CN111379531B - Dust removal equipment and dust removal method for soft rock tunnel surrounding rock dry drilling - Google Patents
Dust removal equipment and dust removal method for soft rock tunnel surrounding rock dry drilling Download PDFInfo
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- CN111379531B CN111379531B CN202010306307.XA CN202010306307A CN111379531B CN 111379531 B CN111379531 B CN 111379531B CN 202010306307 A CN202010306307 A CN 202010306307A CN 111379531 B CN111379531 B CN 111379531B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/07—Arrangements for treating drilling fluids outside the borehole for treating dust-laden gaseous fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/024—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting having means for adapting to inclined terrain; having means for stabilizing the vehicle while drilling
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Abstract
The invention discloses dust removing equipment for soft rock tunnel surrounding rock dry drilling, which comprises a base, wherein the base is of a separated structure and consists of a left base plate and a right base plate, the left base plate and the right base plate are fixedly connected through a telescopic column, and a containing groove for containing the telescopic column is formed in one surface, facing the left base plate, of the right base plate; the invention also provides a dust removal method for the soft rock tunnel surrounding rock dry drilling, which comprises the following steps: and S1, pushing the dust removing equipment to a working site, and detaching bolts and nuts inside the threaded fastening ring 15 after the dust removing equipment reaches the working site. This a dust collecting equipment for soft rock tunnel country rock dry process drilling adopts air intake fan to carry the air current and blows off by the venthole of outlet duct bottom, continuously blows the dust that the during operation produced, avoids the staff to inhale the air that has the dust, has set up a plurality of atomizer simultaneously, carries out the dust fall to the air and handles to make this dust collecting equipment have the effect that the protection staff is healthy and remove dust.
Description
Technical Field
The invention relates to the technical field of tunnel drilling, in particular to dust removal equipment and a dust removal method for soft rock tunnel surrounding rock dry drilling.
Background
Along with the more developed road construction in China, the gravity center of the road construction is slowly transferred to the road construction in mountainous areas, the unfavorable geological conditions encountered in the construction of the mountainous areas are more and more, and the proportion of weak and broken surrounding rock tunnels is larger. During tunnel construction, drilling is an indispensable work, and drilling in the construction is many and quantity is big, produces the dust more. Especially when the tunnel inner wall is drilled, the raised dust seriously interferes with the sight and health of constructors, and influences the construction period and the safety.
In the construction process, soft rock geology can occur, and the soft rock is an engineering rock body which can generate obvious deformation under the action of engineering force. The research of the soft rock not only pays attention to the strength characteristic of the soft rock, but also pays attention to the magnitude of the engineering force born by the soft rock, and the relative essence of the soft rock is analyzed and grasped from the opposite unified relationship between the strength of the soft rock and the engineering force.
In the soft rock drilling process, dry drilling is mostly adopted, water does not need to be injected during the dry drilling process, so that flying of dust is increased, most workers wear masks in the construction process, the masks are frequently replaced, the construction period is influenced, expenditure and consumption are increased, and therefore the dust removal device is provided for protecting the health of workers.
Disclosure of Invention
The invention aims to provide dust removal equipment and a dust removal method for soft rock tunnel surrounding rock dry drilling, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a dust removal device and a dust removal method for soft rock tunnel surrounding rock dry drilling comprise a base, wherein the base is of a separated structure and comprises a left base plate and a right base plate, a telescopic column is communicated between the left base plate and the right base plate and fixedly connected with the left base plate, a containing groove for containing the telescopic column is formed in one surface, facing the left base plate, of the right base plate, adjusting rolling components extending to the lower surfaces of the left base plate and the right base plate are respectively inserted into the upper surfaces of the left base plate and the right base plate, adjusting supporting legs are fixedly connected with the lower surfaces of the left base plate and the right base plate, a left vertical plate and a right vertical plate which are parallel to each other are respectively fixedly connected with the upper surfaces of the left base plate and the right base plate, the opposite surfaces of the left vertical plate and the right vertical plate are respectively inserted with a same air outlet pipe, a plurality of air outlet holes are formed in the lower surface of the air outlet pipe, and linear bearings are arranged at the joints of the left vertical plate and the right vertical plate, a plurality of atomizer are installed in right side vertical plate left side, the right side of right side vertical plate is installed and is pressed the water supply assembly in water source for the atomizer provides.
