CN114700193A - Working surface wetting and dust-settling device for ore construction blasting and implementation method thereof - Google Patents
Working surface wetting and dust-settling device for ore construction blasting and implementation method thereof Download PDFInfo
- Publication number
- CN114700193A CN114700193A CN202210413992.5A CN202210413992A CN114700193A CN 114700193 A CN114700193 A CN 114700193A CN 202210413992 A CN202210413992 A CN 202210413992A CN 114700193 A CN114700193 A CN 114700193A
- Authority
- CN
- China
- Prior art keywords
- plate
- dust
- working face
- drives
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005422 blasting Methods 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 238000009736 wetting Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims description 40
- 239000000428 dust Substances 0.000 claims description 26
- 238000005192 partition Methods 0.000 claims description 12
- 238000001556 precipitation Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 244000309464 bull Species 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 10
- 238000005507 spraying Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/14—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with oscillating elements; with intermittent operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/18—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with elements moving in a straight line, e.g. along a track; Mobile sprinklers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The invention discloses a working face wetting and dust-settling device for ore construction blasting, and also discloses an implementation method of the working face wetting and dust-settling device for ore construction blasting, which comprises a supporting mechanism and a dust-settling mechanism, wherein a supporting plate is arranged at one side of a fixed bent plate, which is far away from a vertical side plate, when the supporting plate at one side of the fixed bent plate tilts and falls on a bottom plate, one side of the supporting plate, which is far away from the fixed bent plate, is in contact with the ground for supporting, so that the whole device is prevented from turning over, when water is sprayed out from a spherical nozzle through a water pipe, a motor drives a semicircular gear to rotate through a belt strip, so that the semicircular gear is meshed with a toothed plate, the toothed plate drives the spherical nozzle to move towards the lower end of an inner cavity of a fixed sleeve plate, after the semicircular gear is separated from the toothed plate, the toothed plate is rebounded upwards by an elastic part, and simultaneously the toothed plate drives the spherical nozzle to move upwards through an installation frame, the spherical spray head can intermittently swing up and down to increase the spray area of water.
Description
Technical Field
The invention relates to the technical field of ore construction, in particular to a working face wetting and dust-settling device for ore construction blasting and an implementation method thereof.
Background
Blasting is a technology which utilizes the compression, loosening, destruction, throwing and killing effects generated by the explosion of explosives in air, water, earth and stone media or objects to achieve the expected purpose. The dust generated by blasting operation in mine construction has high concentration, fine dust particles and extremely low natural settling velocity, and is not beneficial to shortening the operation cycle time. Dust floating in the air can cause air pollution and harm the health of workers. Before the mine blasting, the blasting surface is wetted, so that the blasting working surface is sufficiently wetted, the dust amount generated in the blasting process can be effectively reduced, and the dust hazard is reduced.
Among the prior art, the staff often directly adopts equipment such as dust removal fog gun to carry out the water smoke to the working surface who treats the blasting and sprays, thereby moist working surface, reach the effect that the dust produced when reducing the blasting, however if the device turns on one's side or the slope produces when using, will exert an influence when the moist dust fall operation of device, and many water smoke when spraying, be difficult to even injection at working surface, if unable upper and lower or horizontal hunting increase spray area or spray the wide angle, will cause local working surface wetness degree not enough, thereby produce more dust in the blasting.
Therefore, the working surface wetting and dust falling device for ore construction blasting and the implementation method thereof are provided.
