Open blasting dust falling device

Abstract

The utility model relates to an open blasting dust falling device which comprises an annular cover, the side wall of the annular cover is hollow, and the open blasting dust falling device is characterized in that a dust falling container is connected to the center of the annular cover in a sliding mode, the dust falling container is cylindrical, a dust falling piece is arranged in the dust falling container, and a water injection piece is arranged at the bottom end of the dust falling container. The utility model relates to the technical field of blasting dust fall. According to the surface blasting dust falling device, the dust falling container can be conveyed into the air through the impact force of blasting, then a piston piece is driven by pushing of a main spring and an auxiliary spring to be sprayed into the air from a mist spray head, and therefore the dust falling coverage range of the device is greatly widened, and the purposes that water mist can be sprayed from the air, and the dust falling efficiency is improved are achieved. The coverage range is expanded; and meanwhile, the dust falling coverage effect on the explosion center can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting dust reduction, in particular to an open-air blasting dust reduction device. Background Art

[0002] When demolishing old buildings or carrying out blasting construction for water conservancy, road, mining and other engineering projects, the huge impact force generated by the blasting will produce a large amount of dust dispersed in the air, seriously affecting the environment and human health.

[0003] In the prior art, a dust suppression device for open-air blasting proposed by the publication number CN215930709U includes a cylinder, a blasting chamber for installing explosives is arranged in the middle of the cylinder, a water chamber surrounding the blasting chamber is arranged at the edge of the cylinder, and the height of the blasting chamber is lower than that of the water chamber; a charging hole is arranged at the upper end of the blasting chamber, and an upper sealing chamber is arranged above the charging hole; a water inlet hole is arranged at the upper part of the water chamber, and the water inlet hole connects the water chamber and the upper sealing chamber; a lower sealing cover is arranged in the upper sealing chamber, and the lower sealing cover is tightly covered on the charging hole, and the height of the lower sealing cover is located below the water inlet hole in the horizontal direction; an upper sealing cover is arranged at the upper end of the upper sealing chamber, and a water injection hole is arranged on the upper sealing cover, and an elastic sealing mechanism is arranged between the upper sealing cover and the lower sealing cover, and the elastic sealing mechanism is sealed at the outlet of the water injection hole. The utility model is simple to operate, realizes all-round dust suppression around and above, and achieves the best dust suppression effect.

[0004] This application mainly uses the power of explosives to blow up the container during dust removal, so that the water inside is sprayed all around, thereby achieving the purpose of blasting dust reduction. However, after the outer container is blown up, due to the large power of the explosion, the container is directly blown up and it is possible that the water inside the container is sprayed out all at once, which makes it easy for water to fall to the ground quickly. The center of the explosion cannot be fully covered by the scattered water due to the aftermath of the explosion, which affects the dust reduction effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide an open-air blasting dust reduction device so as to solve the technical problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] An open-air blasting dust suppression device comprises an annular cover, the side wall of which is hollow, characterized in that a dust suppression container is slidably connected to the center of the annular cover, the dust suppression container is cylindrical, a dust suppression member is arranged in the dust suppression container, and a water injection member is arranged at the bottom end of the dust suppression container;

[0008] The dust reduction component includes a main spring, a piston plate and a number of mist nozzles. The main spring is arranged at the top of the dust reduction container. The top of the main spring is fixedly connected to the center of the top side of the dust reduction container. The piston plate is arranged in the dust reduction container and is connected to the dust reduction container as a piston. The top side of the piston plate is fixedly connected to the bottom end of the main spring. A number of through holes are opened at the bottom of the circumferential side of the dust reduction container, and a number of the mist nozzles are respectively connected to the corresponding through holes.

[0009] In a preferred example, the utility model can be further configured as follows: a number of auxiliary springs are arranged on the top side of the dust reduction container, and the auxiliary springs are distributed in a ring array and fixedly connected to the top side of the dust reduction container, and the bottom ends of the auxiliary springs are fixedly connected to the piston plate.

