An environmentally friendly dust reduction device for canal blasting construction and its application method

Abstract

The present invention relates to the technical field of blasting construction, and proposes an environmentally friendly dust suppression device for canal blasting construction and an application method thereof, comprising a water tank, a longitudinal beam, a spray pipe and a filter screen, wherein two longitudinal beams are arranged opposite to each other in the water tank; and the two ends of a plurality of spray pipes are respectively slidably connected to a longitudinal beam; the two sides of the filter screen are respectively slidably connected to a longitudinal beam; when the device is not working, there is a first preset spacing between the spray pipes, and the filter screen is folded in the water tank; when the device is working, there is a second preset spacing between the spray pipes, and the second preset spacing is greater than the first preset spacing, and the filter screen is unfolded and extends out through the top surface opening of the water tank. The present invention facilitates sliding adjustment of the spacing of the spray pipes, and can also unfold or store the filter screen, and can suppress dust by spraying water through the spray pipe, or by spraying water onto the filter screen, and then relying on the filter screen to adsorb smoke and dust; it has the advantages of adjustable dust suppression range, and is convenient for cleaning the filter screen, and has good application stability.

Description

Technical Field

[0001] The invention relates to the technical field of blasting construction, and in particular to an environmentally friendly dust reduction device for canal blasting construction and an application method thereof. Background Art

[0002] During large-scale blasting construction, a variety of dust reduction measures are usually adopted, among which watering before and after blasting is widely used. In some construction processes, dust-proof nets and dust-proof cloths are also used to reduce dust. For construction environments with conditions, enclosures are also set up to reduce the spread of dust.

[0003] At present, the research on dust reduction during blasting construction mainly focuses on dust reduction during tunnel blasting construction, because tunnels are relatively closed, so the deployment of dust reduction equipment has a better effect and is convenient for subsequent construction. In open-air blasting construction, due to the large scope, water spraying methods such as fog cannons are often used for dust reduction, but the dust reduction effect is limited, and due to site restrictions, the vehicle equipped with the fog cannon is not convenient to move, which further limits the dust reduction effect.

[0004] The utility model patent with the existing authorization announcement number CN207445845U discloses a spray dust reduction device for engineering blasting construction, including a water storage unit, a spray unit and a traction device for traction of the spray unit to the blasting area for spray dust reduction. The water storage unit includes a water storage tank, a filter device, a pipeline pressure pump and a water outlet pipe. The filter device is arranged on one side of the water storage tank. A filter sponge is arranged in the filter device. The water outlet end of the filter device is connected to the water inlet end of the water outlet pipe. The pipeline pressure pump is arranged on the water outlet pipe; the spray unit includes a main water pipe and a plurality of branch water pipes. A plurality of atomizing nozzles are arranged at intervals on the branch water pipes. Each atomizing nozzle is provided with an on-off solenoid valve. The end of the branch water pipe is provided with a traction hook; the traction device is connected to the traction hook;

[0005] As in the above scheme, a traction device is used to pull the branch water pipe to carry out dust reduction work in a larger area. However, due to the limitation of the terrain after the blasting, the land vehicle cannot pull the branch water pipe to move well. However, in the case of using drones, the impact of blasting dust on the drone propeller is greater, which will cause wear of mechanical parts; at the same time, since dust changes the density and flow characteristics of the air, it will affect the stability and control accuracy of the drone flight, and cause signal attenuation problems, which increases the possibility of the drone losing control, and then causes the problem of excessive dust reduction costs. Summary of the invention

[0006] In view of this, the present invention proposes an environmentally friendly dust reduction device for canal blasting construction, which has stable application and can adapt to adjust the dust reduction range, and an application method thereof, thereby solving the problems of unstable application and high cost of existing dust reduction devices for blasting construction.

[0007] The technical solution of the present invention is achieved in this way:

[0008] On the one hand, the present invention provides an environmentally friendly dust reduction device for canal blasting construction and an application method thereof, comprising a water tank, a longitudinal beam, a spray pipe and a filter screen, wherein:

[0009] The water tank is a hollow structure, and the top surface of the water tank is open;

[0010] Two longitudinal beams are arranged opposite to each other in the water tank, and the ends of the longitudinal beams extend outside the water tank;

[0011] A plurality of spray pipes are arranged in parallel, and both ends of the plurality of spray pipes are respectively connected to a longitudinal beam in a sliding manner;

[0012] Both sides of the filter are slidably connected to a longitudinal beam;

[0013] When the environmental dust suppression device for canal blasting construction is not working, there is a first preset distance between the spray pipes, and the filter screen is folded in the water tank;

[0014] When the environmental protection dust suppression device for canal blasting construction is working, the distance between the spray pipes is adjusted to a second preset distance, the second preset distance is larger than the first preset distance, and the filter is unfolded and extends out through the top opening of the water tank.

[0015] On the basis of the above technical solution, preferably, the longitudinal beam includes a first beam frame and a second beam frame, and the filter screen includes a mesh body and a slider, wherein:

[0016] The first beam frame and the second beam frame are arranged in parallel;

[0017] The spray pipe is slidably connected to the first beam frame;

[0018] The bottom end of the net body is fixedly connected to the water tank or the second beam frame;

[0019] The sliding block is arranged on the top of the net body, and the sliding block is slidably connected with the second beam frame.

[0020] On the basis of the above technical solution, preferably, it further comprises a plurality of sliding assemblies arranged in parallel, the sliding assemblies comprising a truss, a connecting shaft and a pulley block, wherein:

[0021] The truss is arranged between two longitudinal beams, and the spray pipe is arranged on the truss;

[0022] A connecting shaft is provided at each end of the truss, and the ends of the connecting shaft are connected to the truss;

[0023] A pulley block is provided at each end of the two connecting shafts away from the truss;

[0024] The pulley block abuts against the first beam.