Disclosure of Invention
The invention aims to provide a working face wetting dust-settling device for ore construction blasting and an implementation method thereof, when a bottom plate of a supporting plate at one side of a fixed bent plate inclines and falls, one side of the supporting plate, which is far away from the fixed bent plate, is contacted with the ground for supporting, and an included angle formed between the supporting plate and the fixed bent plate is in an unequal triangular shape, so that the supporting strength of the supporting plate can be enhanced, the whole device is prevented from side turning, when water is sprayed out from a spherical nozzle through a water pipe, a motor drives a semicircular gear to rotate through a belt strip, the semicircular gear is meshed with a toothed plate, the toothed plate drives the spherical nozzle to move towards the lower end of an inner cavity of a fixed sleeve plate, after the semicircular gear is separated from the toothed plate, the toothed plate is rebounded upwards by an elastic part, and simultaneously drives the spherical nozzle to move upwards through an installation frame, so that the spherical nozzle can intermittently swing upwards and downwards to increase the spraying area of the water, thereby solving the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme: a working face wetting dust-settling device for ore construction blasting comprises a supporting mechanism and a dust-settling mechanism, wherein the dust-settling mechanism is installed at the upper end of the supporting mechanism, the supporting mechanism comprises a bottom plate, a push plate, moving wheels, limiting grooves and protection components, the push plate is installed at the upper end of one side of the bottom plate, the moving wheels are installed at four corners of the bottom end of the bottom plate, the limiting grooves are formed in one side of the upper end of the bottom plate, and the protection components are installed on two sides of the bottom plate;
dust fall mechanism includes the storage water tank, spacing fixture block, including a motor, an end cap, a controller, and a cover plate, the belt pulley, the booster pump, the raceway, drive assembly, lifting unit and precipitation subassembly, the storage water tank is installed to upper end one side of bottom plate, spacing fixture block is installed to the bottom of storage water tank, and spacing fixture block and spacing groove swing joint, the motor is installed to the upper end of storage water tank, the belt pulley is installed to the output of motor, the booster pump is installed to one side that the push pedal was kept away from to the storage water tank, the upper end of booster pump is provided with the raceway, drive assembly is installed to one side of storage water tank, and drive assembly is located the upper end of booster pump, lifting unit is installed to one side that the storage water tank was kept away from to the booster pump, precipitation subassembly is installed to lifting unit's upper end, and reduction subassembly and drive assembly swing joint.
Further, the protection assembly comprises a vertical side plate, a buffer spring, a fixed bent plate, a supporting plate and a cylinder, the vertical side plate is installed on two sides of the bottom plate, the buffer spring is installed on one side of the upper end of the vertical side plate and movably connected with the outer wall of the water storage tank, the fixed bent plate is installed at the lower end of one side, away from the buffer spring, of the vertical side plate, the supporting plate is installed on one side, away from the vertical side plate, of the fixed bent plate, and the cylinder is installed at the bottom end of the vertical side plate and the bottom end of the fixed bent plate.
Furthermore, the supporting plate is fixedly connected with the outer wall of the fixed bent plate, and an included angle formed between the supporting plate and the fixed bent plate is in a scalene triangle shape.
Furthermore, the cylinder comprises a seal partition plate, a balancing weight, a gravel layer and a hollow cavity, the seal partition plate is installed in the middle of the inner cavity of the cylinder, the balancing weight is installed at the bottom end of the inner cavity of the cylinder, the gravel layer is arranged at the upper end of the balancing weight, the gravel layer and the balancing weight are located at the lower end of the seal partition plate, and the hollow cavity is formed in the upper end of the inner cavity of the seal partition plate and the upper end of the inner cavity of the cylinder.
Further, the transmission assembly comprises an L-shaped vertical plate and a through groove; activity groove and kerve, L type riser is installed to outer wall one side of storage water tank, and logical groove has been seted up to a side surface of L type riser, and L type riser keeps away from one side upper end that leads to the groove and has seted up the activity groove, has seted up the kerve in the middle of the bottom in activity groove.
Furthermore, the movable groove comprises a semicircular gear, a connecting shaft and a poking plate, the semicircular gear is installed in the middle of the movable groove, the connecting shafts are installed on two sides of the semicircular gear and are movably connected with the belt pulley through belt strips, and the poking plate is installed on the outer wall of one side of the semicircular gear.
