阅读说明：本技术 一种爆破降尘炮被方法 (Blasting dust fall quilt blasting method ) 是由 高文乐 段耀奎 王燕萍 孙晓娟 于 2020-12-15 设计创作，主要内容包括：本发明提供一种爆破降尘炮被方法,包括以下步骤：(1)实施爆破前,将含有吸水功能材料的装置覆盖安装在被爆场地；(2)安装完成后,向该装置的吸水功能材料洒水,浸湿所述吸水材料,然后实施爆破。本发明提供的爆破降尘炮被方法,在爆破中同时起到防飞石和防粉尘的功效,装置结构简单,可重复利用,降尘效果极佳有效降低了环境污染及对施工人员的伤害。(The invention provides a blasting dust fall blasting method, which comprises the following steps: (1) before blasting, covering and installing a device containing water absorption functional materials on a blasted site; (2) after the installation is finished, sprinkling water to the water absorption functional material of the device, soaking the water absorption material, and then blasting. The blasting dust-fall blasting method provided by the invention has the effects of preventing flying stones and dust during blasting, the device has a simple structure, can be repeatedly used, and has an excellent dust-fall effect, so that the environmental pollution and the damage to constructors are effectively reduced.)

1. A blasting dust fall blasting method is characterized by comprising the following steps:

(1) before blasting, covering and installing a device containing water absorption functional materials on a blasted site;

(2) after the installation is finished, sprinkling water to the water absorption functional material of the device, soaking the water absorption material, and then blasting.

2. The blasting dust fall blasting method according to claim 1, wherein the device comprises an upper steel wire mesh layer and a lower steel wire mesh layer, and the water absorption functional material is sandwiched between the upper steel wire mesh layer and the lower steel wire mesh layer.

3. The method for blasting dust fall and blasting according to claim 2, wherein the device comprises: and the four corners of the frame are provided with support legs.

4. The blasting dust fall blasting method according to claim 3, wherein hooks are installed around the frame.

5. The blasting dust fall blasting method according to claim 3, wherein the legs are 30cm high; the long side of the frame is 2m, and the short side is 1m long.

6. The blasting dust fall blasting method according to claim 1, wherein the steel wire mesh is 40 x 0.9cm in size.

7. The blasting dust fall blasting method according to claim 1, wherein the water absorption functional material is formed by wrapping a certain amount of cotton with two layers of geotextiles.

Technical Field

The invention relates to the technical field of engineering blasting and environmental protection, in particular to a blasting dust fall quilt blasting method.

Background

The large scale of the strip mine can greatly affect the surrounding environment in the actual production, and the dust pollution is the most obvious. Especially, a large amount of dust is generated during the open blasting operation, due to the unique pit structure of the open mine, the dust in the pit is difficult to diffuse, and especially the small particle dust suspended in the air can be inhaled by a human body to cause the pneumoconiosis. Dust pollution has greatly limited green and efficient mining on mines.

The blasting technology is widely applied to engineering construction, along with the rapid development of engineering industry, the dependence of the engineering construction on the blasting technology is higher and higher, the application range of the blasting technology is wider and wider, but the damage of dust generated in the blasting process to the environment and the society is more and more concerned by people. The environmental hazard of blasting dust mainly comprises atmospheric pollution and destruction of an ecological system, and air after dust pollution seriously affects the quality of surrounding urban air through atmospheric circulation; therefore, the problem that technical personnel in the related field need to solve is urgently needed to be solved by researching blasting dust characteristics and dust falling technologies and establishing a set of complete, efficient and quick blasting dust falling technologies to solve the blasting dust problem.

The traditional surface mine blasting dust fall method is a method for spraying water on the ground surface of a blasting area before blasting to reduce blasting dust, which only can reduce the amount of dust generated on the ground surface, but when blasting, an explosive body is pushed towards the direction of an empty face, and the empty face and a blast hole can generate a large amount of dust.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a novel blasting dust-settling quilt-blasting method.

A blasting dust fall blasting method comprises the following steps:

(1) before blasting, covering and installing a device containing water absorption functional materials on a blasted site;

(2) after the installation is finished, sprinkling water to the water absorption functional material of the device, soaking the water absorption material, and then blasting.

