thereby reducing the workload of the water tank 3.

[0061] like Figure 4 As shown, a horizontal plate 24 is fixedly installed on the side wall of the upper stirring rod 13. Since the pressure is small where the air flow rate is large, during the rotation of the upper stirring rod 13, the air and water mist above and below the upper stirring rod 13 tend to approach the horizontal plate 24, and part of the water discharged from the drainage hole 16 contacts the horizontal plate 24. Therefore, the surface of the horizontal plate 24 is also in a moist state, so dust particles in the air can be adsorbed onto the surface of the horizontal plate 24. At the same time, by making the dust particles moist, the gravity of the dust particles can be increased, thereby preventing the dust particles from entering the U-shaped tube 7 with the air flow; grooves 25 are evenly arranged on the surface of the horizontal plate 24. By providing the grooves 25, the surface area of ​​the horizontal plate 24 is increased, and the contact area between the dust particles suspended in the air and the moist horizontal plate 24 is further increased. The grooves 25 are parallel to the upper stirring rod 13. By making the grooves 25 parallel to the upper stirring rod 13, the moist particles in the grooves 25 can be easily thrown out.

[0062] like Figure 6 As shown, a stopper 26 made of elastic material is fixedly mounted on the side wall of the transfer bin 4. The stopper 26 made of elastic material can be deformed, and the side wall of the stopper 26 close to the rotating rod 11 is an inclined surface. By setting the side wall of the stopper 26 as an inclined surface, the resistance of the upper stirring rod 13 when it hits the stopper 26 is reduced. Therefore, when the upper stirring rod 13 hits the stopper 26, the stopper 26 is deformed, ensuring that the upper stirring rod 13 can rotate normally, and at the same time, the rotation speed of the upper stirring rod 13 can be changed;

[0063] Since the water mist and air will rotate with the upper stirring rod 13 during the rotation of the upper stirring rod 13, the probability of contact between the water mist and the particles in the air is small at this time. Therefore, by setting the block 26, the speed of the upper stirring rod 13 can be suddenly changed. At this time, the water mist and the particles in the air rotating with the upper stirring rod 13 will collide with the surface of the upper stirring rod 13 in the deceleration state under the action of inertia, further improving the mixing effect of the water mist and the air, and improving the humidification and sedimentation effect of the particles in the air.

[0064] The upper stirring rod 13 and the stopper 26 are both in a humid environment, so that the friction between the upper stirring rod 13 and the stopper 26 can be reduced when the upper stirring rod 13 slides on the surface of the stopper 26, thereby protecting the upper stirring rod 13 and the stopper 26.

[0065] A cavity 27 is provided on the stopper 26. When the stopper 26 is squeezed by the upper stirring rod 13, the cavity 27 is also squeezed. At this time, the cavity 27 is in a high-pressure state. A water inlet valve 28 and a drain valve 29 are respectively embedded on the bottom wall and the side wall of the cavity 27. When the cavity 27 is in a high-pressure state, the cavity 27 is depressurized through the drain valve 29. A circulation pipe 30 extending into the water tank 3 is installed on the output end of the drain valve 29. The water discharged from the drain valve 29 flows back to the water tank 3 along the circulation pipe 30 to ensure that there is enough water in the water tank 3. When the upper stirring rod 13 is out of contact with the stopper 26, the stopper 26 is restored. At this time, the cavity 27 absorbs water from above the partition 22 through the water inlet valve 28, so it can The water pumped from the water tank 3 to the transfer tank 4 by the water pump 17 is transferred in time, which ensures that the gas in the transfer tank 4 can enter the U-shaped tube 7; and a first filter screen 31 covering the surface of the water inlet valve 28 is fixedly installed on the bottom wall of the stopper 26; by setting the first filter screen 31, the particles in the transfer tank 4 can be prevented from being sucked into the cavity 27, which ensures that the water flowing back into the water tank 3 is clean water. At the same time, when the upper stirring rod 13 is out of contact with the stopper 26, the stopper 26 made of elastic material will recover and shake back and forth under the action of inertia. During the shaking process, the particles attached to the surface of the first filter screen 31 can be shaken off, which ensures that the water inlet valve 28 can absorb water.