Preferably, flexible post comprises two interior sleeve pipes and outer tube of pegging graft each other, and the left end of outer tube and the right side fixed connection of left bed plate, interior sheathed tube right-hand member and the left side fixed connection of right bed plate, the push rod is installed on the right side of right bed plate, and the top cover of push rod is equipped with rubber antiskid cover.
Preferably, adjust the rolling subassembly including seting up the through-hole at left bed plate and right bed plate upper surface, the inside grafting of through-hole has the regulation post, the universal wheel is installed to the bottom of adjusting the post, a plurality of location screw holes have been seted up in the front of adjusting the post, and the front and the back of left bed plate and right bed plate threaded connection respectively have one to extend to the inside positioning bolt of location screw hole.
Preferably, adjust the supporting leg by install at the screw rod of left bed plate and right bed plate lower surface and with screw rod surface threaded connection's internal thread end section of thick bamboo and constitute, the total quantity of adjusting the supporting leg is four, the border department that left side bed plate and right bed plate are close to each other installs the screw fastening ring, and left bed plate and right bed plate utilize screw fastening ring, bolt and nut relatively fixable.
Preferably, the upper surface of the left vertical plate is provided with a containing groove, the inner bottom wall fixedly connected with transparent plastic of the containing groove is blocked and filled up, the transparent plastic is blocked and filled up the one end fixedly connected with location strip of keeping away from the containing groove, the location round hole has been seted up on the surface of location strip, the right flank of the left vertical plate is inlayed and is equipped with the LED light.
Preferably, the upper surface of the right vertical plate is provided with a vertically-placed internal thread cylinder, and the internal thread of the internal thread cylinder is connected with a positioning thread bolt with a screw diameter smaller than the diameter of the positioning round hole and a nut diameter larger than the diameter of the positioning round hole.
Preferably, the water supply subassembly is including installing the pressurized water tank at right bed plate upper surface, the inlet tube is installed on pressurized water tank's right side, and the entrance of inlet tube is provided with sealed lid, and is a plurality of atomizer's oral siphon extends to pressurized water tank's inside, and apart from pressurized water tank interior diapire distance 2 centimetres, pressurized water tank's side-mounting has a plurality of spliced poles with push rod fixed connection, pressurized water tank's front inlays and is equipped with the liquid level display strip, and the material of liquid level display strip is transparent ya keli.
Preferably, pressurized water tank's upper surface mounting has the inflator for the inside gas injection of pressurized water tank, the output tube of inflator and pressurized water tank's inside intercommunication, the surface of output tube is provided with the check valve, the check valve is used for restricting the inside one-way inside that gets into pressurized water tank of inside gas of inflator.
Preferably, the upper surface of the left base plate is respectively provided with a storage battery and an air inlet fan for providing an air source for the air outlet pipe, the storage battery is coupled with the air inlet fan, the air inlet end of the air inlet fan is provided with a filter screen, the number of meshes of the filter screen is 140-mesh and 160-mesh, and the air outlet end of the air inlet fan is communicated with the air outlet pipe through a connecting pipe.
The invention also provides a dust removal method for the soft rock tunnel surrounding rock dry drilling, which comprises the following steps:
s1, pushing the dust removing equipment to a working place, and detaching bolts and nuts inside the threaded fastening ring 15 after the dust removing equipment reaches the position;
s2, pulling the left base plate and the right base plate to separate, then rotating the adjusting support leg to contact with the ground, assisting the universal wheel to support, and drilling;
s3, enabling a worker to enter the space between the left vertical plate and the right vertical plate on the base to conduct dry drilling operation;
s4, before work, air is injected into the pressurized water tank through the air cylinder, water in the pressurized water tank is driven by air pressure to be sprayed out by the atomizing spray head to form dust-settling water mist, meanwhile, a power supply of the air inlet fan is connected to drive external air to enter the air outlet pipe after being filtered by the filter screen, and air is blown continuously through the air outlet hole in the lower surface of the air outlet pipe to prevent workers from sucking air with dust;
s5, taking out the positioning strip from the inside of the containing groove, fixing the positioning strip with the internal thread cylinder and the positioning thread bolt above the right vertical plate, and enabling the transparent plastic blocking pad to form a dust blocking protective layer above the head of a worker to prevent dust falling above the tunnel due to vibration, thereby carrying out all-round dust removal and dust blocking.
