A dust removal and temperature reduction device for tunnel construction

Abstract

The present invention discloses a dust removal and temperature reduction device for tunnel construction, belonging to the technical field of tunnel construction, including a mobile box and a dust removal and temperature reduction mechanism. The dust removal and temperature reduction mechanism includes: an air inlet pipe, a first filter screen, a dust cleaning component, a conveying pipe, a spray head, a water tank, a second filter screen, a collection component, a spraying component and a fan; through the fan, the air containing dust can pass through the air inlet pipe and the conveying pipe. Through the first filter screen inside the air inlet pipe, larger particles of dust can be filtered, and the dust on the first filter screen can be cleaned and collected by the dust cleaning component to maintain the working effect of the first filter screen; through the spray head inside the conveying pipe, the air containing dust can be sprayed, so that the dust is mixed with water and falls into the water tank. Through the filtration of the second filter screen, the water containing dust can be filtered to reduce water resource waste. Through the spraying component, the tunnel ground can be sprayed with water mist to reduce the dispersion of dust.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel construction, and particularly relates to a dust removal and temperature reduction device for tunnel construction. Background Art

[0002] In the construction of tunnels by the drill and blast method, a large amount of dust is generated during construction processes such as drilling and blasting, mucking, transportation, and shotcreting. Tunnel construction is generally in a semi-closed state, and as the tunnel is excavated, the degree of closure becomes stronger; there are many power engineering mechanical equipment operating in the tunnel, generating a certain amount of exhaust gas, oil fume, and soot. The most direct and harmful impact of tunnel construction on the human body is dust; first, due to operations such as drilling and blasting, mucking, transportation, concrete mixing and pouring, and shotcreting in tunnel construction, a large amount of inorganic dust or slurry mist is generated, which is very harmful to the health of construction workers.

[0003] The existing dust removal and temperature reduction devices for tunnel construction are prone to clogging of the filter screen when collecting dust, affecting the working efficiency of the filter screen, and after spraying the air containing dust, it is not convenient to filter the water containing dust, resulting in waste of water resources.

[0004] To avoid the above technical problems, it is necessary to provide a dust removal and temperature reduction device for tunnel construction to overcome the defects in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a dust removal and temperature reduction device for tunnel construction to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A dust removal and temperature reduction device for tunnel construction includes a mobile box and a dust removal and temperature reduction mechanism. The dust removal and temperature reduction mechanism includes:

[0008] An air inlet pipe is installed at one end of the mobile box. A first filter screen is installed inside the air inlet pipe for filtering the air containing dust. A dust cleaning component is installed between the first filter screen and the air inlet pipe for rotating the first filter screen inside the air inlet pipe and cleaning and collecting the dust on the surface of the first filter screen;

[0009] A delivery pipe is installed at the air outlet of the air inlet pipe. A spray head is installed inside the delivery pipe for spraying the air containing dust, so that the dust in the air is mixed with water and falls to the bottom side of the delivery pipe; a water tank is installed at the bottom end of the delivery pipe, and the water tank is communicated with the bottom side of the delivery pipe; a fan is installed at the end of the delivery pipe away from the air inlet pipe for making the air flow inside the delivery pipe and the air inlet pipe;

[0010] A second filter screen is installed inside the water tank for filtering water containing dust. A collection component is installed on the second filter screen for cleaning and collecting the dust on the second filter screen. A spraying component is installed at one end of the water tank close to the air inlet pipe for spraying water mist on the tunnel floor.

[0011] As a further technical solution of the present invention: The dust cleaning component includes:

[0012] A fixed ring is fixedly installed on the inner wall of the air inlet pipe. The fixed ring is rotationally connected to the first filter screen. A gear ring is installed on the outer side of the first filter screen. A first driving member is fixedly installed on the bottom side of the air inlet pipe. A driving rod is installed at the output end of the first driving member. A rotating tooth is installed on the outer side of the driving rod. The rotating tooth is meshed with the gear ring;

[0013] A cleaning component is provided on the surface of the first filter screen. The cleaning component is connected to the driving rod and is used for cleaning the dust on the surface of the first filter screen and conveying the dust when the first filter screen rotates.

