Ventilation device for blasting

Abstract

The utility model particularly relates to a ventilation device for blasting, and belongs to the field of ventilation devices. The ventilation device for blasting comprises an air duct, an air inducing component and a spraying assembly. The air duct comprises an inlet section and an outlet section, the air inducing part is communicated with the air duct, the spraying assembly comprises a spraying cavity, a spraying part and a blocking part, the inlet section and the outlet section are communicated with the spraying cavity, the spraying cavity comprises a first side wall, the first side wall is provided with a water outlet and a vertically-extending sliding groove, the spraying part is contained in the spraying cavity, and the blocking part is arranged in the spraying cavity. The plugging part comprises a plate body and a cavity part connected to the plate body, the cavity part is connected to the sliding groove in a sliding mode, and the plate body covers the water outlet. The gas of the inlet section enters the spraying cavity and then enters the outlet section, and the dust content of the air discharged from the outlet section is reduced by spraying the dust falling medium through the spraying component.

Description

Technical Field

[0001] The utility model belongs to the field of ventilation devices, and particularly relates to a ventilation device for blasting. Background Art

[0002] A large amount of smoke and dust will be generated during blasting. If these smoke and dust are not treated, it may pose a safety hazard to the health of construction workers and may also pollute the environment. For example, when blasting in a sealed space such as a tunnel, in order to discharge the smoke and dust generated by blasting, a ventilation device needs to be set up. The ventilation device usually includes an air duct and an air extraction device. The air extraction device generates negative pressure in the air duct, so that the dust-containing air in the tunnel can be discharged through the air duct. The dust-containing air contains a large amount of dust. The traditional ventilation device directly discharges the dust-containing air, which not only pollutes the environment, but also may cause damage to the health of construction workers. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a ventilation device for blasting, which can reduce the dust content of the air discharged from the air duct.

[0004] To achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is: The embodiment of the present application provides a ventilation device for blasting, including an air duct, an air extraction component and a spraying component. The air duct includes an inlet section and an outlet section. The air extraction component is communicated with the air duct. The spraying component includes a spraying cavity, a spraying part and a blocking part. The inlet section and the outlet section are respectively communicated with the spraying cavity. The spraying cavity includes a first side wall. The first side wall is provided with a drain port. The first side wall is provided with a vertically extending chute. The spraying part is accommodated in the spraying cavity. The blocking part includes a plate body and a cavity part connected to the plate body. The cavity part is slidably connected to the chute. The plate body covers the drain port.

[0005] In some embodiments, the spraying component further includes an elastic member, and the elastic member is connected to the spraying cavity and the cavity part.

[0006] In some embodiments, a pressing plate is detachably arranged on the spraying cavity. The pressing plate is arranged above the cavity part, and the elastic member is arranged between the pressing plate and the cavity part.

[0007] In some embodiments, the pressing plate is provided with a protruding part, the elastic member is a spring, and the protruding part is inserted into the spring.

[0008] In some embodiments, a guide plate is arranged on the inner wall of the spraying cavity. One side of the guide plate is connected to the side wall of the spraying cavity, and the other side inclines towards the bottom wall of the spraying cavity.

[0009] In some embodiments, the drain port is arranged above the guide plate.

[0010] In some embodiments, a fixing component is further included. The fixing component includes a flexible sleeve body and a connecting member. The flexible sleeve body includes a first part and a second part which are oppositely arranged. Through holes are respectively arranged on the first part and the second part, and the connecting member passes through the through holes to divide the inner part of the flexible sleeve body into two chambers.

[0011] In some embodiments, the connecting member includes a bolt and a nut. The bolt passes through the through hole, and the nut is threadedly connected to the bolt.

[0012] In some embodiments, multiple through holes are provided.

[0013] The utility model has the following beneficial effects:

[0014] 1. The gas in the inlet section enters the spray chamber and then enters the outlet section. The dust-lowering medium is sprayed through the spray component, reducing the dust content in the air discharged from the outlet section.

[0015] 2. The movement of the plate body is controlled by the buoyancy received by the cavity part, so that when the liquid level in the spray chamber is too high, automatic drainage can be carried out, and the plate body resets after the drainage is completed.

[0016] 3. The drain outlet is arranged on the first side wall, so that the drain outlet is at a certain distance from the bottom wall of the spray chamber, enabling the spray medium to fully settle when the spray medium accumulates in the spray chamber, that is, the preliminary filtration operation can be completed in the spray chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the blasting ventilation device of the utility model;

[0018] Figure 2 is Figure 1 the enlarged view of part A of

[0019] Figure 3 is a schematic structural diagram of the flexible sleeve body of the utility model.

[0020] Reference numerals in the drawings: 1 - air guiding component, 2 - outlet section, 3 - inlet section, 4 - spray chamber, 5 - spray component, 6 - guide plate, 7 - flexible sleeve body, 8 - water supply pipeline, 9 - pressing plate, 10 - protruding part, 11 - elastic member, 12 - cavity part, 13 - plate body, 14 - drain outlet, 15 - bolt, 16 - nut, 17 - through hole, 18 - first part, 19 - second part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. If not specifically specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model.