Further, the lifting assembly comprises a fixed sleeve plate, a slot, an elastic part, a piston plate and a toothed plate, one side of the booster pump far away from the water storage tank is provided with the fixed sleeve plate, the bottom end of the fixed sleeve plate is fixedly connected with the upper end of the bottom plate, the slot is formed in the upper end of the fixed sleeve plate, the elastic part is installed at the bottom end of the inner cavity of the fixed sleeve plate, the piston plate is installed at the upper end of the elastic part, the toothed plate is installed at one end, far away from the elastic part, of the piston plate, the toothed plate penetrates through the fixed sleeve plate through the slot, and the toothed plate is meshed with the semicircular gear.
Further, the precipitation subassembly includes mounting bracket, flow equalizing pipe, ball shower nozzle and bull stick, and the mounting bracket is installed on one side top that fixed lagging was kept away from to the pinion rack, and flow equalizing pipe is installed to the inboard of mounting bracket, and ball shower nozzle is installed to one side of flow equalizing pipe, and the bull stick is installed with the both sides of mounting bracket to flow equalizing pipe.
Further, the bull stick includes the carousel, the pivot, fix a position the horizontal pole and aggravate the weight, the carousel is installed to one side that the mounting bracket was kept away from to the bull stick, the pivot is kept away from one side of carousel and is installed the pivot, and the pivot is located one side of mounting bracket, the pipe that flow equalizes through pivot and bull stick swing joint, one side outer wall welding that the bull stick was kept away from to the carousel has the location horizontal pole, and fix a position horizontal pole and dial board swing joint, the bottom of carousel is installed and is aggravated the weight, and aggravate the bottom fixed connection of weight and carousel.
The invention provides another technical scheme that: an implementation method of a working surface wetting and dust-settling device for ore construction blasting comprises the following steps:
s1: the cylinder is of a structure with heavy bottom and light top, and an included angle formed between the supporting plate and the fixed bent plate is in an inequilateral triangular shape, so that the supporting strength of the supporting plate can be enhanced;
s2: when water is sprayed out from the water delivery pipe and the spherical spray head, the motor drives the semi-circular gear to rotate through the belt strip, so that the semi-circular gear is meshed with the toothed plate, and the toothed plate drives the spherical spray head to move towards the lower end of the inner cavity of the fixed sleeve plate;
s3: when the semi-circular gear is separated from the toothed plate, the toothed plate is rebounded upwards by the elastic piece, and meanwhile, the toothed plate drives the spherical spray head to move upwards through the mounting frame;
s4: when the poking plate rotates along with the semicircular gear to be in contact with the positioning cross rod, the rotating rod drives the flow equalizing pipe to rotate upwards through the rotating shaft, so that the flow equalizing pipe drives the spherical spray head to incline upwards and lift up;
s5: when the stirring plate rotates to separate from the positioning cross rod, the set weighting weight drives the rotating rod to rotate through the turntable to restore to the initial position, and meanwhile, the rotating rod also drives the flow equalizing pipe to rotate downwards through the rotating shaft, so that the spherical nozzle restores to the initial position.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a working face wetting dust-settling device for ore construction blasting and an implementation method thereof, wherein vertical side plates at two sides of a bottom plate can protect a water storage tank, when the water storage tank inclines to one side, the water storage tank is firstly protected by buffering through extrusion of a buffer spring, then the vertical side plates incline to one side far away from the water storage tank, when the vertical side plates incline, the bottom end of a cylinder is contacted with the ground, the lower end of the inner cavity of the cylinder is provided with a balancing weight and a sandstone layer, so that the bottom of the inner cavity of the cylinder is conveniently weighted, the upper end of the inner cavity of the cylinder is provided with a hollow cavity, so that the cylinder forms a structure with lower weight and upper light weight, the bottom plate and the water storage tank are not easy to turn over according to the tumbler principle, and simultaneously, when a support plate at one side of a fixed bent plate inclines, one side of the support plate far away from the fixed bent plate is contacted with the ground for supporting, and the included angle that forms between backup pad and the fixed bent plate is inequilateral triangle-shaped form, can strengthen the support intensity of backup pad, prevents that the whole emergence of device from turning on one's side.
