CN112611283A - Environment-friendly blast hole plugging system and method - Google Patents
Environment-friendly blast hole plugging system and method Download PDFInfo
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- CN112611283A CN112611283A CN202011384294.4A CN202011384294A CN112611283A CN 112611283 A CN112611283 A CN 112611283A CN 202011384294 A CN202011384294 A CN 202011384294A CN 112611283 A CN112611283 A CN 112611283A
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- blast hole
- vibrating screen
- box
- drill bit
- side plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses an environment-friendly blast hole plugging system which comprises a collecting bin, a vibrating screen grain box, a forming device, a hole sealing mechanism and a feeding device, wherein the collecting bin, the vibrating screen grain box, the forming device, the hole sealing mechanism and the feeding device are sequentially communicated, the feeding device is used for conveying materials among all communicated structures, and the top of the vibrating screen grain box is connected with a suspension cable which is used for being fixed to a drill bit for drilling a blast hole; the top of the collecting bin is open, the side part of the collecting bin is attached to the tunnel face, and the collecting bin is arranged right below the drill bit; in the process of drilling a blast hole by a drill bit, particulate matters falling from the blast hole enter a collection bin, are sequentially screened by a vibrating screen particle box and are extruded into the blast hole to be blocked in a tunnel face by a hole sealing mechanism after being formed by a forming device. The invention collects the particles falling in the blast hole drilling process, screens the particles by using the vibration in the drill bit drilling process, and extrudes the screened fine particles into the blast hole to be plugged after molding, thereby realizing the on-site collection and secondary utilization of plugging materials, saving energy and well reducing the construction cost.
Description
Technical Field
The invention relates to the technical field of engineering blasting, in particular to an environment-friendly blast hole plugging system and method.
Background
In the initial development stage of tunnel blasting engineering, in the actual tunneling construction process of domestic tunnel blasting, a method that a blast hole is not backfilled and blocked or blasting is carried out only by rolling a explosive box paper shell into a coil and plugging the coil at the opening of the blast hole is generally adopted, the unscientific method is adopted, the effect of explosive explosion on stress waves generated in surrounding rocks cannot be fully utilized, the effect of expansion gas generated by explosive explosion cannot be fully utilized, the impact waves are too strong, the blasting vibration influence is large, and blasting flystones are too far away.
Research shows that blast hole plugging can affect the final blasting effect, reasonable plugging can prolong the action time of explosive gas, improve the explosive energy utilization rate, reduce flying stones and harmful gases, reduce the risk of gas, dust and other explosions, and improve the blasting effect.
Generally, the blast hole plugging material adopts special bonding materials, such as clay, some novel plugging materials and liquid plugging materials, the clay mode is adopted to bond various plugging particles into a whole by utilizing the bonding force of the clay, the novel plugging material mode is adopted to add a bonding agent or a gelling agent (such as cement, KT gelling agent and the like) into various plugging particles, the liquid plugging material adopts an organic foaming material with the initial state of liquid, and the organic foaming material can be quickly foamed and solidified into a whole after being sprayed into the blast hole by using related machinery. However, in the tunneling construction of each tunnel, the tunnel face needs to be propelled layer by layer in a blasting mode, which involves the use of a large amount of plugging materials, and the materials adopting the plugging methods cannot be reused, so that the construction cost is high, and the method is not beneficial to economy and environmental protection.
Disclosure of Invention
In view of the defects in the prior art, the invention provides the environment-friendly blast hole plugging system and method, which can realize the reutilization of materials such as rock powder, sand or clay generated in the drilling process, save the cost of specially purchasing blast hole plugging materials, are economic and environment-friendly and have higher practicability.
In order to achieve the purpose, the invention adopts the following technical scheme:
an environment-friendly blast hole plugging system comprises a collecting bin, a vibrating screen grain box, a forming device, a hole sealing mechanism and a feeding device, wherein the collecting bin, the vibrating screen grain box, the forming device, the hole sealing mechanism and the feeding device are sequentially communicated, the feeding device is used for conveying materials among the communicated structures, and the top of the vibrating screen grain box is connected with a suspension cable which is used for being fixed to a drill bit for drilling a blast hole; the top of the collecting bin is open, the side part of the collecting bin is attached to the face of a tunnel and is arranged right below the drill bit; in the process of drilling a blast hole by a drill bit, particles falling from the blast hole enter the collection bin, and are sequentially screened by the vibrating screen particle box and extruded into the blast hole to be blocked in the face by the hole sealing mechanism after the forming device is formed.