Further, according to the blasting dust fall blasting method, the device comprises an upper steel wire mesh layer and a lower steel wire mesh layer, and the water absorption functional material is sandwiched between the upper steel wire mesh layer and the lower steel wire mesh layer.

Further, the blasting dust fall blasting method comprises the following steps: and the four corners of the frame are provided with support legs.

Furthermore, according to the blasting dust fall blasting method, hooks are mounted on the periphery of the frame.

Further, according to the blasting dust fall blasting method, the height of the supporting leg is 30 cm; the long side of the frame is 2m, and the short side is 1m long.

Further, according to the blasting dust fall blasting method, the specification of the steel wire mesh is 40 x 0.9 cm.

Further, according to the blasting dust fall blasting method, the water absorption functional material is formed by wrapping a certain amount of cotton with two layers of geotextiles.

Has the advantages that:

according to the blasting dust-fall blasting method provided by the invention, the dust-fall effect is excellent by arranging the high-performance water-absorbing material on the steel wire mesh, and the environmental pollution and the damage to constructors are effectively reduced.

The device provided by the invention has excellent and high-standard water absorption rate, has the characteristics of liquid retention performance and unchanged appearance after water absorption, can resist high-strength impact after the strength of the device is increased after water absorption, and is low in price, easy to obtain materials and easy to manufacture.

Drawings

FIG. 1 is a view showing the structure of the main body of the apparatus of the present invention;

FIG. 2 is a schematic diagram of the wire mesh structure of the apparatus of the present invention;

FIG. 3 is a schematic view of the structure of the water-absorbing material of the device of the present invention;

FIG. 4 is a schematic view of a hook structure of the apparatus of the present invention;

reference numerals:

1-a frame; 2-a leg; 3-steel wire mesh; 4-a water-absorbing material; 5-a hook.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described below clearly and completely, and it is obvious that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a blasting dust fall blasting method, which comprises the following steps:

(1) before blasting, covering and installing a device containing a water absorbing material 4 on a blasted site;

(2) after the installation is completed, water is sprayed to the water absorbing material of the device to soak the water absorbing material, and then blasting is performed.

Specifically, the water absorbing material has good water absorbing performance, the water overflowing performance is poor after water absorption, the water absorbing material can resist high-strength impact after water absorption, the effect is generated, that flyrock generated in blasting collides with the water absorbing functional material at a high speed, so that the wet high-performance water absorbing material is extruded, water reserved in the high-performance water absorbing material is extruded by a large force to form water mist, dust is absorbed, the water mist and the water mist are combined to fall to form slurry, and a small amount of residual dust which is not absorbed by the water mist floats to the high-performance water absorbing material to be absorbed by the high-performance water absorbing material.

Further, according to the blasting dust fall blasting method, the device comprises an upper steel wire mesh layer and a lower steel wire mesh layer 3, and the water absorption functional material 4 is sandwiched between the upper steel wire mesh layer and the lower steel wire mesh layer 3. The device further comprises: the steel wire mesh frame comprises a frame 1 for mounting an upper layer of steel wire mesh and a lower layer of steel wire mesh, and supporting legs 2 are arranged at four corners of the frame 1. And hooks 5 are arranged on the periphery of the frame 1.

The blasting dust-fall blasting method provided by the invention is characterized in that an explosive detonator is arranged in a blast hole of a blasted area before blasting, a blasting network is arranged in a blasted range, and the blasting dust-fall blasting device is transported to a blasted area, so that the device is not large, and can be assembled by only 2 to 3 persons. When the device is arranged, four support legs are straightened, about 10cm support legs are inserted into a soil layer, the support legs are tightly extruded into the soil position by a heavy object, according to the area of an explosion area, the quantity of the device is reasonably assembled by hooks reserved on the periphery of the device through the explosion dust falling cannon, the device completely covers an explosion area, after the assembly is finished, the device is pressed above the device by the heavy object to prevent flying stones generated during explosion from bouncing off the device, then the blasting dust falling cannon is sprayed by a high-performance water absorbing material on the device through a water spraying device, the water absorbing efficiency is low due to good water absorbing performance of the material, long-time water spraying is needed, the bottom layer of the high-performance water absorbing material is observed to be close to saturation, the water spraying can be stopped when water flows overflow slightly, after all work is finished, the blasting is initiated, the flying stones generated during explosion impact a steel wire mesh at high speed to further extrude the high-performance water absorbing material, and the water reserved in the high-performance water, form water smoke and combine with the dust, form the mud whereabouts, remaining dust that is not combined by water smoke is absorbed by high performance water-absorbing material, the flying stone that its energy is less flies out in the clearance of 20cm from the ground, be not enough to cause danger, dismouting the device after whole blasting process is accomplished, each item work is ended, play the effect of preventing the flying stone again because of the device, greatly reduced the emergence of major accident and the injury to the blasting staff, dust fall effect is splendid effectively reduced environmental pollution.