2. The invention provides a working face wetting dust-settling device for ore construction blasting and an implementation method thereof, when water is sprayed out through a water conveying pipe and a spherical nozzle, a motor drives a connecting shaft to rotate through a belt pulley and a belt strip, a semi-circular gear is installed on the inner side of a movable groove at the upper end of an L-shaped vertical plate, when the connecting shaft rotates, the semi-circular gear synchronously rotates along with the connecting shaft, when the semi-circular gear rotates, the semi-circular gear is meshed with a toothed plate, so that the toothed plate is driven to move towards the inner side of a fixed sleeve plate, when the toothed plate moves towards the inner side of the fixed sleeve plate, the toothed plate extrudes an elastic part through a piston plate to deform the elastic part, meanwhile, the toothed plate drives the spherical nozzle to move downwards through an installation frame, when the semi-circular gear is separated from the toothed plate, the toothed plate is rebounded upwards by the elastic part, and simultaneously, the toothed plate drives the spherical nozzle to move upwards through the installation frame, the spherical spray head can intermittently swing up and down to increase the spray area of water.
3. The invention provides a working face wetting dust-settling device for ore construction blasting and an implementation method thereof, when a semicircular gear rotates, a poking plate also synchronously rotates along with the semicircular gear, when the poking plate is contacted with a positioning cross rod, the poking plate pushes the positioning cross rod to move upwards, when the positioning cross rod moves upwards, the positioning cross rod drives a rotating rod to rotate upwards through a turntable, when the rotating rod rotates upwards, the rotating rod drives a flow equalizing pipe to rotate upwards through a rotating shaft, so that the flow equalizing pipe drives a spherical nozzle to incline upwards and lift up, when the poking plate rotates to separate from the positioning cross rod, as a weighted weight is arranged at the bottom end of the turntable, according to the principle of gravity inertia, the turntable drives the rotating rod and the positioning cross rod to rotate back to an initial position, and simultaneously the rotating rod drives the flow equalizing pipe to rotate downwards through the rotating shaft, so that the spherical nozzle returns to the initial position, thereby enabling the spherical nozzle to swing upwards and downwards to enlarge a wide spraying angle, the wetting dust-settling effect of the working surface is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of the supporting mechanism of the present invention;
FIG. 3 is a schematic structural diagram of a dust-settling mechanism of the present invention;
FIG. 4 is a schematic structural view of a shield assembly of the present invention;
FIG. 5 is a side view of the interior of the cylinder of the present invention;
FIG. 6 is a schematic view of the transmission assembly of the present invention;
figure 7 is a side cross-sectional view of the fixed race plate and toothed plate interior of the present invention;
FIG. 8 is a schematic view of the structure of the mounting bracket of the present invention;
fig. 9 is a schematic view of the structure of the rotating rod of the present invention.
In the figure: 1. a support mechanism; 11. a base plate; 12. pushing the plate; 13. a moving wheel; 14. a limiting groove; 15. a guard assembly; 151. a vertical side plate; 152. a buffer spring; 153. fixing the bent plate; 154. a support plate; 155. a cylinder; 1551. sealing the partition plate; 1552. a balancing weight; 1553. a sandstone layer; 1554. a hollow cavity; 2. a dust falling mechanism; 21. a water storage tank; 22. a limiting clamping block; 23. a motor; 24. a belt pulley; 25. a booster pump; 26. a water delivery pipe; 27. a transmission assembly; 271. an L-shaped vertical plate; 272. a through groove; 273. a movable groove; 2731. a semi-circular gear; 2732. a connecting shaft; 2733. a poking plate; 274. a bottom groove; 28. a lifting assembly; 281. fixing the sleeve plate; 282. a slot; 283. an elastic member; 284. a piston plate; 285. a toothed plate; 29. a precipitation assembly; 291. a mounting frame; 292. a flow equalizing pipe; 293. a spherical nozzle; 294. a rotating rod; 2941. a turntable; 2942. a rotating shaft; 2943. positioning the cross bar; 2944. the weight is weighted.