[0023] The embodiment of the present application provides a ventilation device for blasting, which includes an air duct, an air guiding component 1, and a spraying assembly. The air duct includes an inlet section 3 and an outlet section 2. The air guiding component 1 is communicated with the air duct. The spraying assembly includes a spraying chamber 4, a spraying component 5, and a blocking component. The inlet section 3 and the outlet section 2 are respectively communicated with the spraying chamber 4. The spraying chamber 4 includes a first side wall. The first side wall is provided with a drain port 14. The first side wall is provided with a vertically extending chute. The spraying component 5 is accommodated in the spraying chamber 4. The blocking component includes a plate body 13 and a cavity portion 12 connected to the plate body 13. The cavity portion 12 is slidably connected to the chute. The plate body 13 covers the drain port 14.

[0024] The air guiding component 1 is used to enable the air duct to suck air from the inlet section 3 and discharge it from the outlet section 2.

[0025] The air guiding component 1 can be selected from existing products, and its structure and working principle are well-known to those skilled in the art, and will not be elaborated here.

[0026] The inlet section 3 and the outlet section 2 are respectively communicated with the spraying chamber 4, so that the gas in the inlet section 3 needs to pass through the spraying chamber 4 before entering the outlet section 2.

[0027] The spraying component 5 is used to spray a dust reduction medium. The spraying component 5 can be selected from existing products, and its structure and working principle are well-known to those skilled in the art, and will not be elaborated here.

[0028] By spraying the dust reduction medium with the spraying component 5, the dust content of the air discharged from the outlet section 2 is reduced.

[0029] When the spraying component 5 works, the spraying medium will accumulate in the spraying chamber 4. The drain port 14 is used to discharge the spraying medium after the spraying medium in the spraying chamber 4 accumulates to a certain amount.

[0030] The blocking component is used to control the opening and closing of the drain opening 14. Specifically, the plate body 13 covers the drain opening 14, so that the drain opening 14 is in a closed state. Since the cavity portion 12 is hollow inside, when the liquid level in the spray cavity 4 reaches the cavity portion 12, the cavity portion 12 rises under the action of buoyancy. As the liquid level further rises, the cavity portion 12 further rises until the drain opening 14 is opened, so that the spray medium can be discharged. On the contrary, when the liquid level in the spray cavity 4 drops to a certain extent, the cavity portion 12 descends, and the plate body 13 covers the drain opening 14 again, and the spray cavity 4 is closed.

[0031] The movement of the plate body 13 is controlled by the buoyancy force received by the cavity portion 12, so that when the liquid level in the spray cavity 4 is too high, automatic drainage can be performed, and after the drainage is completed, the plate body 13 resets.

[0032] Since the cavity portion 12 is hollow inside, the volume of the cavity portion 12 is relatively large, and the cavity portion 12 can better cooperate with the chute, thereby increasing the movement accuracy of the plate body 13.

[0033] The drain opening 14 is arranged on the first side wall, so that the drain opening 14 is at a certain distance from the bottom wall of the spray cavity 4. When the spray medium accumulates in the spray cavity 4, the spray medium can fully settle, that is, the preliminary filtration operation can be completed in the spray cavity 4.

[0034] In some embodiments, the spray assembly further includes an elastic member 11, and the elastic member 11 is connected to the spray cavity 4 and the cavity portion 12.

[0035] The elastic member 11 can be a spring.

[0036] The spring is connected to the spray cavity 4 and the cavity portion 12. When the cavity portion 12 moves, the elastic member 11 can generate elastic deformation, and the elastic restoring force generated by the elastic member 11 facilitates the reset of the plate body 13 and reduces the risk that the cavity portion 12 is stuck due to the action of friction.

[0037] In some embodiments, the spray cavity 4 is detachably provided with a pressing plate 9. The pressing plate 9 is arranged above the cavity portion 12, and the elastic member 11 is arranged between the pressing plate 9 and the cavity portion 12.

[0038] The elastic member 11 is arranged above the cavity portion 12, which is convenient for the disassembly and assembly of the elastic member 11.

[0039] The pressing plate 9 is detachably connected to the spray cavity 4, which is convenient for disassembling and assembling the elastic member 11 after removing the pressing plate 9.

[0040] Furthermore, a maintenance cavity can be arranged at the top of the spray cavity 4, and the inside of the spray cavity 4 can be maintained through the maintenance cavity.

[0041] In some embodiments, the pressing plate 9 is provided with a protruding portion 10, the elastic member 11 is a spring, and the protruding portion 10 is inserted into the spring.

[0042] The protruding part 10 is inserted into the spring, so that the spring can be positioned through the protruding part 10, reducing the risk of the spring being misaligned.

[0043] In some embodiments, a guide plate 6 is provided on the inner wall of the spray chamber 4. One side of the guide plate 6 is connected to the side wall of the spray chamber 4, and the other side is inclined towards the bottom wall of the spray chamber 4.