[0025] On the basis of the above technical solution, preferably, it also includes a transverse wind knife and a longitudinal wind knife, wherein:

[0026] The truss has a first plate surface parallel to the horizontal plane or with an angle less than 45 degrees, and a second plate surface perpendicular to the horizontal plane, and one side of the second plate surface is connected to one side of the first plate surface to form a right-angle plate shape or an acute-angle plate shape;

[0027] Both ends of the truss are closed by end blocks, and a leak hole is provided at the connection between the first plate surface and the second plate surface;

[0028] The end of the spray pipe is connected to the end block, and a nozzle is provided on the spray pipe toward the first plate surface;

[0029] The end block is a hollow structure, and a water outlet is arranged on the end block toward the first plate surface;

[0030] The transverse air knife is arranged on the second plate surface, and the air outlet of the transverse air knife faces between the first plate surface and the spray pipe;

[0031] The longitudinal wind knife is arranged on the second beam frame, and the air outlet of the longitudinal wind knife faces between the filter screen and the spray pipe.

[0032] On the basis of the above technical solution, preferably, the first beam frame includes U-shaped channel steel and hollow tube, and the second beam frame includes rectangular tube and side plate, wherein:

[0033] Four hollow tubes are arranged in a rectangular array on the inner side of the U-shaped channel steel, and the two ends of the wheel axle of the pulley block are limited by two hollow tubes respectively;

[0034] The rectangular tube is arranged on one side of the U-shaped channel steel, and the rectangular tube is provided with at least two flow passages parallel in the longitudinal direction;

[0035] The side plate is arranged on one side of the rectangular tube, and the sliding block is slidably arranged in a slideway between the rectangular tube and the side plate;

[0036] The longitudinal air knife is connected to the rectangular tube;

[0037] The rectangular tube has at least one flow channel intersecting with the longitudinal air knife, and at least one flow channel intersecting with the slideway.

[0038] On the basis of the above technical solution, preferably, the truss further includes a spiral tube, both ends of the spiral tube are connected to an end block respectively, and the spiral tube surrounds the first plate surface, the second plate surface and the spray pipe;

[0039] The middle section of the spiral tube is fixed to the first plate surface and the second plate surface, and a plurality of nozzles are opened on the tube wall of the spiral tube.

[0040] On the basis of the above technical solution, preferably, it further comprises a connecting member, the connecting member comprises a support rod, a connecting plate and a cable, wherein:

[0041] One support rod is rotatably disposed on each of the connecting shafts of the plurality of sliding assemblies;

[0042] A connecting plate is fixedly disposed on each connecting shaft of the plurality of sliding components;

[0043] Among the two adjacent connecting shafts, the support rod on the lower connecting shaft is connected to the connecting plate on the upper connecting shaft through a cable.

[0044] On the basis of the above technical solution, preferably, the connecting member further includes a positioning rod and a stopper, wherein:

[0045] In the plurality of sliding assemblies, the positioning rods and the stoppers are arranged on the connecting shafts at intervals, and the connecting shafts of each sliding assembly are provided with the positioning rods or the stoppers;

[0046] The middle section of the positioning rod is rotatably connected to the connecting shaft, with the axis of the connecting shaft as the boundary, the mass of one end of the positioning rod is greater than the mass of the other end, and the end of the positioning rod is clamped with the adjacent connecting shaft;

[0047] The stopper is slidably connected to the connecting shaft.

[0048] On the basis of the above technical solution, preferably, it further comprises a limit frame, the limit frame comprises a longitudinal plate and a plug plate, wherein:

[0049] The longitudinal plate is arranged on a side of the first beam away from the spray pipe, and one end of the longitudinal plate is rotatably connected to the first beam;

[0050] A plurality of plug plates are arranged on one side of the longitudinal plate facing the first beam frame, and the plug plates are spaced apart from each other by a second preset spacing;

[0051] A slot is provided on the surface of the first beam frame facing the longitudinal plate.

[0052] On the other hand, the present invention provides an application method of the above-mentioned canal blasting construction environmental protection dust reduction device, comprising the following steps:

[0053] S1. Install the environmental dust suppression device for the canal blasting construction at the downwind of the blasting area;

[0054] S2, adjusting the distance between the spray pipes to a second preset distance;

[0055] S3. Expand the filter screen so that it is located in front of the spray pipe;

[0056] S4, supplying water to the spray pipe, and spraying water onto the filter through the spray pipe;

[0057] S5. During blasting, the smoke and dust generated flows toward the filter and is adsorbed by the filter. The spray pipe flushes the smoke and dust adsorbed on the filter, causing the smoke and dust to gather and fall. At the same time, the water sprayed from the spray pipe adsorbs the smoke and dust.

[0058] S6. After the dust reduction is completed, the filter screen falls back into the water tank for washing, and the distance between the spray pipes is adjusted to a first preset distance.