In one embodiment, the collection bin is connected with the vibrating screen grain box through a material guide pipe, and the bottom of the collection bin is higher than the inlet of the vibrating screen grain box.
In one embodiment, the bottom of the collecting bin is tapered, and the guide tube is connected to the tapered bottom of the collecting bin.
As one embodiment, the collecting bin comprises a first side plate for attaching to a face and a second side plate for facing away from the face, the lower end of the second side plate is inclined towards the first side plate, and the second side plate and the bottom surface of the collecting bin form the conical bottom.
In one embodiment, the first side plate is attached with a damping block for contacting a tunnel face, the second side plate is connected with a supporting component for abutting the damping block on the tunnel face, and the supporting component is arranged obliquely relative to the first side plate.
In one embodiment, the support assembly includes at least two telescopically coupled sub-supports, and the uppermost sub-support is rotatably coupled to the second side plate.
As one embodiment, the forming device comprises a bottom die, a water cavity, a water-absorbing sponge capable of storing water, and a microporous pressing plate with a plurality of micropores, wherein a plurality of forming holes are formed in the bottom die, the water-absorbing sponge and the microporous pressing plate are sequentially arranged at the bottom of the water cavity in a stacked manner, and water fed from an inlet of the water cavity passes through the water-absorbing sponge and then enters the micropores of the microporous pressing plate; material feeding unit is including locating the conveyer belt of the export below of shale shaker grain case certainly in the particulate matter that the export of shale shaker grain case dropped gets into the bottom mould on the conveyer belt of below, the water cavity is in orientation the in-process of bottom mould motion utilizes the micropore clamp plate compresses tightly the particulate matter the shaping is downthehole, and passes through the micropore court the downthehole supplementary moisture of shaping.
As one embodiment, the vibrating screen grain box comprises a box body, a vibrating screen and a supporting piece for supporting the vibrating screen in the box body, wherein the vibrating screen horizontally moves to impact the inner wall of the box body during the operation of the drill bit.
In one embodiment, the support member is a compression spring.
Another object of the present invention is to provide an environment-friendly blast hole plugging method, using any one of the above environment-friendly blast hole plugging systems, comprising:
drilling a blast hole by using a drill bit;
the collecting bin collects the particulate matters falling in the blast hole above;
the feeding device conveys the particles collected by the collection bin to the vibrating screen particle box;
the vibrating screen grain box vibrates along with the vibration generated in the working process of the drill bit above the vibrating screen grain box, screens out the grains with small grain size, and conveys the grains to the forming device through the feeding device;
after the forming device forms the particles, the particles are conveyed to a hole sealing mechanism through a feeding device;
and the hole sealing mechanism extrudes the manufactured and molded particles into the blast hole to be sealed in the tunnel face.
The invention collects the particles falling in the blast hole drilling process, screens the particles by using the vibration in the drill bit drilling process, extrudes the screened fine particles into the blast hole to be blocked in the face through the hole sealing mechanism after the forming process is carried out on the fine particles, realizes the on-site collection and secondary utilization of the blocking material, saves the energy required in the screening process and well reduces the construction cost.
Drawings
FIG. 1 is a schematic structural diagram of an environment-friendly blast hole plugging system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a collection chamber according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a vibratory screen grain box according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a hole sealing mechanism according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of a blast hole plugging method according to an embodiment of the present invention.
Detailed Description
In the present invention, the terms "disposed", "provided" and "connected" are to be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an embodiment of the present invention provides an environment-friendly blast hole plugging system, which includes a collection bin 10, a vibrating screen grain box 20, a forming device 30, a hole sealing mechanism 40, and a feeding device 50 for conveying materials between the communicated structures, which are sequentially communicated.
The collecting bin 10 is used for collecting particulate materials such as rock powder, sand or clay generated in the drilling process of the blast hole above, the particulate materials are conveyed into the vibrating screen grain box 20 by means of the feeding device 50, the vibrating screen grain box 20 picks out large-particle materials and uses small particles as plugging materials, the large-particle materials are conveyed to the forming device 30 through the feeding device 50 to be formed, and finally the formed plugging materials are extruded into another blast hole drilled by the hole sealing mechanism 40, so that one blast hole is plugged. Because the material drawn out of the blast hole is basically enough for plugging the blast hole, the special plugging material does not need to be purchased independently, so the raw material cost is saved, the material can be obtained locally, the reutilization can be realized, and the economic and environment-friendly effects are realized.