[0014] As a further technical solution of the present invention: The cleaning component includes:

[0015] An air guiding frame is fixedly installed inside the air inlet pipe and is located on the surface of the first filter screen. A first rotating rod is installed inside the air guiding frame. A first spiral blade is installed on the outer side of the first rotating rod. A first bevel gear is fixedly installed at the bottom end of the first rotating rod. A second bevel gear is installed at one end of the driving rod close to the first rotating rod. The first bevel gear is meshed with the second bevel gear;

[0016] A second rotating rod is installed between the first rotating rod and the first filter screen. The second rotating rod is parallel to the first rotating rod. A first brush is installed on the outer side of the second rotating rod and is used for rotating along with the second rotating rod to clean the dust on the surface of the first filter screen. A first rotating tooth is installed on the outer side of the bottom end of the first rotating rod. A second rotating tooth is installed on the outer side of the bottom end of the second rotating rod. The first rotating tooth is meshed with the second rotating tooth;

[0017] A baffle is installed at the bottom end inside the air guiding frame. A first collection frame is installed on the side of the air guiding frame. Both the first rotating rod and the second rotating rod penetrate through the baffle.

[0018] As a further technical solution of the present invention: The collection component includes:

[0019] The second driving member is fixedly installed at one end of the water tank away from the spraying assembly. A rotating rod is installed at the output end of the second driving member. A second spiral blade is installed on the outer side of the rotating rod. A second brush is installed at the edge of the second spiral blade. A second collection box is provided at the bottom side of the second driving member. A connecting pipe is installed between the top end of the second collection box and the water tank. A screen is installed inside the second collection box. The bottom end of the second collection box is communicated with the water tank.

[0020] As a further technical solution of the present invention: The spraying assembly includes:

[0021] A water pump is installed at one end of the water tank away from the second driving member. The water inlet end of the water pump is communicated with the water tank. A spraying frame is installed at the output end of the water pump. A plurality of atomizing nozzles are evenly distributed on the spraying frame. The spraying frame is in a horizontal shape.

[0022] As a further technical solution of the present invention: The conveying pipe is in a wave shape. The spray head is located at the inner top end of the conveying pipe and on the side away from the air inlet pipe.

[0023] As a further technical solution of the present invention: The shape of the first filter screen is circular, and the diameter of the first filter screen is the same as the inner diameter of the air inlet pipe; the second filter screen is in a long strip shape, and the cross-sectional shape of the second filter screen is semi-circular.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] A dust removal and cooling device for tunnel construction provided by the present invention. An air inlet pipe, a conveying pipe and a fan are installed on the moving box, which facilitates the passage of air containing dust through the air inlet pipe and the conveying pipe. Through the first filter screen inside the air inlet pipe, larger particles of dust can be filtered, and the dust on the first filter screen can be cleaned and collected by the dust cleaning assembly to maintain the working effect of the first filter screen; the air containing dust can be sprayed through the spray head inside the conveying pipe, so that the dust is mixed with water and falls into the water tank. The water containing dust can be filtered through the second filter screen to reduce water resource waste. The tunnel floor can be sprayed with water mist through the spraying assembly to reduce the dispersion of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the present invention.

[0027] Figure 2 It is a schematic structural diagram of the dust cleaning assembly in the present invention.

[0028] Figure 3 For the present invention Figure 2 The enlarged schematic structural diagram at A in it.

[0029] Figure 4Schematic diagram of the inner structure of the water tank in the present invention.

[0030] Figure 5 For the present invention Figure 1 Schematic diagram of the enlarged structure at B in the present invention.

[0031] Figure 6 Schematic diagram of the structures of the first filter screen and the gear ring in the present invention.