[0059] The environmentally friendly dust suppression device for canal blasting construction and its application method of the present invention have the following beneficial effects compared with the prior art:

[0060] (1) By arranging a longitudinal beam in the water tank for slidingly installing the spray pipe and the filter, it is convenient to slide and adjust the spacing of the spray pipe, and the filter can also be unfolded or stored. In this way, the device can suppress dust by spraying water through the spray pipe, or spray water onto the filter, and then rely on the filter to absorb the smoke and dust; the sliding adjustment method makes it have the advantage of adjustable dust suppression range and convenient for cleaning the filter; since the device does not require precision devices, it is less affected by dust and has good application stability;

[0061] (2) By setting up a truss for installing a spray pipe, after the water flow is sprayed out of the spray pipe, it can be further blown away by the wind knife on the truss, thereby achieving a better smoke and dust spraying effect. When the filter is used, it is conducive to the uniform spraying of water mist onto the filter, thereby ensuring the adsorption effect of the filter. At the same time, due to the continuous supply of water flow, the filter can be cleaned to extend the application cycle of the filter;

[0062] (3) The truss has a first plate surface that is parallel to the horizontal plane or has an angle less than 45°, and a leakage hole is provided at the connection between the first plate surface and the second plate surface. In this way, when it is used, it is not necessary to use the wind knife assistance. When the two ends of the truss are closed by end blocks, the truss can receive the water flow from the sprinkler pipe, and the water flows down through the leakage hole to form a water curtain, which can also achieve the dust reduction effect;

[0063] (4) By arranging a spiral tube in the truss and providing a nozzle on the spiral tube, the spiral tube can realize 360-degree water spraying, thereby assisting the spray pipe and the filter screen to reduce dust, and at the same time, it can also suppress the smoke and dust that pass through the dust reduction device, thereby ensuring a good dust reduction effect;

[0064] (5) Connecting a plurality of sliding components by setting a connecting piece, so that the uppermost sliding component can be lifted by a lifting device, so that the distance between the spray pipes can be adjusted from the first preset distance to the second preset distance, thereby expanding the dust reduction area; at the same time, by setting a positioning rod, it can ensure that the positions of the plurality of spray pipes are relatively fixed, thereby ensuring application stability;

[0065] (6) By setting a limit frame, after a plurality of sprinkler pipes are adjusted to the second predetermined spacing, it can assist the positioning rod in limiting the sliding assembly, thereby ensuring stability and safety when positioning the sprinkler pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0067] Figure 1 A three-dimensional diagram of the spray pipes of the canal blasting construction environmental protection dust reduction device of the present invention maintaining a first preset distance;

[0068] Figure 2 A back perspective view of the spray pipe of the canal blasting construction environmental protection dust reduction device of the present invention maintaining a first preset distance;

[0069] Figure 3 For the present invention Figure 2 A magnified view of the structure at point A;

[0070] Figure 4 A front view of the spray pipes of the canal blasting construction environmental protection dust reduction device of the present invention maintaining a first preset spacing;

[0071] Figure 5 For the present invention Figure 4 Middle AA section view;

[0072] Figure 6 For the present invention Figure 5 A magnified view of the structure of point B in FIG.

[0073] Figure 7 A front view of the spray pipes of the canal blasting construction environmental protection dust reduction device of the present invention maintaining a second preset spacing;

[0074] Figure 8 A three-dimensional diagram of the spray pipes of the canal blasting construction environmental protection dust reduction device of the present invention maintaining a second preset distance;

[0075] Fig. 9 For the present invention Figure 8 A magnified view of the structure at point C;

[0076] Fig.10 It is a front view of the positioning rod support structure of the environmental protection dust reduction device for canal blasting construction of the present invention;

[0077] Fig.11It is a front view of the separation structure of the positioning rod and the connecting shaft of the environmental protection dust suppression device for canal blasting construction of the present invention;

[0078] Fig.12 It is a front view of the support rod support structure of the environmental protection dust reduction device for canal blasting construction of the present invention;

[0079] Fig.13 It is a schematic diagram of the sliding component falling back structure of the environmental protection dust suppression device for canal blasting construction of the present invention;

[0080] Fig.14 It is a top view of the longitudinal beam of the environmental protection dust suppression device for canal blasting construction of the present invention;

[0081] Fig.15 For the present invention Fig.14 Middle BB section;

[0082] Fig.16 It is a three-dimensional structural diagram of the truss and wind knife section of the environmental protection dust reduction device for canal blasting construction of the present invention;

[0083] Fig.17 It is a front view of the truss and wind knife section of the environmental protection dust suppression device for canal blasting construction of the present invention;

[0084] Fig.18 This is a structural diagram of the connection between the sliding assembly and the spray pipe of the environmental protection dust suppression device for canal blasting construction of the present invention;

[0085] Fig.19 A three-dimensional diagram showing a water outlet at the end block of the environmentally friendly dust suppression device for canal blasting construction of the present invention;

[0086] Fig. 20 A three-dimensional diagram of a truss of the canal blasting construction environmental protection dust suppression device of the present invention provided with a spiral tube;

[0087] In the figure: 1. water tank; 2. longitudinal beam; 21. first beam frame; 211. U-shaped channel steel; 212. hollow tube; 22. second beam frame; 221. rectangular tube; 222. side plate; 201. flow channel; 202. slideway; 3. spray pipe; 4. filter screen; 41. mesh body; 42. slider; 5. sliding assembly; 51. truss; 511. first plate surface; 512. second plate surface; 513. end block; 514. spiral tube; 52. connecting shaft; 53. pulley block; 501. water outlet; 6. horizontal wind knife; 7. longitudinal wind knife; 8. connecting piece; 81. support rod; 82. connecting plate; 83. cable; 84. positioning rod; 85. block; 9. limit frame; 91. longitudinal plate; 92. plug plate; 901. slot; 10. rotating rod; 11. support plate. DETAILED DESCRIPTION

[0088] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0089] like Figures 1 to 20 As shown, the environmentally friendly dust suppression device for canal blasting construction of the present invention comprises a water tank 1, a longitudinal beam 2, a spray pipe 3, a filter screen 4, a sliding assembly 5, a transverse wind knife 6, a longitudinal wind knife 7, a connecting piece 8 and a limit frame 9, which is used for dust suppression at a blasting construction site.