Advantageous effects
The invention provides dust removal equipment and a dust removal method for soft rock tunnel surrounding rock dry drilling, which have the following beneficial effects:
1. this a dust collecting equipment for soft rock tunnel country rock dry process drilling, adopt the left bed plate and the design of right bed plate of disconnect-type, make the whole length of this base be convenient for adjust, the staff of being convenient for gets into the space on the base and be located between left vertical plate and the right vertical plate, carry out the drilling operation, adopt air intake fan to carry the air current and blow off by the venthole of outlet duct bottom, the dust that produces the during operation lasts to blow, avoid the staff to inhale the air that has the dust, a plurality of atomizer have been set up simultaneously, carry out the dust fall to the air and handle, thereby make this dust collecting equipment have the effect that the protection staff is healthy and remove dust.
2. This a dust collecting equipment for soft rock tunnel country rock dry process drilling adopts location strip, location round hole, an internal thread section of thick bamboo and location screw to tie to fix transparent plastic and keeps off the pad, makes it form a fender ash inoxidizing coating that is located staff's head top, prevents the ash that falls of tunnel top because of vibrations production, through setting up and accomodate the groove, the transparent plastic of being convenient for keeps off accomodating to make this dust collecting equipment have the all-round effect of keeping off ash and dust removal.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the front view (right base plate front cut) structure of the base of the present invention;
fig. 4 is a schematic sectional view of the left vertical plate of the present invention.
In the figure: 1 left base plate, 2 right base plates, 3 telescopic columns, 4 adjusting supporting legs, 5 left vertical plates, 6 right vertical plates, 7 air outlet pipes, 8 linear bearings, 9 atomizing nozzles, 10 push rods, 11 adjusting columns, 12 universal wheels, 13 positioning threaded holes, 14 positioning bolts, 15 threaded fastening rings, 16 accommodating grooves, 17 transparent plastic blocking pads, 18 positioning strips, 19 positioning round holes, 20 LED illuminating lamps, 21 internal threaded cylinders, 22 positioning threaded bolts, 23 pressurized water tanks, 24 water inlet pipes, 25 air cylinders, 26 output pipes, 27 one-way valves, 28 storage batteries, 29 air inlet fans and 30 connecting pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a dust collecting equipment and dust removal method for soft rock tunnel country rock dry process drilling, the on-line screen storage device comprises a base, the base is disconnect-type structure, constitute by left bed plate 1 and right bed plate 2, lead to flexible post 3 fixed connection between the two, and the recess of accomodating that is used for accomodating flexible post 3 is offered towards the one side of left bed plate 1 to right bed plate 2, flexible post 3 comprises two interior sleeve pipes and the outer tube of pegging graft each other, and the left end of outer tube and the right side fixed connection of left bed plate 1, interior sheathed tube right end and the left side fixed connection of right bed plate 2, push rod 10 is installed on the right side of right bed plate 2, and the top cover of push rod 10 is equipped with rubber antiskid cover.
The upper surface of left bed plate 1 and right bed plate 2 is all pegged graft and is had the regulation rolling subassembly that extends to the lower surface of left bed plate 1 and right bed plate 2, adjust the rolling subassembly including seting up the through-hole at left bed plate 1 and 2 upper surfaces of right bed plate, the inside grafting of through-hole has regulation post 11, adjust the bottom of post 11 and install universal wheel 12, a plurality of positioning screw hole 13 have been seted up in the front of regulation post 11, the front of left bed plate 1 and right bed plate 2 and the back respectively threaded connection have one to extend to the inside positioning bolt 14 of positioning screw hole 13.
Lower fixed surface of left bed plate 1 and right bed plate 2 is connected and is adjusted supporting leg 4, adjust supporting leg 4 by install at the screw rod of left bed plate 1 and right bed plate 2 lower surface and with screw rod surface threaded connection's internal thread end section of thick bamboo and constitute, the totality quantity of adjusting supporting leg 4 is four, left side bed plate 1 and right bed plate 2 border department that is close to each other install screw fastening ring 15, and left side bed plate 1 and right bed plate 2 utilize screw fastening ring 15, but bolt and nut relatively fixed.