The top of the vibration sieve grain box 20 is connected with a suspension rope 1, the vibration sieve grain box 20 can be integrally fixed below a drill bit A for drilling a blast hole in a suspension mode through the suspension rope 1, violent vibration can be generated when the drill bit works, the vibration sieve grain box 20 is suspended on a main shaft of the drill bit through the vibration sieve grain box 20, the vibration sieve grain box 20 can sieve along with the vibration of the drill bit, fine particulate matters are separated, and the longitudinal jumping amplitude of the drill bit is reduced to a certain extent by the mode. The top of the suspension cable 1 can be connected with a lantern ring, and the lantern ring is sleeved on a main shaft of the drill bit to realize fixation.
As shown in fig. 2, the top of the collecting bin 10 of the present embodiment is open, and the side of the collecting bin is attached to the tunnel face Z, the collecting bin 10 is disposed under the drill bit a, and in the process of drilling the blast hole by the drill bit a, the particulate matters falling from the blast hole enter the collecting bin 10, and are sequentially screened by the vibrating screen particle box 20 and extruded into the blast hole to be plugged in the tunnel face Z by the hole sealing mechanism 40 after being formed by the forming device 30.
The collecting bin 10 comprises a first side plate 11 attached to the palm surface Z and a second side plate 12 facing away from the palm surface Z, the lower end of the second side plate 12 inclines towards the first side plate 11, and the second side plate 12 and the bottom surface of the collecting bin 10 form a conical bottom. In order to avoid leakage of particles in the drilling process between the collection bin 10 and the tunnel face Z, after installation is completed, the first side plate 11 at the side part of the collection bin 10 is in a vertical state and can be tightly attached to the tunnel face Z, the damping block 13 used for contacting the tunnel face is further attached to the surface of the first side plate 11, the second side plate 12 is connected with a supporting component 14 for enabling the damping block 13 to be abutted to the tunnel face, and the supporting component 14 is obliquely arranged relative to the first side plate 11.
The collection bin 10 is connected with the vibrating screen grain box 20 through the material guide pipe 2, and the bottom of the collection bin 10 is higher than the inlet of the vibrating screen grain box 20. Because the bottom of the collecting bin 10 is conical, the material guide pipe 2 is connected to the conical bottom of the collecting bin 10, and collected granular materials can be transported along the material guide pipe 2 naturally in a falling mode under the action of gravity. Here, the guide tube 2 is provided as a part of the feeding device 50 as a transport passage connecting the collecting bin 10 and the vibrating screen grain box 20.
As shown in fig. 2, the supporting assembly 14 includes at least two segments of sub-supporting members telescopically connected, and the sub-supporting member at the uppermost end is rotatably connected with the second side plate 12, and the sub-supporting member at the lowermost end is supported at a proper position on the ground, so that the first side plate 11 is supported against the tunnel face Z by obliquely supporting the second side plate 12. It can be understood that the supporting component 14 can be a frame body formed by a plurality of supporting members, for example, by making it into a tripod or a frame-shaped bracket, and rotatably connecting it with the second side plate 12 through a rotating shaft, so as to stably fix the second side plate 12, after the second side plate 12 is supported, the collecting bin 10 is supported by the palm surface Z and the supporting component 14 on two opposite sides respectively under the action of gravity, and by adjusting the working length of the supporting component 14 and the fixing position of the bottom end, the supporting height and angle of the collecting bin 10 can be adjusted, so as to tightly attach the first side plate 11 to different heights of the palm surface Z.
In addition, in order to collect the particulate matter falling from the top to the maximum, the collecting bin 10 further has a folded edge 121 formed by inclining from the top of the second side plate 12 to the outside of the collecting bin 10, the folded edge 121 is formed to make the collecting bin 10 have a larger opening, and the particulate matter falling from the blast hole above can enter the collecting bin 10 more smoothly and enter the bottom of the collecting bin 10 along the folded edge 121 and the second side plate 12 in sequence.
The collection bin 10 may further be provided with an exhaust fan 100, the exhaust fan 100 is disposed on a cross section crossing the collection bin 10, such as at a top opening, or at a bottom outlet connected to the material guiding pipe 2, the periphery of the exhaust fan 100 and the inner wall of the collection bin 10 are sealed, and only an airflow inlet of the exhaust fan is left. By the operation of the suction fan 100, dust scattered to the vicinity of the collection bin 10 can be maximally adsorbed therein, thereby collecting particulate matter as much as possible.