[0010] In a preferred example, the utility model can be further configured as follows: a positioning ring is fixedly connected to the circumferential side of the dust reduction container, and the bottom side of the positioning ring is in contact with the top side of the annular cover.

[0011] In a preferred example, the utility model can be further configured as follows: an annular groove is provided on the circumferential side wall of the annular cover at the mist nozzle, a sealing ring is fixedly installed in the annular groove, and the inner circumferential wall of the sealing ring fits with the dust reduction container at the through hole.

[0012] In a preferred example, the utility model can be further configured as follows: the water injection member includes a water injection hole, the water injection hole is opened on the bottom side wall of the dust reduction container, and an input one-way valve is fixedly connected in the water injection hole.

[0013] In a preferred example, the utility model can be further configured as follows: a protective plate is slidably connected to the inner circumference of the annular cover, and the top of the protective plate is in contact with the bottom of the dust reduction container.

[0014] In summary, the present invention includes at least one of the following beneficial technical effects:

[0015] 1. This kind of dust suppression device for open-air blasting can transport the dust suppression container into the air by the impact force of the explosion when in use, and then the piston piece will be driven by the main spring and the auxiliary spring to spray into the air from the mist nozzle, thereby greatly improving the dust suppression coverage of the device, achieving the effect of spraying water mist from the air, improving the coverage range and covering the dust suppression at the explosion center;

[0016] 2. In the dust suppression device for open-air blasting, the annular groove is used to fix the sealing ring, the inner shaft side of the sealing ring blocks the through hole, and further cooperates with the inner circumference of the annular cover to seal, thereby improving the sealing performance and preventing water from flowing out when there is no blasting, thereby causing the explosives to be wetted, thereby affecting the blasting work;

[0017] 3. The dust suppression device for open-air blasting, after the dust suppression container is placed, the external pipe is connected to the input one-way valve, and then the water channel is opened to transport water into the dust suppression container through the one-way valve, and then the piston plate and the main spring and the auxiliary spring are squeezed to prepare for spraying water mist outward;

[0018] 4. In this type of dust suppression device for open-air blasting, the distance between the input end of the one-way valve and the ground is higher than the height of the bottom side of the dust suppression container, so that the protective plate can protect the one-way valve to prevent the one-way valve from being damaged by the explosion, thereby causing direct water leakage, thereby reducing the pressure inside the dust suppression container, causing water to flow out directly from the damaged part of the one-way valve, affecting the spraying of water mist. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of an open-air blasting dust suppression device.

[0021] Figure 2 The utility model is a schematic diagram of the dissected structure of an open-air blasting dust suppression device.

[0022] Figure 3 The utility model is a schematic diagram of the structure of a dust suppression component of an open-air blasting dust suppression device.

[0023] Figure 4 The utility model is a schematic diagram of the annular internal structure of an open-air blasting dust suppression device.

[0024] In the figure, 1. annular cover; 2. dust reduction container; 3. dust reduction part; 4. water injection part; 5. main spring; 6. piston plate; 7. mist nozzle; 8. through hole; 9. auxiliary spring; 10. positioning ring; 11. annular groove; 12. sealing ring; 13. water injection hole; 14. input one-way valve; 15. protective plate. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] Example: Refer to Figure 1-Figure 4The utility model discloses an open-air blasting dust suppression device, comprising an annular cover 1, the side wall of which is hollow, characterized in that a dust suppression container 2 is slidably connected to the center of the annular cover 1, the dust suppression container 2 is cylindrical, a dust suppression member 3 is arranged in the dust suppression container 2, and a water injection member 4 is arranged at the bottom end of the dust suppression container 2;

[0027] The dust reduction component 3 includes a main spring 5, a piston plate 6 and a number of mist nozzles 7. The main spring 5 is arranged at the top of the dust reduction container 2. The top of the main spring 5 is fixedly connected to the center of the top side of the dust reduction container 2. The piston plate 6 is arranged in the dust reduction container 2 and is connected to the dust reduction container 2 as a piston. The top side of the piston plate 6 is fixedly connected to the bottom end of the main spring 5. A number of through holes 8 are opened at the bottom of the circumferential side of the dust reduction container 2, and a number of the mist nozzles 7 are respectively in the corresponding through holes 8.