The upper surface of left bed plate 1 and right bed plate 2 is fixedly connected with left vertical plate 5 that is parallel to each other and the upper surface of right vertical plate 6 left vertical plate 5 respectively and has been seted up and has been accomodate groove 16, the interior diapire fixedly connected with transparent plastic who accomodates groove 16 keeps off and fills up 17, transparent plastic keeps off and fills up 17 and keeps away from the one end fixedly connected with location strip 18 of accomodating groove 16, location round hole 19 has been seted up on the surface of location strip 18, the right flank of left side vertical plate 5 inlays and is equipped with LED light 20, the upper surface mounting of right vertical plate 6 has the internal thread section of thick bamboo 21 of perpendicular placing, the inside threaded connection of internal thread section of thick bamboo 21 has the screw rod diameter to be less than location round hole 19 diameter, the nut diameter is greater than the location screw bolt 22 of location round hole 19 diameter.
The opposite surfaces of the left vertical plate 5 and the right vertical plate 6 are respectively inserted with the same air outlet pipe 7, the lower surface of the air outlet pipe 7 is provided with a plurality of air outlet holes, the joints of the air outlet pipe 7 and the left vertical plate 5 and the right vertical plate 6 are respectively provided with a linear bearing 8, the upper surface of the left base plate 1 is respectively provided with a storage battery 28 and an air inlet fan 29 for providing an air source for the air outlet pipe 7, the storage battery 28 is coupled with the air inlet fan 29, the air inlet end of the air inlet fan 29 is provided with a filter screen, the mesh number of the filter screen is 140 meshes and 160 meshes, and the air outlet end of the air inlet fan 29 is communicated with the air outlet pipe 7 through a connecting pipe 30.
A plurality of atomizer 9 are installed in 6 left sides of right vertical plate, the right side of right vertical plate 6 is installed and is provided the water supply assembly who presses the water source for atomizer 9, water supply assembly is including installing pressurized water tank 23 at 2 upper surfaces of right bed plate, inlet tube 24 is installed on pressurized water tank 23's right side, and inlet tube 24's entrance is provided with sealed lid, the oral siphon of a plurality of atomizer 9 extends to pressurized water tank 23's inside, and the distance is 2 centimetres apart from pressurized water tank 23 inner bottom wall, pressurized water tank 23's side-mounting has a plurality of spliced poles with 10 fixed connection of push rod, pressurized water tank 23's front is inlayed and is equipped with the liquid level display strip, and the material of liquid level display strip is transparent ya keli.
The upper surface of the pressurized water tank 23 is provided with an air cylinder 25 for injecting air into the pressurized water tank 23, an output pipe 26 of the air cylinder 25 is communicated with the inside of the pressurized water tank 23, the surface of the output pipe 26 is provided with a check valve 27, and the check valve 27 is used for limiting the one-way entry of the internal air of the air cylinder 25 into the inside of the pressurized water tank 23.
The invention also provides a dust removal method for the soft rock tunnel surrounding rock dry drilling, which comprises the following steps:
s1, pushing the dust removing equipment to a working place, and detaching bolts and nuts inside the threaded fastening ring 15 after the dust removing equipment reaches the position;
s2, the left base plate 1 and the right base plate 2 are pulled to be separated, then the adjusting support legs 4 are rotated to be in contact with the ground, the auxiliary universal wheels 12 support, and drilling is carried out;
s3, enabling a worker to enter the space between the left vertical plate 5 and the right vertical plate 6 on the base to conduct dry drilling operation;
s4, before work, air is injected into the pressurized water tank 23 through the air cylinder 25, water in the pressurized water tank 23 is driven by air pressure to be sprayed out by the atomizing nozzle 9 to form dust-settling water mist, meanwhile, the power supply of the air inlet fan 29 is switched on to drive external air to enter the air outlet pipe 7 after being filtered by the filter screen, and air is continuously blown through the air outlet hole in the lower surface of the air outlet pipe 7 to prevent a worker from sucking air with dust;
s5, taking out the positioning strip 18 from the inside of the containing groove 16, fixing the positioning strip 18 with the internal thread cylinder 21 and the positioning thread bolt 22 above the right vertical plate 6, and enabling the transparent plastic blocking pad 17 to form a dust blocking protective layer above the head of a worker, so as to prevent dust falling above the tunnel due to vibration, and thus, carry out all-round dust removal and dust blocking.