As shown in fig. 3, the vibrating screen grain box 20 includes a box 21, a vibrating screen 22, and a support member 23 for supporting the vibrating screen 22 in the box 21, an outlet of the vibrating screen grain box 20 is disposed at the bottom of the box 21, and the particulate matter falling from the outlet of the vibrating screen grain box 20 is conveyed by a conveyor belt below. The vibrations generated during operation of the drill a cause the vibrating screen 22 to move horizontally back and forth to hit the inner walls of the box 21, so that the fine particles are screened by the vibrating screen 22 onto the forming device 30 falling from the outlet at the bottom of the vibrating screen particle box 20 onto the conveyor belt below.
Preferably, the support member 23 is a compression spring, and a plurality of compression springs are arranged at intervals at the bottom of the box 21, and together carry the vibrating screen 22 in the box 21. The design utilizes the toughness of the pressure spring to pull the box body 21, and after the vibrating screen 22 is impacted on the box body 21 by the force in the horizontal direction, the pressure spring provides the elastic restoring force in the horizontal direction for the vibrating screen 22, so that the translation of the vibrating screen 22 is intensified, and the screening effect is improved.
In other embodiments, the support 23 may also be a magnetic suspension device, the magnetic suspension device includes two sets of magnetic poles, one set of magnetic poles is fixed at the bottom inside the box 21, the other set of magnetic poles is fixed at the bottom of the vibrating screen 22, and the magnetic ends of the two sets of magnetic poles are arranged toward each other, so that the vibrating screen 22 can freely reciprocate in the horizontal direction in the process of being vibrated, thereby screening the particulate matter, and the vibrating screen 22 rebounds after hitting the box 21, so reciprocating, and the screening efficiency can be remarkably ensured.
It will be appreciated that a vibratory motor may also be added to vibratory screen box 20 to increase the internal screening speed, if desired.
As shown in fig. 1, the forming device 30 specifically includes a bottom mold 31, a water cavity 32, a water-absorbing sponge 33 capable of storing water, and a microporous pressing plate 34 having a plurality of micropores, the water cavity 32, the water-absorbing sponge 33, and the microporous pressing plate 34 serve as an upper mold, and the bottom mold 31 is provided with a plurality of forming holes 310. The water-absorbing sponge 33 and the micropore pressing plate 34 are sequentially arranged at the bottom of the water cavity 32 in a laminated manner, and water fed from the inlet of the water cavity 32 passes through the water-absorbing sponge 33 and then enters micropores of the micropore pressing plate 34.
The feeding device 50 includes a conveyor belt disposed below the outlet of the vibrating screen grain box 20, and a plurality of bottom molds 31 are disposed at intervals in the conveying direction of the conveyor belt and move with the driving of the conveyor belt, so as to convey the particulate matter. Particulate matters falling from an outlet of the vibrating screen grain box 20 enter a bottom die 31 right below, an upper die consisting of a water cavity 32, a water absorbing sponge 33 and a micropore pressing plate 34 is arranged at a certain position of a conveying path of a conveyor belt, when the bottom die 31 carrying the particulate matters is conveyed to the lower part of the upper die, the upper die is pressed downwards to enter the bottom die 31, the water cavity 32 compresses the particulate matters in a forming hole 310 by using the micropore pressing plate 34 in the process of moving towards the bottom die 31, and water is supplemented into the forming hole 310 through micropores, so that the particulate matters are compressed in the forming hole 310 of the bottom die 31 after being formed at a certain humidity, and block-shaped or strip-shaped plugging materials are formed.
After the formed plugging material is taken out, the plugging material can be continuously conveyed to a special stemming bin 60 by the feeding device 50 for storage, so that the influence on transportation caused by the accumulation of the plugging material is avoided. Finally, the plugging material is conveyed by the feeding device 50 to the plugging mechanism 40.
As shown in fig. 4, the hole sealing mechanism 40 mainly includes a cylinder 41 and a loading block 42, the cylinder 41 is a hollow cylindrical structure, one end of the cylinder is provided with a material injection opening 400, a circumferential surface of the cylinder is provided with a loading opening 401, and the loading block 42 is partially arranged in the cylinder 41 and can reciprocate along the axial direction of the cylinder 41. When the plugging material supplied from the stemming bin 60 enters the barrel 41 from the charging port 401, the plugging material is extruded from the material injection port 400 into the blast hole by the extrusion of the plugging material by the charging block 42, thereby completing plugging.