[0032] In the attached drawings: 1 - moving box, 2 - air inlet pipe, 3 - first filter screen, 4 - dust cleaning assembly, 41 - fixed ring, 42 - gear ring, 43 - first driving member, 44 - driving rod, 45 - rotating teeth, 46 - cleaning assembly, 461 - air guiding frame, 462 - first rotating rod, 463 - first helical blade, 464 - first bevel gear, 465 - second bevel gear, 466 - second rotating rod, 467 - first brush, 468 - first rotating teeth, 469 - second rotating teeth, 5 - conveying pipe, 6 - spray head, 7 - water tank, 8 - second filter screen, 9 - collection assembly, 91 - second driving member, 92 - rotating rod, 93 - second helical blade, 94 - second brush, 95 - connecting pipe, 96 - sieve, 10 - spraying assembly, 101 - water pump, 102 - spraying frame, 103 - atomizing nozzle, 11 - fan, 12 - baffle, 13 - first collection box, 14 - second collection box. Detailed implementation manners

[0033] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0035] As Figures 1 to 6 shown, in the embodiment provided by the present invention, a dust removal and temperature reduction device for tunnel construction includes a moving box 1 and a dust removal and temperature reduction mechanism, and the dust removal and temperature reduction mechanism includes:

[0036] An air inlet pipe 2, installed at one end of the moving box 1, with a first filter screen 3 installed inside the air inlet pipe 2 for filtering air containing dust, and a dust cleaning assembly 4 installed between the first filter screen 3 and the air inlet pipe 2 for rotating the first filter screen 3 inside the air inlet pipe 2 and cleaning and collecting the dust on the surface of the first filter screen 3;

[0037] A delivery pipe 5 is installed at the air outlet of the air inlet pipe 2. A spray head 6 is installed inside the delivery pipe 5 for spraying the air containing dust, so that the dust in the air is mixed with water and falls to the bottom side of the delivery pipe 5. A water tank 7 is installed at the bottom end of the delivery pipe 5, and the water tank 7 is communicated with the bottom side of the delivery pipe 5. A blower 11 is installed at one end of the delivery pipe 5 far from the air inlet pipe 2 for making the air flow inside the delivery pipe 5 and the air inlet pipe 2.

[0038] A second filter screen 8 is installed inside the water tank 7 for filtering the water containing dust. A collection assembly 9 is installed on the second filter screen 8 for cleaning and collecting the dust on the second filter screen 8. A spraying assembly 10 is installed at one end of the water tank 7 close to the air inlet pipe 2 for spraying water mist on the tunnel floor.

[0039] In this embodiment, the air inlet pipe 2, the delivery pipe 5 and the blower 11 are installed on the moving box 1, which facilitates the air containing dust to pass through the air inlet pipe 2 and the delivery pipe 5. Through the first filter screen 3 inside the air inlet pipe 2, larger particles of dust can be filtered, and the dust on the first filter screen 3 is cleaned and collected by the dust cleaning assembly 4 to maintain the working effect of the first filter screen 3. The air containing dust can be sprayed by the spray head 6 inside the delivery pipe 5, so that the dust is mixed with water and falls into the water tank 7. The water containing dust can be filtered by the second filter screen 8 to reduce the waste of water resources. The tunnel floor can be sprayed with water mist by the spraying assembly 10 to reduce the dispersion of dust. The delivery pipe 5 is wavy, and the spray head 6 is located at the top end inside the delivery pipe 5 and on the side of the delivery pipe 5 far from the air inlet pipe 2, which is convenient for the spray head 6 to spray the air containing dust and can effectively prevent the dust from blocking the spray head 6, facilitating use. The shape of the first filter screen 3 is circular, and the diameter of the first filter screen 3 is the same as the inner diameter of the air inlet pipe 2.

[0040] In an embodiment of the present invention, please refer to Figure 1 and Figure 2 , the dust cleaning assembly 4 includes:

[0041] A fixed ring 41 is fixedly installed on the inner wall of the air inlet pipe 2. The fixed ring 41 is rotatably connected to the first filter screen 3. A gear ring 42 is installed on the outer side of the first filter screen 3. A first driving member 43 is fixedly installed at the bottom side of the air inlet pipe 2. A driving rod 44 is installed at the output end of the first driving member 43. A rotating tooth 45 is installed on the outer side of the driving rod 44, and the rotating tooth 45 is meshed with the gear ring 42.