[0090] The water tank 1 is a hollow structure, and the top surface of the water tank 1 is open; two longitudinal beams 2 are arranged opposite to each other in the water tank 1, and the ends of the longitudinal beams extend outside the water tank; a plurality of spray pipes 3 are arranged in parallel, and the two ends of the plurality of spray pipes 3 are respectively slidably connected to a longitudinal beam 2; the two sides of the filter 4 are respectively slidably connected to a longitudinal beam 2; when the environmental protection dust reduction device for canal blasting construction is not working, there is a first preset distance between the spray pipes 3 and the spray pipes 3, and the filter 4 is folded in the water tank 1; when the environmental protection dust reduction device for canal blasting construction is working, the spray pipes 3 and the spray pipes 3 are adjusted to a second preset distance, the second preset distance is greater than the first preset distance, and the filter 4 is unfolded and extends out through the top surface opening of the water tank 1;

[0091] As in the above structure, when dust reduction is performed, the device is placed at the downwind port, so that the smoke and dust generated by the blasting flows toward the dust reduction device;

[0092] In the initial state, if Figure 1 , Figure 2 and Figure 4 As shown, the first preset distance is maintained between the spray pipes 3, that is, a plurality of spray pipes 3 are in a retracted state;

[0093] When in use, the spray pipe 3 is adjusted to the second preset distance. Figure 7 and Figure 8 As shown, the distance between the spray pipes 3 becomes larger, so that smoke and dust in a larger range can be suppressed;

[0094] Specifically, a nozzle is provided on the spray pipe 3 to directly spray water, or a rotary nozzle is installed to achieve spray washing and dust reduction;

[0095] Furthermore, in the present device, a filter screen 4 is also provided, which is folded in the water tank 1 for storage in the initial state, and when in use, the filter screen 4 is extended along the longitudinal beam 2 and arranged in front of the spray pipe 3;

[0096] like Figure 5 and Figure 6As shown, it shows the state of the filter screen 4 being folded in the water tank 1, and can be extended upward during operation; in this way, when performing dust reduction work, the spray pipe 3 can spray water onto the filter screen 4 to wet the filter screen 4, so that after the smoke and dust flow to the filter screen 4, the filter screen 4 can better absorb the smoke and dust, and cooperate with the spraying of the spray pipe 3, so that the overall cleaning effect of the device is good.

[0097] In specific applications, the spray pipes 3 are connected in series through a hose for water supply, and a certain length of the hose is reserved between the two spray pipes 3 to avoid interfering with the preset spacing adjustment of the spray pipes 3;

[0098] After the device has finished working, the spray pipe 3 is retracted, and the filter screen 4 is folded back into the water tank 1. At this time, the accumulated water in the water tank 1 can be used to clean the filter screen.

[0099] The longitudinal beam 2 includes a first beam frame 21 and a second beam frame 22, and the filter screen 4 includes a mesh body 41 and a slider 42, wherein the first beam frame 21 and the second beam frame 22 are arranged in parallel; the spray pipe 3 is slidably connected to the first beam frame 21; the bottom end of the mesh body 41 is fixedly connected to the water tank 1 or the second beam frame 22; the slider 42 is arranged at the top end of the mesh body 41, and the slider 42 is slidably connected to the second beam frame 22;

[0100] like Figure 5 , Figure 6 and Fig.14 As shown, the longitudinal beam 2 is divided into two parts, a first beam frame 21 and a second beam frame 22, wherein the first beam frame 21 is used to install the spray pipe 3, and the second beam frame 22 is used to install the filter screen 4;

[0101] In specific applications, the bottom end of the mesh body 41 in the filter 4 can be selectively fixed to the water tank 1 or the second beam 22 to ensure the stability of the bottom end of the filter 4, and a slider 42 is provided at the upper end, and the slider 42 can slide along the second beam 22, so that the mesh body 41 can be extended by the displacement of the slider 42 to expand the mesh body 41;

[0102] When dust is suppressed, the spray pipe 3 sprays water onto the mesh 41 so that the smoke and dust can be adsorbed through the mesh 41 .

[0103] A plurality of sliding assemblies 5 are arranged in parallel, and the sliding assemblies 5 include a truss 51, a connecting shaft 52 and a pulley block 53, wherein the truss 51 is arranged between the two longitudinal beams 2, and the spray pipe 3 is arranged on the truss 51; a connecting shaft 52 is arranged at each end of the truss 51, and the end of the connecting shaft 52 is connected to the truss 51; a pulley block 53 is arranged at each end of the two connecting shafts 52 away from the truss 51; the pulley block 53 abuts against the first beam frame 21;

[0104] like Fig. 9 and Fig.10As shown, the spray pipe 3 is installed on the sliding assembly 5, and when the preset spacing is adjusted, the sliding assembly 5 moves along the longitudinal beam 2;

[0105] Specifically, when adjusting the spacing, the pulley block 53 cooperates with the longitudinal beam 2, so that the sliding assembly 5 as a whole and the spray pipe 3 can be displaced and adjusted at the same time, thereby achieving the spacing adjustment between the spray pipes 3;

[0106] Specifically, the truss 51, the connecting shaft 52 and the pulley block 53 can be directly fixedly connected by bolts, or flanges can be provided and then fixedly connected by bolts, so as to facilitate disassembly and assembly, and facilitate subsequent maintenance and replacement of components.