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. 1-3, a working surface wetting and dust-settling device for ore construction blasting comprises a supporting mechanism 1 and a dust-settling mechanism 2, wherein the dust-settling mechanism 2 is installed at the upper end of the supporting mechanism 1, the supporting mechanism 1 comprises a bottom plate 11, a push plate 12, moving wheels 13, a limiting groove 14 and a protection assembly 15, the push plate 12 is installed at the upper end of one side of the bottom plate 11, the moving wheels 13 are installed at four corners of the bottom end of the bottom plate 11, the limiting groove 14 is formed in one side of the upper end of the bottom plate 11, the protection assembly 15 is installed on two sides of the bottom plate 11, the dust-settling mechanism 2 comprises a water storage tank 21, a limiting clamping block 22, a motor 23, a belt pulley 24, a booster pump 25, a water pipe 26, a transmission assembly 27, a lifting assembly 28 and a precipitation assembly 29, the water storage tank 21 is installed on one side of the upper end of the bottom plate 11, the limiting clamping block 22 is installed at the bottom end of the water storage tank 21, the limiting clamping block 22 is movably connected with the limiting groove 14, the motor 23 is installed at the upper end of the water storage tank 21, belt pulley 24 is installed to the output of motor 23, and booster pump 25 is installed to the one side that push pedal 12 was kept away from to storage water tank 21, and the upper end of booster pump 25 is provided with raceway 26, and drive assembly 27 is installed to one side of storage water tank 21, and drive assembly 27 is located the upper end of booster pump 25, and lifting unit 28 is installed to the one side that storage water tank 21 was kept away from to booster pump 25, and precipitation subassembly 29 is installed to lifting unit 28's upper end, and precipitation subassembly 29 and drive assembly 27 swing joint.
Referring to fig. 4-5, a working surface wetting and dust-settling device for ore construction blasting, the protection assembly 15 includes a vertical side plate 151, a buffer spring 152, a fixed bent plate 153, a support plate 154 and a cylinder 155, the vertical side plate 151 is installed on two sides of a bottom plate 11, the buffer spring 152 is installed on one side of the upper end of the vertical side plate 151, the buffer spring 152 is movably connected with the outer wall of a water storage tank 21, the fixed bent plate 153 is installed on the lower end of one side of the vertical side plate 151 away from the buffer spring 152, the support plate 154 is installed on one side of the fixed bent plate 153 away from the vertical side plate 151, the cylinder 155 is installed at the bottom ends of the vertical side plate 151 and the fixed bent plate 153, the support plate 154 is fixedly connected with the outer wall of the fixed bent plate 153, an included angle formed between the support plate 154 and the fixed bent plate 153 is in an unequal triangular shape, the cylinder 155 includes a sealing division plate 1551, a counterweight 1552, a sand layer 3 and a middle hollow 1554, a sealing partition plate 1551 is arranged in the middle of the inner cavity of the cylinder 155, a balancing weight 1552 is arranged at the bottom end of the inner cavity of the cylinder 155, a sandstone layer 1553 is arranged at the upper end of the balancing weight 1552, the sandstone layer 1553 and the balancing weight 1552 are positioned at the lower end of the sealing partition plate 1551, and a hollow cavity 1554 is formed at the upper ends of the inner cavities of the sealing partition plate 1551 and the cylinder 155.
