Distributed stepped blasting device

Abstract

The utility model relates to the technical field of blasting devices, and discloses a distribution step type blasting device which comprises an explosive tube and a liquid storage cylinder, the upper end face of the liquid storage cylinder is fixedly connected with an atomization spray head, the inner wall of the atomization spray head is fixedly connected with a threaded block, the threaded block is connected with a fixing mechanism in an engaged mode, and the fixing mechanism is fixedly connected with the liquid storage cylinder. The lower end face of the liquid storage cylinder is fixedly connected with an expansion pipe. By rotating a hexagonal connector, the hexagonal connector drives a rotating rod to rotate, the rotating rod moves upwards relative to a threaded block, the rotating rod drives a pressurizing rod to move upwards, the rotating rod extrudes an expansion pipe, the expansion pipe is extruded to expand outwards, the expansion pipe expands to extrude the inner wall of a blasting hole, and therefore the expansion pipe drives a liquid storage barrel to be fixed; the device has the first function of fixing the liquid storage cylinder to enable the explosive tube to be in a fixed state at the moment of explosion, and has the second function of blasting due to stepped blasting distribution, fixing the explosive tube through the expansion tube to reduce the influence of vibration generated by other blasting on the explosive tube, reduce the blasting error of the explosive tube and improve the precision of the explosive tube.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting devices, in particular to a distributed step-type blasting device. Background Art

[0002] Step blasting, also known as bench blasting, is a method of blasting rock in the form of steps. It is divided into deep hole step blasting and shallow hole step blasting according to the hole diameter and hole depth. This blasting method is one of the basic means in open-pit mining. The working principle of the distributed step blasting device usually involves the use of multiple levels of blasting agents, each of which is designed with different explosion time and power, so as to achieve deeper crushing based on the previous level of blasting.

[0003] The prior art improves blasting accuracy by performing multi-point blasting in stages when performing step blasting. However, during blasting, the shock wave generated by the blasting causes dust to fly around, polluting the surrounding environment. In addition, since it uses a multi-stage blasting method, the impact force generated during the first blasting will inevitably affect the explosives for the next blast, thereby affecting its blasting accuracy. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a distributed stepped blasting device, which has the advantages of reducing blasting errors and preventing the generation of a large amount of dust, thereby solving the problems in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a distributed stepped blasting device, comprising an explosive tube and a liquid storage cylinder, the upper end surface of the liquid storage cylinder is fixedly connected with an atomizing nozzle, the inner wall of the atomizing nozzle is fixedly connected with a threaded block, the threaded block is meshingly connected with a fixing mechanism, the lower end surface of the liquid storage cylinder is fixedly connected with an expansion tube, a dust removal mechanism is installed inside the liquid storage cylinder, and the explosive tube is fixedly installed at the lower part of the dust removal mechanism.

[0006] Preferably, the fixing mechanism comprises a rotating rod, a thread is arranged on the side wall of the rotating rod, the rotating rod is meshingly connected with the threaded block, the lower part of the rotating rod is rotatably connected with a pressure rod, and the upper end of the rotating rod is fixedly connected with a hexagonal joint.

[0007] Preferably, the dust removal mechanism includes a piston plate, which is slidably connected to the side wall of the liquid storage cylinder, the lower end of the piston plate is fixedly connected to a connecting sleeve, a sliding groove is opened on the side wall of the connecting sleeve, and the lower end of the connecting sleeve is fixedly connected to an isolation plate.

[0008] Preferably, the rotating rod passes through the piston plate and rotates in the inner wall of the connecting sleeve, the pressurizing rod is slidably connected in the inner wall of the sliding groove, and the side wall of the pressurizing rod abuts against the lower part of the expansion tube.

[0009] Preferably, the expansion tube has toughness, and the middle part of the expansion tube will bulge when the expansion tube is squeezed, so that the pressure rod squeezes the expansion tube.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. By rotating the hexagonal joint, the hexagonal joint drives the rotating rod to rotate, the rotating rod moves up relative to the threaded block, the rotating rod drives the pressurizing rod to move up, the rotating rod squeezes the expansion tube, the expansion tube is squeezed outward, the expansion tube expands and squeezes the inner wall of the blasting hole, so that the expansion tube drives the liquid storage cylinder to be fixed. Function 1: The liquid storage cylinder is fixed so that the explosive tube is in a fixed state at the moment of explosion. Function 2: Due to the stepped blasting distribution, the explosive tube is fixed by the expansion tube to reduce the impact of vibration caused by other blasting on the explosive tube, reduce its blasting error, and improve its accuracy.