[0107] The truss 51 has a first plate surface parallel to the horizontal plane or with an angle less than 45°, and a second plate surface 512 perpendicular to the horizontal plane, and one side of the second plate surface 512 is connected to one side of the first plate surface 511 to form a right-angled plate or an acute-angled plate; both ends of the truss 51 are closed by end blocks 513, and a leakage hole is provided at the connection between the first plate surface 511 and the second plate surface 512; the end of the spray pipe 3 is connected to the end block 513, and the spray pipe 3 is provided with a nozzle facing the first plate surface 511; the end block 513 is a hollow structure, and the end block 513 is provided with a water outlet 501 facing the first plate surface 511; the transverse wind knife 6 is arranged on the second plate surface 512, and the air outlet of the transverse wind knife 6 is facing between the first plate surface 511 and the spray pipe 3; the longitudinal wind knife 7 is arranged on the second beam frame 22, and the air outlet of the longitudinal wind knife 7 is facing between the filter screen 4 and the spray pipe 3;

[0108] like Figure 7 , 8 , 16 to 20, the truss 51 is composed of a first plate surface 511, a second plate surface 512 and an end block 513, and is also provided with a transverse wind knife 6 and a longitudinal wind knife 7;

[0109] There are multiple working modes for the above structure:

[0110] First, when the application is in progress, water is sprayed from the nozzle of the spray pipe 3 to the first plate surface 511, and then the water flow on the first plate surface 511 is sprayed out by the horizontal wind knife 6 to achieve the spray washing work; at the same time, the water flow can also be sprayed onto the filter screen 4 to perform adsorption work through the filter screen 4; in this case, the first plate surface 511 is parallel to the horizontal plane, and can also be set to an angle less than 45°;

[0111] Secondly, when applying, water is sprayed from the nozzle of the spray pipe 3, or the water supply pipeline is connected to the end block 513, and the water flow is output through the water outlet 501 of the end block 513. In this way, the water flow will flow down through the leakage hole at the connection between the first plate surface 511 and the second plate surface 512 to form a longitudinal water curtain to achieve the rinsing work. Fig.17The leakage hole at the connection between the first plate surface 511 and the second plate surface 512 is shown;

[0112] In this case, preferably, the angle between the first plate surface 511 and the horizontal plane is less than 45°, so that water can be easily accumulated and water can be prevented from flowing down the side of the first plate surface 511 away from the second plate surface 512;

[0113] Third, when in use, the longitudinal wind knife 7 works intermittently. First, the transverse wind knife 6 blows water onto the filter screen 4 to wet the filter screen 4, and then the longitudinal wind knife 7 works to blow the air flow downward. Since the transverse wind knife 6 is arranged at intervals like the spray pipe 3, there will be gaps when the interval is large. Therefore, when the longitudinal wind knife 7 works, the water vapor blown by the transverse wind knife 6 will flow downward when encountering the longitudinal wind curtain, thereby forming a longitudinal water curtain, which can fill the gap between the transverse wind knife 6 and the transverse wind knife 6 to ensure the filtering effect; after working for a period of time, the longitudinal wind knife 7 stops, and the transverse wind knife 6 blows water onto the filter screen 4 again to clean the filter screen 4, and the reciprocating cycle can be performed in this way;

[0114] In addition, the negative pressure formed by the longitudinal wind knife 7 can also cause the smoke to flow toward the filter screen 4, thereby improving the adsorption efficiency.

[0115] The truss 51 further includes a spiral tube 514, both ends of which are connected to an end block 513, and the spiral tube 514 surrounds the first plate surface 511, the second plate surface 512 and the spray pipe 3; the middle section of the spiral tube 514 is fixed to the first plate surface 511 and the second plate surface 512, and a plurality of nozzles are opened on the tube wall of the spiral tube 514;

[0116] like Fig. 20 As shown, by arranging a spiral tube 514 on the truss 51, and a nozzle is arranged on the spiral tube 514, the spiral tube 514 can realize 360-degree water spraying, thereby assisting the spray pipe 3 and the filter screen 4 to reduce dust, and at the same time, the smoke and dust that pass through the dust reduction device can be suppressed, thereby ensuring a good dust reduction effect; at the same time, the spiral tube 514 is fixed to the first plate surface 511 and the second plate surface 512, and the structural strength of the truss 51 can also be strengthened;

[0117] When it is used specifically, the end block 513 is used to supply water, and water is supplied into the spiral tube 514 through the end block 513 .

[0118] At the same time, in the above structure, the water supply efficiency can be improved by supplying water through the end block 513, which is convenient for providing a larger water flow rate. The water flows down through the leakage hole at the connection between the first plate surface 511 and the second plate surface 512 to form a longitudinal water curtain. In this way, it can be avoided that when the spray pipe 3 has too many nozzles, there are few nozzles facing the first plate surface 511, and the water flow rate is small and a complete longitudinal water curtain cannot be formed.

[0119] The first beam frame 21 includes a U-shaped channel steel 211 and a hollow tube 212, and the second beam frame 22 includes a rectangular tube 221 and a side plate 222, wherein four hollow tubes 212 are arranged in a rectangular array on the inner side of the U-shaped channel steel 211, and the two ends of the wheel axle of the pulley block 53 are respectively limited by two hollow tubes 212;

[0120] like Fig.14 As shown, the main body of the first beam frame 21 is made of U-shaped channel steel 211. In order to ensure the structural strength of the U-shaped channel steel 211, four hollow tubes 212 are arranged inside the U-shaped channel steel 211 to ensure the overall structural strength of the first beam frame 21.

[0121] When the sliding assembly 5 cooperates with the first beam 21, the end of the wheel shaft of the pulley block 53 is limited by the hollow tube 212. In this way, the hollow tube 212 not only strengthens the structural strength of the first beam 21, but also limits the sliding assembly 5 to ensure stable movement.