[0066] like Figure 7 As shown, a baffle 32 is hinged on the side wall of the diversion chamber 14, and the bottom wall of the baffle 32 is hinged to the side wall of the diversion chamber 14. A first elastic rope 33 is provided between the side wall of the baffle 32 and the bottom wall of the drainage hole 16. When the water pump 17 is not working, under the action of the first elastic rope 33, the baffle 32 fits the side wall of the diversion chamber 14, and the water absorbed by the sponge 15 can move upward normally. When the water pump 17 is working, the diversion chamber 14 drains downward, so the water flowing downward along the diversion chamber 14 will enter the space between the baffle 32 and the side wall of the diversion chamber 14, and the baffle 32 is close to the side of the corresponding stirring rod. The side wall is an upwardly inclined slope. At this time, under the impact force of the downwardly flowing water, the baffle 32 rotates and the first elastic rope 33 is stretched, so that the sponge 15 can be squeezed through the baffle 32, thereby squeezing and shrinking the sponge 15. The baffle 32 is located below the bottom stirring rod, so as to prevent the water in the guide cavity 14 from being discharged, and ensure that the water can be discharged through the drainage hole 16. Therefore, it can not only increase the water content on the surface of the stirring rod, but also make the water discharged from the drainage hole 16 splash in the transfer bin 4, further improving the humidification and sedimentation effect of the dust particles in the transfer bin 4.

[0067] At the same time, when the baffle 32 squeezes the sponge 15, it can prevent water from continuing to move up along the sponge 15, thereby reducing the adsorption force of the part of the sponge 15 outside the guide cavity 14 on the dust particles, ensuring that the dust particles can be thrown away.

[0068] like Figure 5 As shown, an impeller 34 is fixedly installed in the guide chamber 14, and the impeller 34 rotates with the rotating rod 11, thereby providing a negative pressure environment in the guide chamber 14, which ensures that the sponge 15 can absorb water normally. An opening 35 is opened on the side wall of the guide chamber 14, and the guide chamber 14 is connected with the annular groove 21 through the opening 35. A second filter screen 36 covering the surface of the opening 35 is fixedly sleeved on the outer wall of the rotating rod 11, and the second filter screen 36 is located in the annular groove 21. Therefore, particulate matter in the water discharged from the water pump 17 will be filtered by the second filter screen 36, which can prevent particulate matter from entering the sponge 15, and prevent the sponge 15 from being blocked. At the same time, during the rotation of the impeller 34, the top of the guide chamber 14 can be exhausted outward, so that when the water pump 17 stops working, the air flow can impact the second filter screen 36. The impurities on the surface of the second filter screen 36 play a role in ensuring that the second filter screen 36 remains unobstructed. The difference between the inner diameter value of the annular sleeve 20 and the outer diameter value of the rotating rod 11 is 2mm, which reduces the resistance of the rotating rod 11, so that the rotating rod 11 can rotate normally, and during the operation of the water pump 17, part of the water flow in the annular groove 21 will be discharged through the gap between the annular sleeve 20 and the rotating rod 11, so that the particles in the annular groove 21 can be cleaned up. The ratio of the cross-sectional area of ​​the diversion cavity 14 to the surface area of ​​the annular ring formed between the inner wall of the annular sleeve 20 and the outer wall of the rotating rod 11 is 8-10; the bottom wall of the opening 35 is in the same plane as the bottom wall of the annular groove 21, so most of the water flow in the annular groove 21 will enter the diversion cavity 14, which plays a role in ensuring that the diversion cavity 14 can be supplied with water.

[0069] like Figure 8 , Fig. 9 As shown, a cavity 37 is provided on the guide plate 5, and the circulation pipe 30 extends into the cavity 37, so that the water discharged from the circulation pipe 30 will enter the cavity 37, and holes corresponding to the screen 6 are evenly provided on the bottom wall of the cavity 37. The water in the cavity 37 is discharged through the holes, thereby exerting a downward impact force on the bubbles floating along the bottom wall of the guide plate 5, which can impact the bubbles into small bubbles and prolong the time of the bubbles in the water, further increasing the probability of contact between the particles in the bubbles and the water, and improving the humidification and sedimentation effect on the dust particles.