Referring to fig. 6-7, a working surface wetting and dust-settling device for ore construction blasting, a transmission assembly 27 includes an L-shaped vertical plate 271 and a through groove 272; the lifting assembly 28 comprises a fixed sleeve plate 281, slots 282, an elastic part 283, a piston plate 284 and a toothed plate 285, a fixed sleeve plate 281 is installed on one side of the booster pump 25 far away from the water storage tank 21, the bottom end of the fixed sleeve plate 281 is fixedly connected with the upper end of the bottom plate 11, slots 282 are formed in the upper end of the fixed sleeve plate 281, an elastic piece 283 is installed at the bottom end of the inner cavity of the fixed sleeve plate 281, a piston plate 284 is installed at the upper end of the elastic piece 283, a toothed plate 285 is installed at one end, far away from the elastic piece 283, of the piston plate 284, the toothed plate 285 runs through the fixed sleeve plate 281 through a slot 282, and the toothed plate 285 is meshed with the semicircular gear 2731 and is connected with the same.
Referring to fig. 8-9, a working surface wetting and dust-settling device for ore construction blasting, wherein a precipitation component 29 comprises an installation frame 291, a flow equalizing pipe 292, a spherical spray head 293 and a rotating rod 294, the installation frame 291 is installed at the top end of one side of a toothed plate 285 far away from a fixed sleeve plate 281, the flow equalizing pipe 292 is installed at the inner side of the installation frame 291, the spherical spray head 293 is installed at one side of the flow equalizing pipe 292, the rotating rod 294 is installed at two sides of the flow equalizing pipe 292 and the installation frame 291, the rotating rod 294 comprises a rotating disc 2941, a rotating shaft 2942, a positioning cross rod 2943 and a weighted weight 2944, the rotating disc 2941 is installed at one side of the rotating rod 294 far away from the installation frame 291, the rotating shaft 2942 is installed at one side of the rotating rod 294 far away from the rotating disc 2941, the rotating shaft 2942 is located at one side of the installation frame 291, the flow equalizing pipe 292 is movably connected with the rotating rod 294 through the rotating shaft 2942, the positioning cross rod 2943 is welded at the outer wall of one side of the rotating disc 2941 far away from the rotating rod 294, and the positioning cross rod 2943 is movably connected with a shifting plate 2733, the bottom end of the turntable 2941 is provided with a weighted weight 2944, and the weighted weight 2944 is fixedly connected with the bottom end of the turntable 2941.
In order to better show a working face wetting and dust-settling device for ore construction blasting, the embodiment provides an implementation method of the working face wetting and dust-settling device for ore construction blasting, which includes the following steps:
the method comprises the following steps: the cylinder 155 is a structure with heavy bottom and light top, and an included angle formed between the support plate 154 and the fixed bent plate 153 is in a scalene triangle shape, so that the support strength of the support plate 154 can be enhanced;
step two: when water is sprayed out from the water delivery pipe 26 and the spherical spray nozzle 293, the motor 23 drives the semi-circular gear 2731 to rotate through the belt strip, so that the semi-circular gear 2731 is meshed with the toothed plate 285, and the toothed plate 285 drives the spherical spray nozzle 293 to move towards the lower end of the inner cavity of the fixed sleeve plate 281;
step three: after the semi-circular gear 2731 is disengaged from the toothed plate 285, the toothed plate 285 will be rebounded upwards by the elastic member 283, and meanwhile, the toothed plate 285 will drive the spherical spray head 293 to move upwards through the mounting rack 291;
step four: when the toggle plate 2733 rotates along with the semicircular gear 2731 to contact with the positioning cross bar 2943, the rotating rod 294 drives the flow equalizing pipe 292 to rotate upwards through the rotating shaft 2942, so that the flow equalizing pipe 292 drives the spherical spray head 293 to tilt upwards and lift up;
step five: when the toggle plate 2733 rotates away from the positioning cross bar 2943, the weight 2944 is set to drive the rotating rod 294 to rotate back to the initial position through the rotating disc 2941, and at the same time, the rotating rod 294 also drives the flow equalizing pipe 292 to rotate downward through the rotating shaft 2942, so that the spherical nozzle 293 returns to the initial position.