[0122] The rectangular tube 221 is arranged on one side of the U-shaped channel steel 211, and the rectangular tube 221 is provided with at least two longitudinally parallel flow channels 201; the side plate 222 is arranged on one side of the rectangular tube 221, and the slider 42 is slidably arranged in the slideway 202 between the rectangular tube 221 and the side plate 222; the longitudinal wind knife 7 is connected to the rectangular tube 221; the rectangular tube 221 has at least one flow channel 201 intersecting with the longitudinal wind knife 7, and at least one flow channel 201 intersecting with the slideway 202;

[0123] As in the above structure, the second beam frame 22 is used for installing the filter screen 4 and the longitudinal wind knife 7. When the filter screen 4 is adjusted in displacement, the slider 42 slides in the slideway 202, thereby driving the mesh body 41 to extend and fold;

[0124] In this structure, the second beam frame 22 is connected to the first beam frame 21 through the rectangular tube 221, and the side plate 222 used to cooperate with the rectangular tube 221 to form the slideway 202 is far away from the first beam frame 21, so that after the longitudinal wind knife 7 is installed on the rectangular tube 221, the longitudinal wind knife 7 can blow the longitudinal airflow between the filter screen 4 and the spray pipe 3, so as to form a longitudinal water curtain;

[0125] Furthermore, the rectangular tube 221 is also used as an air path. When in use, a flow channel 201 is opened inside the rectangular tube 221. At this time, the rectangular tube 221 needs to be kept as a sealed structure, and only through holes corresponding to the longitudinal air knife 7 and the slideway 202 are opened;

[0126] At least two flow channels 201 are provided, one flow channel 201 is used to supply air to the longitudinal wind knife 7, and the other flow channel 201 is used to supply air to the slideway 202, so that the airflow of the slideway 202 can flow to the filter screen 4 to blow the water flow adhering to the filter screen 4, so that the water flow will flush the particles on the filter screen 4, thereby improving the cleaning effect of the filter screen 4; as the blowing work proceeds, the filter screen 4 will produce a certain fluctuation, which is also conducive to shaking off the adsorbed matter;

[0127] Specifically, an air compressor is connected to the rectangular tube 221 to deliver air flow.

[0128] The connecting member 8 includes a support rod 81, a connecting plate 82 and a cable 83, wherein one support rod 81 is rotatably disposed on each of the connecting shafts 52 of the plurality of sliding components 5; one connecting plate 82 is fixedly disposed on each of the connecting shafts 52 of the plurality of sliding components 5; of two adjacent connecting shafts 52, the support rod 81 on the lower connecting shaft 52 is connected to the connecting plate 82 on the upper connecting shaft 52 through the cable 83;

[0129] like Figures 8 to 13 As shown, the connecting piece 8 is used for adjusting the spacing of the spray pipes 3. In specific applications, the uppermost sliding assembly 5 is lifted by a lifting device, so that the spray pipe 3 and the sliding assembly 5 move at the same time, and the upper connecting shaft 52 will drive the lower connecting shaft 52 to continue to move through the connecting plate 82 and the cable 83, so that the sliding assembly 5 and the spray pipe 3 are displaced upward layer by layer, so that the spacing between the spray pipes 3 can be expanded to a second preset spacing to increase its filtering treatment area for smoke.

[0130] Furthermore, the connecting member 8 also includes a positioning rod 84 and a stop block 85, wherein, in multiple sliding components 5, the positioning rod 84 and the stop block 85 are arranged on the connecting shaft 52 at intervals, and the connecting shaft 52 of each sliding component 5 is provided with a positioning rod 84 or a stop block 85; the middle section of the positioning rod 84 is rotatably connected to the connecting shaft 52, with the axis of the connecting shaft 52 as the boundary, the mass of one end of the positioning rod 84 is greater than the mass of the other end, and the end of the positioning rod 84 is clamped with the adjacent connecting shaft 52; the stop block 85 is slidably connected to the connecting shaft 52.

[0131] As in the above structure, the positioning rod 84 is used to keep the spacing of the spray pipes 3 at the second preset spacing, and the stopper 85 is used to limit the positioning rod 84 when the spray pipes 3 are adjusted back to the first preset spacing;

[0132] When applied, Fig.11 As shown, it is a schematic diagram of the state after the cable 83 is fully stretched. At this time, the spacing between the spray pipes 3 is greater than the second preset spacing. Since one end of the positioning rod 84 has a large mass, it will fall down to keep the positioning rod 84 in a vertical state;

[0133] like Fig. 9 and Fig.10 As shown, at this time, the lifting equipment drops the sliding assembly 5 and the spray pipe 3, and the sliding assembly 5 and will be stacked from the lower layer. The upper end and the lower end of the positioning rod 84 will abut against the adjacent connecting shaft 52 to achieve the limit of the sliding assembly 5, and then achieve the limit between the spray pipes 3; at this time, the sliding assemblies 5 are supported and limited by the positioning rods 84 layer by layer, so as to ensure the stability of the overall structure;

[0134] Specifically, the connecting shaft 52 is a circular shaft, and a semicircular groove is provided at the end of the positioning rod 84 to clamp the connecting shaft 52 .

[0135] Further, when it is necessary to adjust the distance between the spray pipes 3 to the first preset distance, as Fig.11 At this time, the lifting mechanism lifts the sliding assembly 5 on the top layer again, and the cable 83 is stretched again, and the end of the positioning rod 84 will be separated from the clamping connection shaft 52;

[0136] like Figure 3 , 12 As shown in 13, at this time, the bottommost positioning rod 84 is swung to make the positioning rod 84 tilted, and then the stopper 85 is slid to limit the positioning rod 84 to prevent the positioning rod 84 from returning to vertical, and the upper sliding assembly 5 and the spray pipe 3 can fall again. By repeating the above actions, the spacing of the spray pipes 3 can be adjusted to the first preset spacing.

[0137] In the illustrated structure, the connecting piece 8 is arranged on both sides of the spray pipe 3. In specific applications, the spray pipe and the truss 51 can be arranged as a two-section structure, and the middle position is connected by a circular tube, and the connecting piece 8 is correspondingly arranged on the circular tube, so as to support the spray pipe 3 and the truss 51 with a larger length to ensure the structural stability.

