Down-the-hole drill smoke dust falling device for water conservancy construction

Abstract

The utility model relates to a down-the-hole drill smoke dust settling device for water conservancy construction, which comprises a mounting plate, a protective cylinder mounted at the bottom of the mounting plate, an annular water tank mounted inside the protective cylinder, and a plurality of nozzles mounted at the bottom of the annular water tank. A water inlet pipe communicated with the annular water tank is installed outside the protective cylinder, a protective net which is of an annular structure and used for covering the multiple nozzles is installed at the bottom of the annular water tank, the protective net is a rigid protective net, multiple reinforcing plates are installed at the bottom of the annular water tank, and the outer portions of the multiple reinforcing plates are attached to the inner wall of the protective net. In the using process, broken stones generated when the drill rod works can be intercepted through the arranged protective net 7, the situation that the nozzle is damaged due to the fact that the splashed broken stones collide with the nozzle is avoided, and therefore the service life of the nozzle in the using process is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite processing, and particularly relates to a down-the-hole drill smoke and dust reduction device for water conservancy construction. Background Technique

[0002] A down-the-hole drill is a device used to drill holes in rocks (load explosives into the drilled holes) before blasting in water conservancy projects. There are three types of models: hydraulic, internal combustion, and electric. When a down-the-hole drill used in a blasting environment is actually in use, it is installed on a carriage through a fixing plate. The carriage is equipped with a lead screw. When the lead screw is powered on, it drives the down-the-hole drill to move up and down, and along with the synchronous rotation of the drill bit, blasting holes for filling explosives are drilled in the mining area.

[0003] A down-the-hole drill rig is an impact rotary drill. Its internal structure is different from that of a general rock drill. Its air distribution and piston reciprocating mechanism are independent, that is, an impactor. Its front end is directly connected to the drill bit, and the rear end is connected to the drill rod. During the actual use of the existing down-the-hole drill rig, a large amount of dust will be generated. Referring to a crawler hydraulic down-the-hole drill with a dust reduction function with the publication number CN217380405U, during the dust reduction process of this patent, water is pumped into the spray ring through a water pump, and then sprayed out by a row of nozzles arranged on the inner side of the spray ring, so as to achieve the purpose of dust reduction. Since the nozzles are arranged on the inner side of the spray ring and there is no protective device for protecting the nozzles, when the down-the-hole drill is drilling, there will be a situation where broken stones fly. The flying broken stones are extremely easy to splash onto the nozzles, and the nozzles will be damaged under the action of the impact force of the broken stones, reducing the service life of the nozzles, which is not convenient for people to use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a down-the-hole drill smoke and dust reduction device for water conservancy construction with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A down-the-hole drill smoke and dust reduction device for water conservancy construction includes a mounting plate, a protective cylinder installed at the bottom of the mounting plate. An annular water tank is installed inside the protective cylinder. A plurality of nozzles are installed at the bottom of the annular water tank. A water inlet pipe communicated with the annular water tank is installed outside the protective cylinder. A protective net in a ring structure is installed at the bottom of the annular water tank and is used to cover the plurality of nozzles. A cleaning mechanism for cleaning the protective net is installed inside the protective cylinder.

[0007] As a further optimized scheme of the utility model, a protective cover in a horn shape is installed at the bottom of the protective cylinder.

[0008] As a further optimization solution of the present utility model, openings facilitating the passing of the drill pipe are provided at the connection between the mounting plate and the protective cylinder, and a plurality of sealing plates used in cooperation are installed inside the openings.

[0009] As a further optimization solution of the present utility model, the cleaning mechanism includes an annular plate rotatably connected to the top of the annular water tank, a plurality of connecting plates installed inside the annular plate, and a scraping plate installed on one side of the plurality of connecting plates and fitting with the outside of the protective net.

[0010] As a further optimization solution of the present utility model, a first bevel gear is installed on the inner wall of the protective cylinder, a second bevel gear meshing with the first bevel gear is installed outside the annular plate, and a rotary motor for driving the rotation of the first bevel gear is installed outside the protective cylinder.

[0011] As a further optimization solution of the present utility model, a plurality of reinforcing plates are installed at the bottom of the annular water tank, and the outer parts of the plurality of reinforcing plates are respectively in contact with the inner wall of the protective net.

[0012] The beneficial effect of the present utility model is that during the use of the present utility model, the protective net 7 provided can intercept the crushed stones generated when the drill pipe is working, preventing the flying crushed stones from hitting the nozzle and causing damage to the nozzle, thereby prolonging the service life of the nozzle during use. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the first sectional structural schematic diagram of the present utility model;

[0015] Figure 3 is the second sectional structural schematic diagram of the present utility model;

[0016] Figure 4 is the present utility model Figure 3 is the exploded view of the protective net and the reinforcing plate and the annular box in the present utility model;

[0017] Figure 5 is the present utility model Figure 2 is the enlarged view at A in the present utility model;

[0018] Figure 6 is the present utility model Figure 3 is the enlarged view at B in the present utility model;

[0019] Figure 7 is the present utility model Figure 4 is the enlarged view at C in the present utility model;

[0020] In the figure: 1, annular plate; 2, protective cylinder; 3, protective cover; 4, rotating motor; 5, water inlet pipe; 6, opening; 7, protective net; 8, sealing plate; 9, annular water tank; 10, connecting plate; 11, scraper; 12, nozzle; 13, first bevel gear; 14, annular plate; 15, second bevel gear; 16, reinforcing plate. Detailed implementation manners