[0028] In this embodiment, when in use, the annular cover 1 is filled with water. The top side of the annular cover 1 is connected to a water injection one-way valve in the prior art for water injection. The dust reduction container 2 is placed in the annular cover 1, and then the external pipe is connected through the water injection piece 4 for water injection. When the dust reduction container 2 is filled with water, the piston plate 6 can be pushed upward to perform piston movement, and then the main spring 5 is squeezed. The water injection stops after a certain amount of water is injected. The dust reduction container 2 is made of aluminum alloy explosion-proof material, which has the effects of light texture and high strength. Then, the explosive for blasting is placed in the bottom of the center of the annular cover 1 and is located below the dust reduction container 2, so that the dust reduction container 2 is in an upward direction, and the mist nozzle 7 will be blocked by the inner peripheral wall of the annular cover 1 to avoid water leakage.

[0029] After the preparation work is completed, blasting is carried out using explosives. After the blasting, the annular cover 1 will rupture and water will spray all around. At the moment of blasting, the dust will be reduced due to the dispersion of water, but the dust at the center of the blasting will be exposed to less water and will be partially evaporated due to the high temperature of the blasting. At this time, the dust reduction container 2 will be blown into the air due to the impact force of the blasting, and then the main spring 5 will squeeze the water in the dust reduction container 2. The water will be squeezed by the main spring 5 and sprayed out from the mist nozzle 7, so that the water can be sprayed into the air through the mist nozzle 7 and then fall to the ground. In the process of sprinkling to the ground, the dust scattered in the air will be subjected to dust reduction treatment, thereby further reducing the dust from the blasting and improving the dust reduction coverage of the device.

[0030] In a further preferred embodiment of the present invention, Figure 2 As shown, a number of auxiliary springs 9 are arranged on the top side of the dust reduction container 2. The auxiliary springs 9 are distributed in a ring array and fixedly connected to the top side of the dust reduction container 2. The bottom ends of the auxiliary springs 9 are fixedly connected to the piston plate 6.

[0031] In this embodiment, several auxiliary springs 9 are provided to cooperate with the main spring 5 to push the piston plate 6, so as to quickly push the water out of the dust reduction container 2, so as to avoid the main spring 5 being squeezed and reset, causing the piston plate 6 to move a certain distance and then having insufficient elastic force, thereby affecting the dust reduction work in the air.

[0032] In a further preferred embodiment of the present invention, Figure 1 As shown, a positioning ring 10 is fixedly connected to the circumferential side of the dust reduction container 2 , and the bottom side of the positioning ring 10 is in contact with the top side of the annular cover 1 .

[0033] In this embodiment, the positioning ring 10 is fixedly connected to the outer peripheral side of the dust reduction container 2, so that the dust reduction container 2 can be positioned on the annular cover 1, avoiding the dust reduction container 2 from completely entering the annular cover 1, thereby making it impossible to place explosives or causing the dust reduction container 2 to directly press on the explosives, causing damage to the explosives, thereby affecting the blasting work.

[0034] In a further preferred embodiment of the present invention, Figure 4 As shown, an annular groove 11 is formed on the circumferential side wall of the annular cover 1 at the mist nozzle 7 , a sealing ring 12 is fixedly installed in the annular groove 11 , and the inner circumferential wall of the sealing ring 12 fits with the dust reduction container 2 at the through hole 8 .