[0042] A cleaning assembly 46 is arranged on the surface of the first filter screen 3. The cleaning assembly 46 is connected to the driving rod 44 and is used for cleaning the dust on the surface of the first filter screen 3 and conveying the dust when the first filter screen 3 rotates.

[0043] In this embodiment, the fixing ring 41 is fixedly installed on the inner wall of the air inlet pipe 2. A rolling bearing is installed between the fixing ring 41 and the first filter screen 3. The first filter screen 3 can rotate on the fixing ring 41. The gear ring 42 is fixedly installed on the outer wall of the first filter screen 3. The first driving member 43 can be a rotating motor or a stepping motor, etc. In this embodiment, the first driving member 43 is a rotating motor. The output end of the first driving member 43 is installed with a driving rod 44. The rotating teeth 45 on the outer side of the driving rod 44 are meshed and connected with the gear ring 42. The cleaning assembly 46 is connected with the driving rod 44. When the first driving member 43 controls the driving rod 44 to rotate, the first filter screen 3 can rotate on the fixing ring 41 through the rotating teeth 45 and the gear ring 42, and the cleaning assembly 46 can be driven to work simultaneously.

[0044] In an embodiment of the present invention, please refer to Figure 2 and Figure 3 , the cleaning assembly 46 includes:

[0045] The air guiding frame 461 is fixedly installed inside the air inlet pipe 2 and located on the surface of the first filter screen 3. A first rotating rod 462 is installed inside the air guiding frame 461. A first spiral blade 463 is installed on the outer side of the first rotating rod 462. A first bevel gear 464 is fixedly installed at the bottom end of the first rotating rod 462. A second bevel gear 465 is installed at one end of the driving rod 44 close to the first rotating rod 462. The first bevel gear 464 is meshed and connected with the second bevel gear 465;

[0046] A second rotating rod 466 is installed between the first rotating rod 462 and the first filter screen 3. The second rotating rod 466 is parallel to the first rotating rod 462. A first brush 467 is installed on the outer side of the second rotating rod 466 for rotating along with the second rotating rod 466 to clean the dust on the surface of the first filter screen 3. A first rotating tooth 468 is installed on the outer side of the bottom end of the first rotating rod 462. A second rotating tooth 469 is installed on the outer side of the bottom end of the second rotating rod 466. The first rotating tooth 468 is meshed and connected with the second rotating tooth 469;

[0047] A baffle 12 is installed at the bottom end inside the air guiding frame 461. A first collection box 13 is installed on the side of the air guiding frame 461. The first rotating rod 462 and the second rotating rod 466 both penetrate through the baffle 12.

[0048] In this embodiment, the cross-sectional shape of the air guide frame 461 is an isosceles triangle. The first rotating rod 462 and the second rotating rod 466 inside the air guide frame 461 are both parallel to the surface of the first filter screen 3. The first rotating rod 462 and the driving rod 44 are connected by a first bevel gear 464 and a second bevel gear 465. A first spiral blade 463 installed outside the first rotating rod 462 can convey the dust cleaned down and send the dust into the inside of the first collection frame 13 through the baffle 12. A first brush 467 is installed outside the second rotating rod 466. The first rotating rod 462 and the second rotating rod 466 are connected by a first rotating tooth 468 and a second rotating tooth 469, which facilitates rotating dust cleaning of the surface of the first filter screen 3 during the rotation of the first filter screen 3, improves the dust cleaning efficiency, and enables the dust to enter the first spiral blade 463 for easy conveying.