Preferably, the hole sealing mechanism 40 may further include a positioning block 43, the positioning block 43 is in a ring shape, an inner diameter of the positioning block 43 matches with the material injection opening 400 of the barrel 41, and the positioning block 43 is fixed to the material injection opening 400 of the barrel 41 by being sleeved so that the material injection opening 400 partially protrudes out of the positioning block 43. When the blast hole needs to be plugged, the material injection opening 400 is vertically inserted in alignment with the blast hole, the positioning block 43 abuts against the surface of the rock around the blast hole to limit the depth of the material injection opening 400 inserted into the blast hole, and finally the plugging material is pressed into the blast hole along the material injection opening 400 by pushing the loading block 42. The positioning block 43 is arranged to realize the auxiliary positioning of the material injection opening 400, so that the barrel 41 can be prevented from extending into the blast hole too long or being inclined in the using process. It will be appreciated that the locating block 43 may also be integrally formed with the barrel 41.
As shown in fig. 4, the method for plugging an environment-friendly blast hole according to the embodiment of the present invention mainly includes:
and S01, drilling a blast hole by using the drill A.
The main shaft of the drill A is vertical to the tunnel face, and drilling can be carried out by adjusting the position of the drill A to the position of the blast hole.
And S02, collecting the particulate matters falling in the blast holes above the collecting bin 10.
Before the drill bit drills, the first side plate 11 of the collecting bin 10 is abutted against a face Z below a part to be drilled, and the first side plate 11 is adjusted to be attached to the rock stratum surface of the face below the drill bit by adjusting the supporting angle, the working length and the fixing part of the supporting assembly 14.
After the drilling is started, the particles falling from the upper side sequentially enter the bottom of the collecting bin 10 along the folded edge 121 and the second side plate 12. In addition, the dust scattered to the vicinity of the collecting chamber 10 can be maximally adsorbed therein by the suction fan 100.
S03, the feeding device 50 conveys the particles collected by the collection bin 10 to the vibrating screen particle box 20.
The collected particulate material can be transported by gravity to the vibrating screen particle box 20 by falling naturally from the conical bottom of the collection bin 10 along the guide tube 2.
S04, vibrating the vibrating screen grain box 20 along with the vibration generated during the working process of the drill A above, screening out the small-grain particles, and conveying the particles to the forming device 30 through the feeding device 50.
When the drill bit works, violent vibration generated by the drill bit is transmitted to the vibration grain screening box 20 hung on the main shaft of the drill bit, and the vibration grain screening box 20 can screen along with the vibration of the drill bit to separate fine particles.
After the vibrating screen 22 is impacted on the box body 21 by a horizontal force, the vibrating screen 22 is horizontally translated under the action of the supporting piece 23, the vibrating screen 22 repeatedly impacts on the box body 21 for screening, and particulate matters falling from an outlet of the vibrating screen particle box 20 enter a bottom die 31 which is opposite to the lower side.
S05, the forming device 30 is used for manufacturing and forming the particles, and then the particles are conveyed to the hole sealing mechanism 40 through the feeding device 50.
When the bottom die 31 carrying the particulate matter is transported to the lower side of the upper die, the upper die is pressed downwards to enter the bottom die 31, the water cavity 32 compresses the particulate matter in the forming hole 310 by using the micropore pressing plate 34 in the process of moving towards the bottom die 31, and water is supplemented into the forming hole 310 through micropores, so that the particulate matter is compressed in the forming hole 310 of the bottom die 31 after being formed at a certain humidity, and a block-shaped or strip-shaped plugging material is formed.
S06, the hole sealing mechanism 40 extrudes the manufactured and molded particles into the blast hole to be sealed in the tunnel face Z.
Firstly, the material injection port 400 is vertically inserted in alignment with the blast hole, the positioning block 43 is abutted against the surface of the rock around the blast hole, the depth of the material injection port 400 inserted into the blast hole is limited, and finally, the material loading block 42 is pushed to press the plugging material into the blast hole along the material injection port 400.