[0070] A second elastic rope 38 is fixedly installed in the hole, and a blocking block 39 is fixedly installed on the second elastic rope 38. The second elastic rope 38 pulls the blocking block 39 to block the hole, thereby preventing bubbles containing dust particles from passing through the hole into the cavity 37, ensuring that the cavity 37 remains clean; when the cavity 37 is drained through the hole, the blocking block 39 is separated from the hole under the action of the impact force of the water flow, and under the action of the second elastic rope 38, the blocking block 39 shakes, thereby changing the impact direction of the water discharged from the hole, further improving the crushing and impact effect on the bubbles.

[0071] like Figure 1 and Fig.10 As shown, the purification box 2 is provided with a judgment module 40, a communication module 43 and a warning light 41, the warning light 41 and the communication module 43 are both controlled by the control module 18, and a detection module 42 is provided in the air inlet 9;

[0072] The detection module 42 is used to detect the dust concentration in the air passing through the air inlet 9 and send the concentration data to the judgment module 40;

[0073] The judgment module 40 is used to judge whether the dust concentration in the air exceeds the standard, and send the judgment result to the control module 18, and finally control the water pump 17, the communication module 43 and the warning light 41 to work through the control module 18;

[0074] The communication module 43 is connected to the central control system and the environmental monitoring system of the project site to send warning information of excessive dust concentration. Therefore, when the staff does not notice the warning light 41, the warning information is sent to the environmental monitoring system in time, so that the personnel operating the environmental monitoring system can remind the construction personnel, so that the construction personnel can receive the early warning information in time, so as to take countermeasures such as suspending construction and strengthening local dust reduction measures, so as to further ensure the safety of the construction environment and the quality of the surrounding environment.

[0075] The judgment module 40 judges the received data:

[0076]

[0077] in,

[0078] C1 is the real-time concentration value of dust in the air passing through the air inlet 9;

[0079] C0 is the maximum concentration of dust in the air that can be purified by the dust reduction device when the water pump 17 stops working, which is a preset value;

[0080] A is the ratio of the real-time dust concentration in the air to the maximum dust concentration in the air that can be purified by the dust suppression device when the water pump 17 stops working;

[0081] when:

[0082] 0<A≤1, the control module 18 controls the water pump 17 to be turned off;

[0083] When 1<A, the control module 18 controls the water pump 17, and the control module 18 controls the warning light 41 and the communication module 43 to work, reminding the staff that the dust content in the environment is high and to pay attention to protection; therefore, when the dust content is low, the water pump 17 does not need to work, which saves electricity.

[0084] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A construction dust reduction device for a building project, comprising a fan (1) and a purification box (2), wherein the purification box (2) is provided with a water tank (3) and a transfer tank (4); Features: A guide plate (5) is obliquely provided in the water bin (3), a screen (6) is evenly installed on the bottom wall of the guide plate (5), a U-shaped tube (7) is fixedly embedded in the purification box (2), and the two ends of the U-shaped tube (7) are respectively located in the water bin (3) and the transfer bin (4); Nozzles (8) are evenly arranged on the inner wall of the transfer bin (4), an air inlet (9) is opened on the top wall of the transfer bin (4), and the output end of the fan (1) is connected to the air inlet (9); A support (10) is provided in the transfer bin (4), a rotating rod (11) is vertically rotatably mounted on the support (10), blades (12) are evenly circumferentially mounted on the side wall of the rotating rod (11), the blades (12) are tilted, and upper stirring rods (13) are evenly mounted on the rotating rod (11); The rotating rod (11) is provided with a guide cavity (14) whose bottom end is connected to the transfer bin (4), a sponge (15) is installed in the guide cavity (14), and drainage holes (16) are evenly provided on the side wall of the guide cavity (14), and the drainage holes (16) are evenly distributed on the surface of the upper stirring rod (13).

2. The construction dust suppression device for construction engineering according to claim 1, characterized in that: The purification box (2) is provided with a water pump (17) and a control module (18), the control module (18) is used to control the operation of the water pump (17), a conduit (19) is fixedly mounted on the output end of the water pump (17), and the bracket (10) is provided with a connecting mechanism for connecting the conduit (19) and the diversion chamber (14); The communication mechanism comprises a circular sleeve (20) fixedly mounted on the bracket (10), the rotating rod (11) tube passes through the circular sleeve (20), a circular groove (21) is formed on the side wall of the circular sleeve (20) close to the rotating rod (11), the conduit (19) extends into the circular groove (21), and the top end of the guide cavity (14) is communicated with the circular groove (21).