[0035] In this embodiment, the annular groove 11 is used to fix the sealing ring 12. The inner shaft side of the sealing ring 12 blocks the through hole 8, and further cooperates with the inner circumference of the annular cover 1 to seal, thereby improving the sealing performance and preventing water from flowing out when there is no blasting, thereby causing the explosives to be wetted, thereby affecting the blasting work.

[0036] In a further preferred embodiment of the present invention, Figure 3 As shown, the water injection member 4 includes a water injection hole 13 , and the water injection hole 13 is opened on the bottom side wall of the dust suppression container 2 , and an input one-way valve 14 is fixedly connected in the water injection hole 13 .

[0037] In this embodiment, after the dust reduction container 2 is placed, the external pipeline is connected to the input one-way valve 14, and then the water channel is opened to transport water into the dust reduction container 2 through the one-way valve, and then the piston plate 6, the main spring 5 and the auxiliary spring 9 are squeezed to prepare for spraying water mist outward.

[0038] In a further preferred embodiment of the present invention, Figure 2-4 As shown, a protective plate 15 is slidably connected to the inner circumference of the annular cover 1 , and the top of the protective plate 15 is in contact with the bottom of the dust reduction container 2 .

[0039] In this embodiment, the distance between the input end of the one-way valve and the ground is higher than the height of the bottom side of the dust reduction container 2, so that the protective plate 15 can protect the one-way valve to prevent the explosion from damaging the one-way valve, thereby causing direct water leakage, thereby reducing the pressure inside the dust reduction container 2, causing water to flow out directly from the damaged one-way valve, affecting the spraying of water mist.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An open-air blasting dust suppression device, comprising an annular cover (1), wherein the side wall of the annular cover (1) is hollow, and characterized in that: A dust reduction container (2) is slidably connected to the center of the annular cover (1); the dust reduction container (2) is cylindrical, a dust reduction member (3) is arranged inside the dust reduction container (2), and a water injection member (4) is arranged at the bottom end of the dust reduction container (2); The dust reduction component (3) comprises a main spring (5), a piston plate (6) and a plurality of mist nozzles (7); the main spring (5) is arranged at the top of the dust reduction container (2); the top of the main spring (5) is fixedly connected to the center of the top side of the dust reduction container (2); the piston plate (6) is arranged in the dust reduction container (2) and is connected to the dust reduction container (2) as a piston; the top side of the piston plate (6) is fixedly connected to the bottom end of the main spring (5); a plurality of through holes (8) are provided at the bottom of the circumferential side of the dust reduction container (2); and a plurality of the mist nozzles (7) are respectively connected to the corresponding through holes (8).

2. The open-air blasting dust suppression device according to claim 1, characterized in that: A plurality of auxiliary springs (9) are arranged on the inner top side of the dust reduction container (2); the auxiliary springs (9) are distributed in a ring array and fixedly connected to the inner top side of the dust reduction container (2); and the bottom ends of the auxiliary springs (9) are fixedly connected to the piston plate (6).

3. The open-air blasting dust suppression device according to claim 1, characterized in that: A positioning ring (10) is fixedly connected to the circumferential side of the dust reduction container (2), and the bottom side of the positioning ring (10) is in contact with the top side of the annular cover (1).

4. The dust suppression device for open-air blasting according to claim 1, characterized in that: An annular groove (11) is formed on the circumferential side wall of the annular cover (1) at the mist nozzle (7), a sealing ring (12) is fixedly installed in the annular groove (11), and the inner circumferential wall of the sealing ring (12) is in contact with the dust reduction container (2) at the through hole (8).

5. The dust suppression device for open-air blasting according to claim 1, characterized in that: The water injection member (4) comprises a water injection hole (13), the water injection hole (13) being formed on the bottom side wall of the dust suppression container (2), and an input one-way valve (14) being fixedly connected to the inside of the water injection hole (13).

6. The dust suppression device for open-air blasting according to claim 5, characterized in that: A protective plate (15) is slidably connected to the inner circumference of the annular cover (1), and the top of the protective plate (15) is in contact with the bottom of the dust reduction container (2).

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