The invention collects the particles falling in the blast hole drilling process, screens the particles by using the vibration in the drill bit drilling process, extrudes the screened fine particles into the blast hole to be blocked in the face through the hole sealing mechanism after the forming process is carried out on the fine particles, realizes the on-site collection and secondary utilization of the blocking material, saves the energy required in the screening process and well reduces the construction cost.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (10)
1. The environment-friendly blast hole plugging system is characterized by comprising a collecting bin (10), a vibrating screen grain box (20), a forming device (30), a hole sealing mechanism (40) and a feeding device (50) which are communicated in sequence, wherein the feeding device (50) is used for conveying materials among the communicated structures, and the top of the vibrating screen grain box (20) is connected with a suspension rope (1) which is used for being fixed on a drill bit (A) for drilling a blast hole; the top of the collection bin (10) is open, and the side part of the collection bin is attached to the tunnel face (Z) and is arranged right below the drill bit (A); in the process of drilling a blast hole by a drill bit (A), particulate matters falling from the blast hole enter a collection bin (10), are sequentially screened by a vibrating screen particle box (20) and are extruded into the blast hole to be blocked in a tunnel face (Z) by a hole sealing mechanism (40) after being formed by a forming device (30).
2. The environment-friendly blast hole plugging system according to claim 1, wherein the collection bin (10) is connected with the vibrating screen particle box (20) through a material guiding pipe (2), and the bottom of the collection bin (10) is higher than the inlet of the vibrating screen particle box (20).
3. The environmental protection type blast hole plugging system according to claim 2, wherein the bottom of said collecting bin (10) is tapered, and said guide tube (2) is connected to the tapered bottom of said collecting bin (10).
4. An environment-friendly blast hole plugging system according to claim 3, wherein said collection bin (10) comprises a first side plate (11) for attaching to a face of a hand and a second side plate (12) for facing away from the face of the hand, the lower end of said second side plate (12) is inclined towards said first side plate (11), said second side plate (12) and the bottom surface of said collection bin (10) form said tapered bottom.
5. The environment-friendly blast hole plugging system according to claim 4, wherein the first side plate (11) is attached with a damping block (13) for contacting a tunnel face, the second side plate (12) is connected with a supporting component (14) for abutting the damping block (13) on the tunnel face, and the supporting component (14) is obliquely arranged relative to the first side plate (11).
6. An environmentally friendly blast hole plugging system according to claim 5, wherein said support assembly (14) comprises at least two telescopically connected sub-supports, and the uppermost sub-support is rotatably connected to said second side plate (12).
7. The environment-friendly blast hole plugging system according to claim 1, wherein the forming device (30) comprises a bottom mold (31), a water cavity (32), a water-absorbing sponge (33) capable of storing water, and a microporous pressing plate (34) with a plurality of micropores, the bottom mold (31) is provided with a plurality of forming holes (310), the water-absorbing sponge (33) and the microporous pressing plate (34) are sequentially arranged at the bottom of the water cavity (32) in a stacked manner, and water fed from an inlet of the water cavity (32) passes through the water-absorbing sponge (33) and then enters the micropores of the microporous pressing plate (34); material feeding unit (50) are including locating the conveyer belt of the export below of shale shaker grain case (20), certainly in die block (31) on the conveyer belt of the particulate matter entering below that the export of shale shaker grain case (20) was dropped, water cavity (32) are in the orientation the in-process of die block (31) motion utilizes micropore clamp plate (34) compress tightly the particulate matter in shaping hole (310), and pass through the micropore court replenish moisture in shaping hole (310).
8. The environment-friendly blast hole plugging system according to any one of claims 1 to 7, wherein the vibrating screen grain box (20) comprises a box body (21), a vibrating screen (22) and a supporting member (23) for supporting the vibrating screen (22) in the box body (21), and the vibrating screen (22) horizontally moves to impact the inner wall of the box body (21) during the operation of the drill bit (A).
9. The environmentally friendly blasthole plugging system of claim 8, wherein the support (23) is a compression spring.
10. An environment-friendly blast hole plugging method, characterized in that the environment-friendly blast hole plugging system of any one of claims 1 to 9 is adopted, and comprises:
drilling a blast hole by using a drill bit (A);
the collection bin (10) collects the particulate matters falling in the blast hole above;
the feeding device (50) conveys the particles collected by the collecting bin (10) to the vibrating screen particle box (20);
the vibrating screen grain box (20) vibrates along with the vibration generated in the working process of the drill bit (A) above, screens out the grains with small grain diameter, and transports the grains to the forming device (30) through the feeding device (50);
after the particles are manufactured and molded by the molding device (30), the particles are conveyed to the hole sealing mechanism (40) through the feeding device (50);
and the hole sealing mechanism (40) extrudes the manufactured and molded particles into the blast hole to be sealed in the tunnel face (Z).
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| CN112611283B (en) | 2022-10-28 |
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