[0049] In an embodiment of the present invention, please refer to Figure 1 , Figure 4 and Figure 5 , the collection assembly 9 includes:

[0050] A second driving member 91, fixedly installed at one end of the water tank 7 away from the spraying assembly 10. A rotating rod 92 is installed at the output end of the second driving member 91. A second spiral blade 93 is installed outside the rotating rod 92. A second brush 94 is installed at the edge of the second spiral blade 93. A second collection frame 14 is provided at the bottom side of the second driving member 91. A connecting pipe 95 is installed between the top end of the second collection frame 14 and the water tank 7. A screen 96 is installed inside the second collection frame 14. The bottom end of the second collection frame 14 is communicated with the water tank 7.

[0051] In this embodiment, the second driving member 91 can be a rotating motor or a stepping motor, etc. In this embodiment, the second driving member 91 is a rotating motor. A rotating rod 92 is fixedly installed at the output end of the second driving member 91. A second spiral blade 93 is installed outside the rotating rod 92. The second filter screen 8 is strip-shaped. The cross-sectional shape of the second filter screen 8 is semi-circular. The diameter of the second spiral blade 93 is the same as the diameter of the second filter screen 8. A second brush 94 is also installed at the edge of the second spiral blade 93. When the second driving member 91 controls the second spiral blade 93 to rotate, it is convenient to drive the second brush 94 to clean the surface of the second filter screen 8 and move the dust on the second filter screen 8, so that the dust on the second filter screen 8 can enter the second collection frame 14 through the connecting pipe 95. An inclined screen 96 is installed inside the second collection frame 14. The screen 96 is made of the same material as the second filter screen 8, which facilitates the water to return to the inside of the water tank 7 through the second collection frame 14; avoiding excessive water pressure inside the second collection frame 14 and affecting the dust collection effect.

[0052] In an embodiment of the present invention, please refer toFigure 1 , the spraying assembly 10 includes:

[0053] A water pump 101 is installed at one end of the water tank 7 away from the second driving member 91. The water inlet end of the water pump 101 is communicated with the water tank 7. A spraying frame 102 is installed at the output end of the water pump 101. A plurality of atomizing nozzles 103 are evenly distributed on the spraying frame 102, and the spraying frame 102 is in a horizontal shape.

[0054] In this embodiment, a plurality of atomizing nozzles 103 are evenly distributed on the bottom side of the spraying frame 102, which can spray water mist on the tunnel floor to avoid the dispersion of dust on the tunnel floor, and the temperature inside the tunnel can be reduced by the evaporation of the water mist. The water pump 101 can also be connected to a refrigerator, and the refrigerator cools the water entering the water pump 101 to reduce the temperature of the water, and then the cooled water is sprayed into the tunnel through the spraying frame 102 and the atomizing nozzles 103 to achieve the cooling effect on the inside of the tunnel.

[0055] The working principle of the present invention is:

[0056] In the present invention, first, the fan 11 is turned on to make the air containing dust pass through the air inlet pipe 2 and the conveying pipe 5, and at the same time, the first driving member 43, the second driving member 91 and the spray head 6 are turned on. The first driving member 43 can control the driving rod 44 to rotate, and the first filter screen 3 rotates inside the air inlet pipe 2 through the rotating teeth 45 and the gear ring 42, and at the same time, the first rotating rod 462 and the second rotating rod 466 rotate, which is convenient for cleaning the dust on the surface of the first filter screen 3 and conveying the dust into the first collection frame 13; the spray head 6 can spray the air containing dust, and at this time, the water containing dust can flow into the water tank 7 and be filtered by the second filter screen 8. The second spiral blade 93 drives the second brush 94 to rotate, which can clean the second filter screen 8 and make the dust on the surface of the second filter screen 8 enter the second collection frame 14; the water pump 101 and the atomizing nozzles 103 can be used to spray water mist on the tunnel floor to avoid the dispersion of dust on the tunnel floor.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0058] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dust removal and cooling device for tunnel construction, comprising a movable box and a dust removal and cooling mechanism, characterized in that, The dust removal and cooling mechanism includes: An air inlet pipe installed at one end of the mobile box. A first filter screen is installed inside the air inlet pipe for filtering the air containing dust. A dust cleaning component is installed between the first filter screen and the air inlet pipe for rotating the first filter screen inside the air inlet pipe and cleaning and collecting the dust on the surface of the first filter screen; A delivery pipe is installed at the air outlet of the air inlet pipe. A spray head is installed inside the delivery pipe for spraying the air containing dust, so that the dust in the air is mixed with water and falls to the bottom side of the delivery pipe; A water tank is installed at the bottom end of the delivery pipe, and the water tank is communicated with the bottom side of the delivery pipe; A fan is installed at one end of the delivery pipe away from the air inlet pipe for making the air flow inside the delivery pipe and the air inlet pipe; A second filter screen is installed inside the water tank for filtering the water containing dust. A collection component is installed on the second filter screen for cleaning and collecting the dust on the second filter screen. A spraying component is installed at one end of the water tank close to the air inlet pipe for spraying water mist on the tunnel floor; The dust cleaning component includes: A fixed ring fixedly installed on the inner wall of the air inlet pipe. The fixed ring is rotatably connected to the first filter screen. A gear ring is installed outside the first filter screen. A first driving member is fixedly installed at the bottom side of the air inlet pipe. A driving rod is installed at the output end of the first driving member. A rotating tooth is installed outside the driving rod, and the rotating tooth is meshed with the gear ring; A cleaning component is arranged on the surface of the first filter screen. The cleaning component is connected to the driving rod for cleaning the dust on the surface of the first filter screen and conveying the dust when the first filter screen rotates; The cleaning component includes: A wind guiding frame fixedly installed inside the air inlet pipe and located on the surface of the first filter screen. A first rotating rod is installed inside the wind guiding frame. A first spiral blade is installed outside the first rotating rod. A first bevel gear is fixedly installed at the bottom end of the first rotating rod. A second bevel gear is installed at one end of the driving rod close to the first rotating rod. The first bevel gear is meshed with the second bevel gear; A second rotating rod is installed between the first rotating rod and the first filter screen. The second rotating rod is parallel to the first rotating rod. A first brush is installed outside the second rotating rod for rotating along with the second rotating rod to clean the dust on the surface of the first filter screen; A first rotating tooth is installed outside the bottom end of the first rotating rod, and a second rotating tooth is installed outside the bottom end of the second rotating rod. The first rotating tooth is meshed with the second rotating tooth; A baffle is installed at the bottom end inside the wind guiding frame. A first collection frame is installed on the side of the wind guiding frame. Both the first rotating rod and the second rotating rod penetrate through the baffle.

2. The dust removal and temperature reduction equipment for tunnel construction according to claim 1, wherein, The collection component includes: The second driving member is fixedly installed at one end of the water tank away from the spraying assembly. A rotating rod is installed at the output end of the second driving member. A second spiral blade is installed on the outer side of the rotating rod. A second brush is installed at the edge of the second spiral blade. A second collection box is arranged at the bottom side of the second driving member. A connecting pipe is installed between the top end of the second collection box and the water tank. A screen is installed inside the second collection box. The bottom end of the second collection box communicates with the water tank.

3. The dust removal and temperature reduction equipment for tunnel construction according to claim 2, wherein, The spraying assembly includes: A water pump is installed at one end of the water tank away from the second driving member. The water inlet end of the water pump communicates with the water tank. A spraying frame is installed at the output end of the water pump. A plurality of atomizing nozzles are evenly distributed on the spraying frame. The spraying frame is horizontal.

4. The dust removal and temperature reduction equipment for tunnel construction according to claim 1, characterized in that, The conveying pipe is wavy. The spray head is located at the inner top end of the conveying pipe and on the side of the conveying pipe away from the air inlet pipe.

5. The dust removal and temperature reduction equipment for tunnel construction according to claim 2, characterized in that, The shape of the first filter screen is circular, and the diameter of the first filter screen is the same as the inner diameter of the air inlet pipe; the second filter screen is strip-shaped, and the cross-sectional shape of the second filter screen is semicircular.

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