[0012] 2. The impact force generated by the explosion of the explosive tube squeezes the isolation plate. At this moment, the liquid storage cylinder is fixed by the expansion tube and is not abolished along the impact. The isolation plate drives the connecting sleeve and the piston plate to move, and then the piston plate pressurizes the dust suppressant in the liquid storage cylinder, so that the dust suppressant is discharged through the atomizing nozzle, and the device sprays the dust suppressant, thereby reducing dust in the environment around the explosion point and preventing the generation of a large amount of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the dust removal mechanism of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model.

[0017] In the figure: 1, explosive tube; 2, liquid storage cylinder; 3, atomizing nozzle; 4, threaded block; 5, fixing mechanism; 6, expansion tube; 7, dust removal mechanism; 51, rotating rod; 52, hexagonal joint; 53, pressure rod; 71, piston plate; 72, connecting sleeve; 73, isolation plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4 A distributed step-type blasting device comprises an explosive tube 1 and a liquid storage cylinder 2, an upper end surface of the liquid storage cylinder 2 is fixedly connected with an atomizing nozzle 3, a threaded block 4 is fixedly connected to the inner wall of the atomizing nozzle 3, a fixing mechanism 5 is meshedly connected to the threaded block 4, an expansion tube 6 is fixedly connected to the lower end surface of the liquid storage cylinder 2, a dust removal mechanism 7 is installed inside the liquid storage cylinder 2, the explosive tube 1 is fixedly installed at the lower part of the dust removal mechanism 7, and the dust removal mechanism 7 is fixed by the fixing mechanism 5 so that the dust reduction agent is discharged through the atomizing nozzle 3, so that the device sprays the dust reduction agent;

[0020] The fixing mechanism 5 comprises a rotating rod 51, a thread is arranged on the side wall of the rotating rod 51, the rotating rod 51 is meshed with the thread block 4, a pressurizing rod 53 is rotatably connected to the lower part of the rotating rod 51, and a hexagonal joint 52 is fixedly connected to the upper end of the rotating rod 51. The hexagonal joint 52 is rotated by an external driving device, and the hexagonal joint 52 drives the rotating rod 51 to rotate, the rotating rod 51 moves upward relative to the thread block 4, and the rotating rod 51 drives the pressurizing rod 53 to move upward, and the rotating rod 51 squeezes the expansion tube 6, and the expansion tube 6 expands outward and squeezes the inner wall of the blasting hole, so that the expansion tube 6 drives the liquid storage cylinder 2 to be fixed, and the first function is to fix the liquid storage cylinder 2 so that the explosive tube 1 is in a fixed state at the moment of explosion, and the second function is to fix the explosive tube 1 by the expansion tube 6 due to the step-by-step blasting distribution, so as to reduce the influence of vibration generated by other blasting on the explosive tube 1, reduce its blasting error, and improve its accuracy;

[0021] The dust removal mechanism 7 includes a piston plate 71, which is slidably connected to the side wall of the liquid storage cylinder 2. The lower end of the piston plate 71 is fixedly connected to a connecting sleeve 72, and a sliding groove is provided on the side wall of the connecting sleeve 72. The lower end of the connecting sleeve 72 is fixedly connected to an isolation plate 73. The impact force generated when the explosive tube 1 explodes squeezes the isolation plate 73. At this moment, since the liquid storage cylinder 2 is fixed by the expansion tube 6 and is not abolished along with the impact, the isolation plate 73 drives the connecting sleeve 72 and the piston plate 71 to move, and then the piston plate 71 pressurizes the dust suppressant in the liquid storage cylinder 2, so that the dust suppressant is discharged through the atomizing nozzle 3, and the device sprays the dust suppressant, thereby performing dust reduction treatment on the environment around the explosion point and preventing the generation of a large amount of dust;

[0022] The rotating rod 51 penetrates the piston plate 71 and rotates in the inner wall of the connecting sleeve 72. The pressurizing rod 53 is slidably connected to the inner wall of the sliding groove. The side wall of the pressurizing rod 53 abuts against the lower part of the expansion tube 6. The rotating rod 51 rotates and rises, driving the rotating rod 51 to slide and rise in the sliding groove and squeeze the lower end of the expansion tube 6.