In conclusion: the invention provides a working face wetting dust-settling device for ore construction blasting and an implementation method thereof, wherein vertical side plates 151 on two sides of a bottom plate 11 can protect a water storage tank 21, when the water storage tank 21 inclines to one side, the water storage tank 21 is firstly protected by buffering through extrusion of a buffer spring 152, then the vertical side plates 151 incline to one side far away from the water storage tank 21, when the vertical side plates 151 incline, the bottom end of a cylinder 155 is contacted with the ground, the lower end of the inner cavity of the cylinder 155 is provided with a balancing weight 1552 and a sandstone layer 1553, so that the weight is conveniently applied to the bottom of the inner cavity of the cylinder 155, the upper end of the inner cavity of the cylinder 155 is provided with a hollow cavity 1554, the cylinder 155 forms a structure with lower weight and upper light weight, the bottom plate 11 and the water storage tank 21 are not easy to turn over according to the tumbler principle, and meanwhile, when a support plate 154 on one side of a fixed bent plate 153 inclines to the bottom plate 11, one side of the supporting plate 154, which is far away from the fixed curved plate 153, contacts the ground to support, and an included angle formed between the supporting plate 154 and the fixed curved plate 153 is in a scalene triangle shape, which can enhance the supporting strength of the supporting plate 154 and prevent the device from turning over, when water is sprayed out through the water pipe 26 and the spherical spray head 293, the motor 23 drives the connecting shaft 2732 to rotate through the belt pulley 24 and the belt strip, the semicircular gear 2731 is installed inside the movable groove 273 at the upper end of the L-shaped vertical plate 271, when the connecting shaft 2732 rotates, the semicircular gear 2731 will also synchronously rotate along with the connecting shaft 2732, when the semicircular gear 2731 rotates, the semicircular gear 2731 will be engaged with the toothed plate 285, thereby driving the toothed plate 285 to move towards the inner side of the fixed sleeve 281, when the toothed plate 285 moves towards the inner side of the fixed sleeve 281, the toothed plate 285 will press the elastic member 283 by the piston plate 284 to deform, and at the same time the toothed plate 285 will drive the spherical spray head 293 to move downwards through the mounting rack 291, after the semi-circular gear 2731 is separated from the toothed plate 285, the toothed plate 285 is rebounded upwards by the elastic member 283, and simultaneously the toothed plate 285 drives the spherical sprayer 293 to move upwards through the mounting frame 291, so that the spherical sprayer 293 can intermittently swing up and down to increase the spraying area of water, when the semi-circular gear 2731 rotates, the toggle plate 2733 will synchronously rotate along with the semi-circular gear, when the toggle plate 2733 contacts with the positioning cross bar 2943, the toggle plate 2733 will push the positioning cross bar 2943 to move upwards, when the positioning cross bar 2943 moves upwards, the positioning cross bar 2943 will drive the rotating rod 294 to rotate upwards through the turntable 2941, when the rotating rod 294 rotates upwards, the rotating rod 294 will drive the uniform flow tube 292 to rotate upwards through the rotating shaft 2942, so that the uniform flow tube 292 drives the spherical sprayer 293 to tilt upwards and lift up, when the toggle plate 2733 rotates to be separated from the positioning cross bar 2943, because the bottom end of the turntable 2941 is provided with the weighted weight 2944, according to the principle of inertia gravity, the rotary table 2941 drives the rotary rod 294 and the positioning cross rod 2943 to rotate and return to the initial position, and meanwhile, the rotary rod 294 drives the flow equalizing pipe 292 to rotate downwards through the rotary shaft 2942, so that the spherical sprayer 293 returns to the initial position, the spherical sprayer 293 can swing up and down to expand the wide spraying angle, and the wetting and dust settling effect of the working surface is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (10)
1. The utility model provides an ore construction is moist dust device of working face for blasting, includes supporting mechanism (1) and dust fall mechanism (2), and the upper end at supporting mechanism (1), its characterized in that are installed in dust fall mechanism (2): the supporting mechanism (1) comprises a bottom plate (11), a push plate (12), moving wheels (13), limiting grooves (14) and protective components (15), wherein the push plate (12) is installed at the upper end of one side of the bottom plate (11), the moving wheels (13) are installed at four corners of the bottom end of the bottom plate (11), the limiting grooves (14) are formed in one side of the upper end of the bottom plate (11), and the protective components (15) are installed on two sides of the bottom plate (11);