[0138] Specifically, according to the above-mentioned structure, the first preset distance is controlled by the length of the support rod 81 , and the second preset distance is controlled by the length of the positioning rod 84 .

[0139] Specifically, in the dust suppression device, a cross beam is arranged at the top of the two longitudinal beams 2 , and a lifting device such as an electric hoist is arranged on the cross beam to realize the lifting and adjustment of the filter screen 4 and the sliding assembly 5 .

[0140] like Figures 1 to 4As shown in , 14 and 15, the limit frame 9 includes a longitudinal plate 91 and a plug plate 92, wherein the longitudinal plate 91 is arranged on a side of the first beam frame 21 away from the spray pipe 3, and one end of the longitudinal plate 91 is rotatably connected to the first beam frame 21; a plurality of plug plates 92 are arranged on a side of the longitudinal plate 91 facing the first beam frame 21, and the plug plates 92 are spaced apart from each other by a second preset spacing; a slot 901 is provided on the surface of the first beam frame 21 facing the longitudinal plate 91;

[0141] As in the above structure, when the preset spacing is adjusted for the spray pipe 3, Figure 4 As shown, at this time, the entire limit frame 9 is tilted, and the plug plate 92 is not inserted into the slot 901;

[0142] At this time, the spray pipe 3 can be lifted to a state greater than the second preset distance by the lifting equipment, and then the longitudinal plate 91 is rotated to insert the plug plate 92 into the slot 901. When the sliding assembly 5 and the spray pipe 3 fall back, the plug plate 92 can support the pulley block 53 of the sliding assembly 5, further ensuring the stability of the overall structure.

[0143] At the same time, this can also prevent the sliding assembly 5 from falling and impacting when the positioning rod 84 is not stable, so as to protect the overall structure.

[0144] like Figure 2 As shown, the device also includes a rotating rod 10 and a support plate 11, wherein the lower end of the rotating rod 10 is rotatably set in the water tank 1, and a plurality of support plates 11 are arranged on the rotating rod 10, and the spacing of the support plates 11 is set at a second preset spacing, so that after the spray pipe 3 is adjusted, the rotating rod 10 is rotated to support the truss 51 with the support plate 11, and when it is necessary to adjust the spacing of the spray pipe 3 to the first preset spacing, the rotating rod 10 is first rotated to move the support plate 11 out from the bottom side of the truss 51.

[0145] Furthermore, the environmentally friendly dust reduction device for canal blasting construction can also be carried or towed by a vehicle.

[0146] The application method of the canal blasting construction environmental protection dust reduction device of the present invention comprises the following steps:

[0147] S1. Install the environmental dust suppression device for the canal blasting construction at the downwind of the blasting area;

[0148] S2, adjusting the distance between the spray pipes 3 to a second preset distance;

[0149] S3, unfold the filter screen 4 so that the filter screen 4 is located in front of the spray pipe 3;

[0150] S4, supply water to the spray pipe 3, and spray water onto the filter screen 4 through the spray pipe 3;

[0151] S5. During blasting, the smoke and dust generated flows toward the filter screen 4 and is adsorbed by the filter screen 4. The spray pipe 3 flushes the smoke and dust adsorbed on the filter screen 4, causing the smoke and dust to gather and fall. At the same time, the water sprayed from the spray pipe 3 adsorbs the smoke and dust.

[0152] S6. After dust reduction is completed, the filter screen 4 falls back into the water tank 1 for washing, and the distance between the spray pipes 3 is adjusted to a first preset distance.

[0153] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly dust suppression device for canal blasting construction, characterized by: It comprises a water tank (1), a longitudinal beam (2), a spray pipe (3), a filter screen (4), a plurality of parallel sliding components (5), a transverse air knife (6) and a longitudinal air knife (7), wherein: The water tank (1) is a hollow structure, and the top surface of the water tank (1) is open; Two longitudinal beams (2) are arranged opposite to each other in the water tank (1), and one end of the longitudinal beam (2) extends outside the water tank (1); A plurality of the spray pipes (3) are arranged in parallel, and both ends of the plurality of the spray pipes (3) are respectively slidably connected to one of the longitudinal beams (2); Both sides of the filter screen (4) are slidably connected to one of the longitudinal beams (2); When the canal blasting construction environmental dust reduction device is not in operation, a first preset distance is provided between the spray pipes (3) and the filter screen (4) is folded in the water tank (1); When the canal blasting construction environmental dust reduction device is in operation, the spray pipes (3) are adjusted to a second preset distance, the second preset distance being greater than the first preset distance, and the filter screen (4) is unfolded and extends out through the top opening of the water tank (1); The longitudinal beam (2) comprises a first beam frame (21) and a second beam frame (22), wherein the first beam frame (21) and the second beam frame (22) are arranged in parallel; the spray pipe (3) is slidably connected to the first beam frame (21); The sliding assembly (5) comprises a truss (51), a connecting shaft (52) and a pulley block (53), wherein the truss (51) is arranged between the two longitudinal beams (2), and the spray pipe (3) is arranged on the truss (51); one connecting shaft (52) is arranged at each end of the truss (51), and the end of the connecting shaft (52) is connected to the truss (51); one pulley block (53) is arranged at each end of the two connecting shafts (52) away from the truss (51); and the pulley block (53) abuts against the first beam frame (21); The truss (51) comprises a first plate surface (511) parallel to a horizontal plane or having an angle less than 45 degrees, and a second plate surface (512) perpendicular to the horizontal plane, and one side edge of the second plate surface (512) is connected to one side edge of the first plate surface (511) to form a right-angle plate shape or an acute-angle plate shape; both ends of the truss (51) are closed by end blocks (513), and a leakage hole is provided at the connection between the first plate surface (511) and the second plate surface (512); the end of the spray pipe (3) is connected to the end block (513), and the spray pipe (3 ) is provided with a nozzle toward the first plate surface (511); the end block (513) is a hollow structure, and the end block (513) is provided with a water outlet (501) toward the first plate surface (511); the transverse wind knife (6) is arranged on the second plate surface (512), and the air outlet of the transverse wind knife (6) is oriented toward between the first plate surface (511) and the spray pipe (3); the longitudinal wind knife (7) is arranged on the second beam frame (22), and the air outlet of the longitudinal wind knife (7) is oriented toward between the filter screen (4) and the spray pipe (3).