The working principle is as follows: when the dust removing equipment is used for the dry drilling of the surrounding rock of the soft rock tunnel, firstly, the dust removing equipment is moved and only depends on the universal wheel 12 to contact with the ground for displacement, the left base plate 1 and the right base plate 2 are fixed by the threaded fastening ring 15 and the bolts and the nuts, the dust removing equipment is pushed to a working place, after the dust removing equipment reaches the working place, the bolts and the nuts in the threaded fastening ring 15 are disassembled, the left base plate 1 and the right base plate 2 are pulled to be separated, then the adjusting support leg 4 is rotated to be contacted with the ground, the auxiliary universal wheel 12 supports, when the drilling work is carried out, a worker enters the space between the left vertical plate 5 and the right vertical plate 6 on the base for dry drilling operation, before the work, the air is injected into the pressurized water tank 23 through the air cylinder 25, the water in the pressurized water tank 23 is driven by the air pressure, and is sprayed out by the atomizing nozzle 9, form dust fall water smoke, switch on air inlet fan 29's power simultaneously, drive the inside that outside gas got into outlet duct 7 after the filter screen filters, carry out the air that blows that lasts by the venthole of outlet duct 7 lower surface, prevent that the staff from inhaleing the air that has the dust, in this moment, can also take out location strip 18 from the inside of accomodating groove 16, and make location strip 18 fixed with the internal thread section of thick bamboo 21 and the location screw peg 22 of right vertical plate 6 top, make transparent plastic keep off the ash protection layer that fills up 17 formation one and be located staff's head top, prevent the ash that falls because of vibrations production in the tunnel top, thereby carry out omnidirectional dust removal and keep off the dirt.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a dust collecting equipment for soft rock tunnel country rock dry process drilling, includes the base, its characterized in that: the base is of a separated structure and consists of a left base plate (1) and a right base plate (2), a telescopic column (3) is fixedly connected between the left base plate and the right base plate, a containing groove used for containing the telescopic column (3) is formed in one surface, facing the left base plate (1), of the right base plate (2), adjusting rolling components extending to the lower surfaces of the left base plate (1) and the right base plate (2) are respectively inserted into the upper surfaces of the left base plate (1) and the right base plate (2), adjusting supporting legs (4) are fixedly connected to the lower surfaces of the left base plate (1) and the right base plate (2), a left vertical plate (5) and a right vertical plate (6) which are parallel to each other are respectively fixedly connected to the upper surfaces of the left base plate (1) and the right base plate (2), and the same air outlet pipe (7) is respectively inserted into the opposite surfaces of the left vertical plate (5) and the right vertical plate (6), the lower surface of the air outlet pipe (7) is provided with a plurality of air outlet holes, the joints of the air outlet pipe (7) and the left vertical plate (5) and the right vertical plate (6) are respectively provided with a linear bearing (8), the left side of the right vertical plate (6) is provided with a plurality of atomizing nozzles (9), and the right side of the right vertical plate (6) is provided with a water supply assembly for providing pressurized water sources for the atomizing nozzles (9);
the telescopic column (3) consists of two inner sleeves and an outer sleeve which are mutually inserted, the left end of the outer sleeve is fixedly connected with the right side of the left base plate (1), the right end of the inner sleeve is fixedly connected with the left side of the right base plate (2), a push rod (10) is installed on the right side of the right base plate (2), and a rubber anti-slip sleeve is sleeved at the top end of the push rod (10);
adjust rolling subassembly including seting up the through-hole at left bed plate (1) and right bed plate (2) upper surface, the inside of through-hole is pegged graft and is had regulation post (11), universal wheel (12) are installed to the bottom of adjusting post (11), a plurality of location screw hole (13) have been seted up in the front of adjusting post (11), and the front and the back of left bed plate (1) and right bed plate (2) respectively threaded connection have one to extend to location screw hole (13) inside positioning bolt (14).
2. The dust removal device for the soft rock tunnel surrounding rock dry drilling is characterized in that: adjust supporting leg (4) and constitute by the screw rod of installing at left bed plate (1) and right bed plate (2) lower surface and the internal thread end section of thick bamboo with screw rod surface threaded connection, the total quantity of adjusting supporting leg (4) is four, but left side bed plate (1) and right bed plate (2) border department that is close to each other installs screw fastening ring (15), and left bed plate (1) and right bed plate (2) utilize screw fastening ring (15), bolt and nut relatively fixed.