[0044] The guide plate 6 is inclined towards the spray chamber 4. On the one hand, when the spray medium in the spray chamber 4 settles, it is convenient for the solid matter to gather towards the bottom of the spray chamber 4. On the other hand, a chamber with an opening smaller than the inside can be formed at the bottom of the spray chamber 4. When the spray medium is discharged from the spray chamber 4, the risk of the solid matter being driven out of the drain port 14 by the flowing water is reduced.

[0045] In some embodiments, the drain port 14 is provided above the guide plate 6.

[0046] The drain port 14 is provided above the guide plate 6, so that the guide plate 6 can play a blocking role, reducing the risk of the solid matter being discharged from the drain port 14 along with the water flow when the spray medium is discharged from the drain port 14.

[0047] In some embodiments, a fixing component is further included. The fixing component includes a flexible sleeve 7 and a connecting piece. The flexible sleeve 7 includes a first part 18 and a second part 19 which are oppositely arranged. Through holes 17 are respectively provided on the first part 18 and the second part 19, and the connecting piece passes through the through holes 17 to divide the interior of the flexible sleeve 7 into two chambers.

[0048] The flexible sleeve 7 is used to fix the air duct. For example, when the ventilation device in the embodiment of the present application is applied to a tunnel, the air duct can be fixed on other pipes installed in the tunnel. For example, the water supply pipe 8 in the tunnel can be passed through one of the chambers, and the ventilation pipe can be passed through the other chamber, so that the ventilation pipe can be fixed to the water supply pipe 8.

[0049] The connecting piece passes through the through holes 17 of the first part 18 and the second part 19, so that the chamber formed by the first part 18 and the second part 19 can be reduced, and the first part 18 and the second part 19 can clamp the components passing through the two chambers.

[0050] In some embodiments, the connecting piece includes a bolt 15 and a nut 16. The bolt 15 passes through the through hole 17, and the nut 16 is threadedly connected to the bolt 15.

[0051] The head of the bolt 15 abuts against one of the first part 18 and the second part 19, and the nut 16 abuts against the other of the first part 18 and the second part 19, so that when the nut 16 is screwed, the first part 18 and the second part 19 can be closed to clamp the component passing through them.

[0052] In some embodiments, a plurality of through holes 17 are provided.

[0053] A plurality of through holes 17 are provided. On the one hand, a plurality of connectors can be correspondingly provided, increasing the connection strength between the first part 18 and the second part 19. On the other hand, by adjusting the through holes 17 through which the connectors pass, the size of the chamber formed by the first part 18 and the second part 19 can be adjusted.

[0054] The above embodiments only describe the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, variations, modifications, and substitutions made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A ventilation device for blasting, characterized in that: include: An air duct, comprising an inlet section (3) and an outlet section (2); An air inducing component (1) communicated with the air duct; A spray assembly comprises a spray chamber (4), a spray component (5) and a blocking component, wherein the inlet section (3) and the outlet section (2) are respectively connected to the spray chamber (4), the spray chamber (4) comprises a first side wall, the first side wall is provided with a drain port (14), the first side wall is provided with a vertically extending slide groove, the spray component (5) is accommodated in the spray chamber (4), the blocking component comprises a plate body (13) and a cavity portion (12) connected to the plate body (13), the cavity portion (12) is slidably connected to the slide groove, and the plate body (13) is covered on the drain port (14).

2. The ventilation device for blasting according to claim 1, characterized in that: The spray assembly further comprises an elastic member (11), wherein the elastic member (11) is connected to the spray chamber (4) and the cavity portion (12).

3. The ventilation device for blasting according to claim 2, characterized in that: The spray chamber (4) is detachably provided with a pressing plate (9), the pressing plate (9) being arranged above the cavity portion (12), and the elastic member (11) being arranged between the pressing plate (9) and the cavity portion (12).

4. The ventilation device for blasting according to claim 3, characterized in that: The pressing plate (9) is provided with a protruding portion (10), the elastic member (11) is a spring, and the protruding portion (10) is inserted into the spring.

5. The ventilation device for blasting according to claim 1, characterized in that: The inner wall of the spray chamber (4) is provided with a guide plate (6), one side of the guide plate (6) is connected to the side wall of the spray chamber (4), and the other side is inclined toward the bottom wall of the spray chamber (4).

6. The ventilation device for blasting according to claim 5, characterized in that: The drainage port (14) is arranged above the guide plate (6).

7. The ventilation device for blasting according to claim 1, characterized in that: The invention also comprises a fixing assembly, the fixing assembly comprising a flexible sleeve (7) and a connecting piece, the flexible sleeve (7) comprising a first part (18) and a second part (19) arranged opposite to each other, the first part (18) and the second part (19) are respectively provided with a through hole (17), and the connecting piece is passed through the through hole (17) to separate the interior of the flexible sleeve (7) into two chambers.

8. The ventilation device for blasting according to claim 7, characterized in that: The connecting member comprises a bolt (15) and a nut (16); the bolt (15) is inserted into the through hole (17); and the nut (16) is threadedly connected to the bolt (15).

9. The ventilation device for blasting according to claim 8, characterized in that: The through holes (17) are arranged in plurality.

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