[0023] The expansion tube 6 has toughness. When the expansion tube 6 is squeezed, the middle part will bulge and the pressure rod 53 will squeeze the expansion tube 6. When the expansion tube 6 is squeezed, the middle part faces outward and squeezes the inner wall of the explosion hole, so that the device is fixed.

[0024] Working principle: When the device is working, the device is buried in the blasting hole, and the hexagonal joint 52 of the external driving device is rotated, and the hexagonal joint 52 drives the rotating rod 51 to rotate, and the rotating rod 51 moves up relative to the threaded block 4, and the rotating rod 51 drives the pressurizing rod 53 to move up, and the rotating rod 51 squeezes the expansion tube 6, and the expansion tube 6 expands outward due to the squeezing, and the expansion tube 6 expands and squeezes the inner wall of the blasting hole, so that the expansion tube 6 drives the liquid storage cylinder 2 to be fixed. Function 1: Fixing the liquid storage cylinder 2 makes the explosive tube 1 in a fixed state at the moment of explosion. Function 2: Due to the step-by-step blasting distribution, the explosive tube 1 is fixed by the expansion tube 6 to reduce the impact of the vibration generated by other blasting on the explosive tube 1, reduce its blasting error, and improve its accuracy;

[0025] The impact force generated when the explosive tube 1 explodes squeezes the isolation plate 73. At this moment, since the liquid storage cylinder 2 is fixed by the expansion tube 6 and is not abolished along with the impact, the isolation plate 73 drives the connecting sleeve 72 and the piston plate 71 to move, and then the piston plate 71 pressurizes the dust suppressant in the liquid storage cylinder 2, so that the dust suppressant is discharged through the atomizing nozzle 3, and the device sprays the dust suppressant, thereby performing dust reduction treatment on the environment around the explosion point and preventing the generation of a large amount of dust.

Claims

1. A distributed step-type blasting device, comprising an explosive tube (1) and a liquid storage cylinder (2), characterized in that: The upper end surface of the liquid storage cylinder (2) is fixedly connected to an atomizing nozzle (3), the inner wall of the atomizing nozzle (3) is fixedly connected to a threaded block (4), the threaded block (4) is meshedly connected to a fixing mechanism (5), the lower end surface of the liquid storage cylinder (2) is fixedly connected to an expansion tube (6), a dust removal mechanism (7) is installed inside the liquid storage cylinder (2), and the explosive tube (1) is fixedly installed at the lower part of the dust removal mechanism (7).

2. A distributed step blasting device according to claim 1, characterized in that: The fixing mechanism (5) comprises a rotating rod (51), a side wall of which is provided with a thread, the rotating rod (51) is meshedly connected with a threaded block (4), a lower portion of the rotating rod (51) is rotatably connected with a pressure rod (53), and an upper end of the rotating rod (51) is fixedly connected with a hexagonal joint (52).

3. A distributed step blasting device according to claim 2, characterized in that: The dust removal mechanism (7) comprises a piston plate (71), the piston plate (71) being slidably connected to the side wall of the liquid storage cylinder (2), the lower end of the piston plate (71) being fixedly connected to a connecting sleeve (72), a sliding groove being provided on the side wall of the connecting sleeve (72), and the lower end of the connecting sleeve (72) being fixedly connected to an isolation plate (73).

4. A distributed step-type blasting device according to claim 3, characterized in that: The rotating rod (51) passes through the piston plate (71) and rotates in the inner wall of the connecting sleeve (72), the pressurizing rod (53) is slidably connected in the inner wall of the sliding groove, and the side wall of the pressurizing rod (53) abuts against the lower part of the expansion tube (6).

5. A distributed step-type blasting device according to claim 1, characterized in that: The expansion tube (6) has toughness, and the middle of the expansion tube (6) will bulge in the extrusion state, so that the pressure rod (53) can squeeze the expansion tube (6).

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