The device in the blasting dust fall blasting method provided by the invention has the long side of 2m and the short side of 1m, four peripheral corners of the blasting machine are respectively provided with a supporting leg support, the height of each supporting leg is 30cm, 20cm is reserved above the ground, a gap reserved between each supporting leg and the ground during blasting plays a role in air circulation, but the flying stones generated in the blasting process can not fly out of the gap of 20cm, the flying stones are ejected in the gap with a short distance and the energy for ejecting the flying stones is not large, so that the method can not cause substantial harm, when the support legs are arranged, the support legs are deeply embedded into the soil by 10cm, the support legs are tightly extruded into the soil by a heavy object, the device is assembled by the hooks reserved on the periphery, reasonably determining the assembling quantity of the device according to the size of the exploded area to ensure that the device completely covers the exploded area, placing a heavy object at the top corner of the device to press the device after the assembly is finished, the double guarantee is used for preventing flying stones generated in the blasting from flying the blasting dust falling gun by the device.

The device main part top surface is arranged in to the wire net, be connected through welded mode and main part, 5cm department links up apart from each edge of device main part, its used steel wire adopts galvanized steel wire rigidity strong, meet water and do not rust, be difficult to corrode, specification 40 x 0.9 is chooseed for use to the wire net, this specification wire net hole is slightly big, but intensity is high, and can prevent the large granule and bounce, the wire net also has the effect of protection high performance water-absorbing material, prevent that the flying stone from breaking high performance water-absorbing material, thereby increase the task load of follow-up repair work, play the probability that increases reuse.

The high-performance water absorbing material is low in price and easy to obtain, is formed by water absorbing base composite crosslinking groups in fibers and the like, and is a three-dimensional net structure reinforced by fluffy fiber nets under the action of the needling technology, namely the puncturing effect of felting needles and the friction force, cohesive force and extrusion force among the fibers. Therefore, the material has excellent and high-standard water absorption rate, has the characteristics of liquid retention performance and unchanged appearance after water absorption, but has low water absorption efficiency, so that water needs to be sprayed to the surface of the material for a long time, the bottom layer of the high-performance water absorbing material is observed to be nearly saturated, the water spraying can be stopped when water slightly overflows, and the material is arranged between two layers of steel wire meshes.

When the second layer of steel wire mesh is welded, a high-performance water absorbing material needs to be placed in advance and pressed and laid flat, in order to ensure that the high-performance water absorbing material does not dislocate, the high-performance water absorbing material needs to be bound on the steel wire mesh by using thin wires, the high-performance water absorbing material needs to be soaked by water before blasting, the high-performance water absorbing material has good water absorbing performance, the water overflowing performance after water absorption is poor, high-strength impact can be resisted after water absorption, the high-performance water absorbing material has the effect that flystones generated during blasting impact the steel wire mesh at high speed, so that the wet high-performance water absorbing material is extruded, water in the high-performance water absorbing material is extruded by force to form water mist, the water mist absorbs dust and falls down to form slurry after being combined with the dust, and a small amount of the remaining dust which is not absorbed by the water mist floats to the high-performance water absorbing material to be absorbed by the high-.

The hook in the blasting dust fall blasting quilt method provided by the invention is uniformly arranged at the position 3 reserved on the long side and the position 2 reserved on the short side of the device, wherein the direction of the hook of one long side and one short side is transverse, and the other side is vertical, and the hook is used for assembling a plurality of devices.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.