[0021] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0022] As Figure 1 - Figure 7 shown, a down-the-hole drill smoke dust suppression device for water conservancy construction includes a mounting plate 1, a protective cylinder 2 installed at the bottom of the mounting plate 1, an annular water tank 9 installed inside the protective cylinder 2, a plurality of nozzles 12 installed at the bottom of the annular water tank 9, a water inlet pipe 5 connected to the annular water tank 9 and installed outside the protective cylinder 2, a protective net 7 installed at the bottom of the annular water tank 9 and used to cover the plurality of nozzles 12 in an annular structure. The protective net 7 is a rigid protective net. A plurality of reinforcing plates 16 are installed at the bottom of the annular water tank 9, and the outer parts of the plurality of reinforcing plates 16 are respectively attached to the inner wall of the protective net 7. By providing the plurality of reinforcing plates 16, the strength of the protective net 7 can be improved, and the situation of deformation of the protective net 7 during use can be reduced. A protective cover 3 in a horn shape is installed at the bottom of the protective cylinder 2. Openings 6 for the drill rod to pass through are provided at the connection between the mounting plate 1 and the protective cylinder 2. A plurality of sealing plates 8 that cooperate with each other are installed inside the openings 6. When the drill rod enters the inside of the protective cylinder 2 through the openings 6, the plurality of sealing plates 8 will seal the connection between the drill hole and the openings 6, thereby reducing the outflow of smoke.

[0023] It should be noted that for this down-the-hole drill smoke dust suppression device for water conservancy construction, during use, the other end of the water inlet pipe 5 can be connected to the water supply pipe of an external water supply device, and water supply is started through the external water supply device. Then, clean water enters the inside of the annular water tank 9 through the water inlet pipe 5. The water entering the inside of the annular water tank 9 will be sprayed out through the plurality of nozzles 12, and thus the dust generated when the drill rod of the down-the-hole drill drills can be sprayed and dust suppressed. The protective net 7 provided can intercept the crushed stones generated when the drill rod is working, avoiding the damage of the nozzles 12 caused by the splashing crushed stones hitting the nozzles 12, thereby extending the service life of the nozzles 12 during use.

[0024] Embodiment 2

[0025] As Figure 2- Figure 6 As shown in Figure 6 , the difference between this embodiment and Embodiment 1 is that a cleaning mechanism for cleaning the protective net 7 is installed inside the protective cylinder 2. The cleaning mechanism includes an annular plate 14 rotatably connected to the top of the annular water tank 9, a plurality of connecting plates 10 installed inside the annular plate 14, and a scraper 11 installed on one side of the plurality of connecting plates 10 and attached to the outside of the protective net 7. A first bevel gear 13 is installed on the inner wall of the protective cylinder 2, a second bevel gear 15 meshing with the first bevel gear 13 is installed outside the annular plate 14, and a rotary motor 4 for driving the first bevel gear 13 to rotate is installed outside the protective cylinder 2.

[0026] The further improved feature of this embodiment is that during the process of the drill pipe, the rotary motor 4 will drive the first bevel gear 13 to rotate. Under the meshing of the first bevel gear 13 and the second bevel gear 15, the annular plate 14 will rotate, thereby driving the plurality of connecting plates 10 to rotate. Driven by the plurality of connecting plates 10, the plurality of scrapers 11 will rotate, so as to clean the outside of the protective net 7, reduce the impurities adhered to the protective net 7, and enable the nozzle 12 to better perform dust reduction. During the process of the nozzle 12 performing dust reduction, it can further clean the protective net 7.

[0027] The above-described embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A smoke and dust suppression device for down-the-hole drilling used in water conservancy construction, comprising a mounting plate (1), a protective tube (2) mounted at the bottom of the mounting plate (1), characterized in that: An annular water tank (9) is installed inside the protective cylinder (2), a plurality of nozzles (12) are installed at the bottom of the annular water tank (9), a water inlet pipe (5) connected to the annular water tank (9) is installed outside the protective cylinder (2), a protective net (7) with an annular structure and used to cover the plurality of nozzles (12) is installed at the bottom of the annular water tank (9), and a cleaning mechanism for cleaning the protective net (7) is installed inside the protective cylinder (2).

2. The smoke and dust suppression device for down-the-hole drilling used in water conservancy construction according to claim 1 is characterized in that: A trumpet-shaped protective cover (3) is installed at the bottom of the protective cylinder (2).

3. The smoke and dust suppression device for down-the-hole drilling used in water conservancy construction according to claim 1 is characterized in that: The connection between the mounting plate (1) and the protective tube (2) is provided with an opening (6) for the drill rod to pass through, and a plurality of sealing plates (8) for use in conjunction with each other are installed inside the opening (6).

4. The smoke and dust suppression device for down-the-hole drilling used in water conservancy construction according to claim 1 is characterized by: The cleaning mechanism comprises an annular plate (14) rotatably connected to the top of the annular water tank (9), a plurality of connecting plates (10) mounted on the inner side of the annular plate (14), and a scraper (11) mounted on one side of the plurality of connecting plates (10) and in contact with the outside of the protective net (7).

5. The smoke and dust suppression device for down-the-hole drilling used in water conservancy construction according to claim 4 is characterized in that: A first bevel gear (13) is installed on the inner wall of the protective cylinder (2), a second bevel gear (15) meshing with the first bevel gear (13) is installed on the outside of the annular plate (14), and a rotating motor (4) driving the first bevel gear (13) to rotate is installed on the outside of the protective cylinder (2).

6. The smoke and dust suppression device for down-the-hole drilling used in water conservancy construction according to claim 1, characterized in that: A plurality of reinforcing plates (16) are installed at the bottom of the annular water tank (9), and the exteriors of the plurality of reinforcing plates (16) are respectively in contact with the inner wall of the protective net (7).

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