2. The environmentally friendly dust suppression device for canal blasting construction as claimed in claim 1, characterized in that: The filter screen (4) comprises a screen body (41) and a slider (42), wherein: The bottom end of the net body (41) is fixedly connected to the water tank (1) or the second beam frame (22); The sliding block (42) is arranged at the top end of the net body (41), and the sliding block (42) is slidably connected to the second beam frame (22).

3. The environmentally friendly dust suppression device for canal blasting construction as claimed in claim 2, characterized in that: The first beam frame (21) comprises a U-shaped channel steel (211) and a hollow tube (212), and the second beam frame (22) comprises a rectangular tube (221) and a side plate (222), wherein: Four hollow tubes (212) are arranged in a rectangular array on the inner side of the U-shaped channel steel (211), and the two ends of the wheel axle of the pulley block (53) are respectively limited by two of the hollow tubes (212); The rectangular tube (221) is arranged on one side of the U-shaped channel steel (211), and the rectangular tube (221) is provided with at least two flow channels (201) parallel in the longitudinal direction; The side plate (222) is arranged on one side of the rectangular tube (221), and the sliding block (42) is slidably arranged in a slideway (202) between the rectangular tube (221) and the side plate (222); The longitudinal wind knife (7) is connected to the rectangular tube (221); The rectangular tube (221) has at least one flow channel (201) intersecting with the longitudinal air knife (7), and at least one flow channel (201) intersecting with the slide channel (202).

4. The environmentally friendly dust suppression device for canal blasting construction as claimed in claim 2, characterized in that: The truss (51) further comprises a spiral tube (514), the two ends of the spiral tube (514) are respectively connected to and communicate with one of the end blocks (513), and the spiral tube (514) surrounds the first plate surface (511), the second plate surface (512) and the spray pipe (3); The middle section of the spiral tube (514) is fixed to the first plate surface (511) and the second plate surface (512), and a plurality of nozzles are provided on the tube wall of the spiral tube (514).

5. The environmentally friendly dust suppression device for canal blasting construction as claimed in claim 2, characterized in that: It also includes a connecting member (8), the connecting member (8) including a support rod (81), a connecting plate (82) and a cable (83), wherein: One of the support rods (81) is rotatably disposed on each of the connecting shafts (52) of the plurality of sliding assemblies (5); One connecting plate (82) is fixedly disposed on each of the connecting shafts (52) of the plurality of sliding assemblies (5); Of the two adjacent connecting shafts (52), the support rod (81) located on the lower connecting shaft (52) and the connecting plate (82) located on the upper connecting shaft (52) are connected via the cable (83).

6. The environmentally friendly dust suppression device for canal blasting construction as claimed in claim 5, characterized in that: The connecting member (8) further comprises a positioning rod (84) and a stopper (85), wherein: In the plurality of sliding assemblies (5), the positioning rods (84) and the stoppers (85) are arranged on the connecting shaft (52) at intervals, and the connecting shaft (52) of each sliding assembly (5) is provided with the positioning rod (84) or the stopper (85); The middle section of the positioning rod (84) is rotatably connected to the connecting shaft (52), with the axis of the connecting shaft (52) as the boundary, the mass of one end of the positioning rod (84) is greater than the mass of the other end, and the end of the positioning rod (84) is clamped with the adjacent connecting shaft (52); The stopper (85) is slidably connected to the connecting shaft (52).

7. The environmentally friendly dust suppression device for canal blasting construction according to any one of claims 3 to 6, characterized in that: It also includes a limiting frame (9), the limiting frame (9) including a longitudinal plate (91) and a plug plate (92), wherein: The longitudinal plate (91) is arranged on a side of the first beam (21) away from the spray pipe (3), and one end of the longitudinal plate (91) is rotatably connected to the first beam (21); A plurality of the plugging plates (92) are arranged on a side of the longitudinal plate (91) facing the first beam frame (21), and the plugging plates (92) are spaced apart from each other by the second preset spacing; A slot (901) is provided on the surface of the first beam frame (21) facing the longitudinal plate (91).

8. An application method of the canal blasting construction environmental protection dust suppression device as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Install the environmental dust suppression device for the canal blasting construction at the downwind of the blasting area; S2, adjusting the distance between the spray pipes (3) and the spray pipes (3) to a second preset distance; S3, unfolding the filter screen (4) so ​​that the filter screen (4) is located in front of the spray pipe (3); S4, supplying water to the spray pipe (3), and spraying water onto the filter screen (4) through the spray pipe (3); S5. During the explosion, the smoke and dust generated flows toward the filter screen (4) and is adsorbed by the filter screen (4). The spray pipe (3) flushes the smoke and dust adsorbed on the filter screen (4), causing the smoke and dust to gather and fall down. At the same time, the water sprayed from the spray pipe (3) adsorbs the smoke and dust. S6. After dust reduction is completed, the filter screen (4) falls back into the water tank (1) for washing, and the distance between the spray pipes (3) is adjusted to a first preset distance.

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