3. The construction dust suppression device for construction engineering according to claim 2, characterized in that: A partition (22) is fixedly installed at a position below the U-shaped tube (7) in the transfer bin (4); the bottom end of the rotating rod (11) passes through the partition (22); the rotating rod (11) is rotatably inserted on the partition (22); and a one-way valve (23) is embedded on the partition (22).

4. The construction dust suppression device for construction engineering according to claim 3, characterized in that: A transverse plate (24) is horizontally fixedly mounted on the side wall of the upper stirring rod (13), and grooves (25) are evenly formed on the surface of the transverse plate (24), and the grooves (25) are parallel to the upper stirring rod (13).

5. The construction dust suppression device for construction engineering according to claim 4, characterized in that: A stopper (26) made of elastic material is fixedly mounted on the side wall of the transfer bin (4); The block (26) is provided with a cavity (27), and a water inlet valve (28) and a water discharge valve (29) are respectively embedded on the bottom wall and the side wall of the cavity (27), and a circulation pipe (30) extending into the water tank (3) is installed on the output end of the water discharge valve (29), and a first filter screen (31) covering the surface of the water inlet valve (28) is fixedly installed on the bottom wall of the block (26).

6. The construction dust suppression device for construction engineering according to claim 5, characterized in that: A baffle (32) is hingedly connected to the side wall of the diversion cavity (14); the bottom wall of the baffle (32) is hingedly connected to the side wall of the diversion cavity (14); a first elastic rope (33) is provided between the side wall of the baffle (32) and the bottom wall of the drainage hole (16); the side wall of the baffle (32) close to the corresponding stirring rod is an inclined surface inclined upward, so that the sponge (15) can be squeezed and contracted; and the baffle (32) is located below the stirring rod at the bottom layer.

7. The construction dust suppression device for construction engineering according to claim 6, characterized in that: An impeller (34) is fixedly installed in the guide chamber (14), and the impeller (34) rotates together with the rotating rod (11). An opening (35) is provided on the side wall of the guide chamber (14), and the guide chamber (14) is communicated with the annular groove (21) through the opening (35). A second filter screen (36) covering the surface of the opening (35) is fixedly sleeved on the outer wall of the rotating rod (11), and the second filter screen (36) is located in the annular groove (21). The difference between the inner diameter of the annular sleeve (20) and the outer diameter of the rotating rod (11) is 2 mm, and the bottom wall of the opening (35) and the bottom wall of the annular groove (21) are in the same plane.

8. The construction dust suppression device for construction engineering according to claim 7, characterized in that: The guide plate (5) is provided with a cavity (37), the circulation pipe (30) extends into the cavity (37), the bottom wall of the cavity (37) is evenly provided with holes corresponding to the screen (6), a second elastic rope (38) is fixedly installed in the hole, and a blocking block (39) is fixedly installed on the second elastic rope (38).

9. The construction dust suppression device for construction engineering according to claim 8, characterized in that: The purification box (2) is provided with a judgment module (40), a communication module (43) and a warning light (41), the warning light (41) is controlled by a control module (18), and a detection module (42) is provided in the air inlet (9); The detection module (42) is used to detect the dust concentration in the air passing through the air inlet (9) and send the concentration data to the judgment module (40); The judgment module (40) is used to judge whether the dust concentration in the air exceeds the standard, and send the judgment result to the control module (18), and finally control the water pump (17), the communication module (43) and the warning light (41) to work through the control module (18).

10. The construction dust suppression device for construction engineering according to claim 9, characterized in that: The judgment module (40) judges the received data: in, C1 is the real-time concentration value of dust in the air passing through the air inlet (9); C0 is the maximum concentration of dust in the air that can be purified by the dust suppression device when the water pump (17) stops working, which is a preset value; A is the ratio of the real-time dust concentration in the air to the maximum dust concentration in the air that can be purified by the dust suppression device when the water pump (17) stops working.

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