3. The dust removal device for the soft rock tunnel surrounding rock dry drilling is characterized in that: the upper surface of left side vertical plate (5) has been seted up and has been accomodate groove (16), the interior diapire fixedly connected with transparent plastic who accomodates groove (16) keeps off and fills up (17), transparent plastic keeps off and fills up (17) and keeps away from the one end fixedly connected with location strip (18) of accomodating groove (16), location round hole (19) have been seted up on the surface of location strip (18), the right flank of left side vertical plate (5) inlays and is equipped with LED light (20).
4. The dust removal device for the soft rock tunnel surrounding rock dry drilling is characterized in that: the upper surface mounting of right side vertical plate (6) has a perpendicular internal thread section of thick bamboo (21) of placing, the inside threaded connection of internal thread section of thick bamboo (21) has screw rod diameter to be less than location round hole (19) diameter, nut diameter to be greater than location round hole (19) diameter location screw bolt (22).
5. The dust removal device for the soft rock tunnel surrounding rock dry drilling is characterized in that: the water supply subassembly is including installing pressurized water tank (23) at right bed plate (2) upper surface, inlet tube (24) are installed on the right side of pressurized water tank (23), and the entrance of inlet tube (24) is provided with sealed lid, and is a plurality of the oral siphon of atomizer (9) extends to the inside of pressurized water tank (23), and is apart from 2 centimetres of bottom wall distance in pressurized water tank (23), the side-mounting of pressurized water tank (23) has a plurality of spliced poles with push rod (10) fixed connection, the front of pressurized water tank (23) is inlayed and is equipped with the liquid level display strip, and the material of liquid level display strip is transparent ya keli.
6. The dust removal device for the soft rock tunnel surrounding rock dry drilling is characterized in that: the last surface mounting of booster water tank (23) is inflator (25) for the inside gas injection of booster water tank (23), output tube (26) of inflator (25) and the inside intercommunication of booster water tank (23), the surface of output tube (26) is provided with check valve (27), check valve (27) are used for restricting the inside of the one-way entering booster water tank (23) of inside gas of inflator (25).
7. The dust removal device for the soft rock tunnel surrounding rock dry drilling is characterized in that: the upper surface of the left base plate (1) is respectively provided with a storage battery (28) and an air inlet fan (29) for providing an air source for the air outlet pipe (7), the storage battery (28) is coupled with the air inlet fan (29), the air inlet end of the air inlet fan (29) is provided with a filter screen, the number of meshes of the filter screen is 140-160 meshes, and the air outlet end of the air inlet fan (29) is communicated with the air outlet pipe (7) through a connecting pipe (30).
8. A dust removal method for soft rock tunnel surrounding rock dry drilling is characterized by comprising the following steps: the method comprises the following steps:
s1, pushing the dust removing equipment of any one of claims 1-7 to a working site, and detaching bolts and nuts inside the threaded fastening ring (15) after the dust removing equipment reaches the working site;
s2, the left base plate (1) and the right base plate (2) are pulled to be separated, then the adjusting support legs (4) are rotated to be in contact with the ground, the auxiliary universal wheels (12) support, and drilling is carried out;
s3, enabling a worker to enter the base and perform dry drilling operation in the space between the left vertical plate (5) and the right vertical plate (6);
s4, before work, air is injected into the pressurized water tank (23) through the air cylinder (25), air pressure drives water in the pressurized water tank (23) to be sprayed out by the atomizing nozzle (9) to form dust-settling water mist, meanwhile, a power supply of the air inlet fan (29) is switched on to drive external air to enter the air outlet pipe (7) after being filtered by the filter screen, and air is blown continuously through the air outlet hole in the lower surface of the air outlet pipe (7) to prevent workers from sucking air with dust;
s5, taking out the positioning strip (18) from the inside of the containing groove (16), fixing the positioning strip (18) with the internal thread cylinder (21) and the positioning thread bolt (22) above the right vertical plate (6), and enabling the transparent plastic blocking pad (17) to form a dust blocking protective layer above the head of a worker to prevent dust falling above the tunnel due to vibration, thereby carrying out all-round dust removal and dust blocking.
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| CN202010306307.XA CN111379531B (en) | 2020-04-17 | 2020-04-17 | Dust removal equipment and dust removal method for soft rock tunnel surrounding rock dry drilling |
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| CN202010306307.XA CN111379531B (en) | 2020-04-17 | 2020-04-17 | Dust removal equipment and dust removal method for soft rock tunnel surrounding rock dry drilling |
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| CN111379531B true CN111379531B (en) | 2021-12-03 |
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