the dust fall mechanism (2) comprises a water storage tank (21), a limiting clamping block (22), a motor (23), a belt pulley (24), a booster pump (25), a water conveying pipe (26), a transmission component (27), a lifting component (28) and a precipitation component (29), wherein the water storage tank (21) is installed on one side of the upper end of a base plate (11), the limiting clamping block (22) is installed at the bottom end of the water storage tank (21), the limiting clamping block (22) is movably connected with a limiting groove (14), the motor (23) is installed at the upper end of the water storage tank (21), the belt pulley (24) is installed at the output end of the motor (23), the booster pump (25) is installed on one side, away from a push plate (12), of the water storage tank (21), the water conveying pipe (26) is arranged at the upper end of the booster pump (25), the transmission component (27) is installed on one side of the water storage tank (21), and the transmission component (27) is located at the upper end of the booster pump (25), one side of the booster pump (25) far away from the water storage tank (21) is provided with a lifting component (28), the upper end of the lifting component (28) is provided with a precipitation component (29), and the precipitation component (29) is movably connected with the transmission component (27).
2. The working face wetting and dust falling device for ore construction blasting according to claim 1, characterized in that: protection component (15) are including vertical curb plate (151), buffer spring (152), fixed bent plate (153), backup pad (154) and drum (155), vertical curb plate (151) are installed to the both sides of bottom plate (11), buffer spring (152) are installed to upper end one side of vertical curb plate (151), and buffer spring (152) and the outer wall swing joint of storage water tank (21), one side lower extreme that buffer spring (152) were kept away from in vertical curb plate (151) is installed fixed bent plate (153), backup pad (154) are installed to one side that vertical curb plate (151) were kept away from in fixed bent plate (153), drum (155) are installed to the bottom of vertical curb plate (151) and fixed bent plate (153).
3. The working face wetting and dust falling device for ore construction blasting according to claim 2, characterized in that: the supporting plate (154) is fixedly connected with the outer wall of the fixed bent plate (153), and an included angle formed between the supporting plate (154) and the fixed bent plate (153) is in a scalene triangle shape.
4. The working face wetting and dust falling device for ore construction blasting according to claim 2, characterized in that: the cylinder (155) comprises a sealing partition plate (1551), a balancing weight (1552), a sand layer (1553) and a middle cavity (1554), the sealing partition plate (1551) is installed in the middle of the inner cavity of the cylinder (155), the balancing weight (1552) is installed at the bottom end of the inner cavity of the cylinder (155), the upper end of the balancing weight (1552) is provided with a sand layer (1553), the sand layer (1553) and the balancing weight (1552) are located at the lower end of the sealing partition plate (1551), and the middle cavity (1554) is formed in the upper end of the inner cavity of the sealing partition plate (1551) and the upper end of the inner cavity of the cylinder (155).
5. The working face wetting and dust falling device for ore construction blasting according to claim 1, characterized in that: the transmission assembly (27) comprises an L-shaped vertical plate (271) and a through groove (272); activity groove (273) and kerve (274), L type riser (271) are installed to outer wall one side of storage water tank (21), and logical groove (272) have been seted up to a side surface of L type riser (271), and activity groove (273) have been seted up to one side upper end that logical groove (272) were kept away from in L type riser (271), and kerve (274) have been seted up in the middle of the bottom in activity groove (273).
6. The working face wetting and dust falling device for ore construction blasting according to claim 5, wherein: activity groove (273) include semi-circular gear (2731), connecting axle (2732) and dial plate (2733), and semi-circular gear (2731) are installed to the centre of activity groove (273), and connecting axle (2732) are installed to the both sides of semi-circular gear (2731), and connecting axle (2732) pass through belt strip and belt pulley (24) swing joint, and one side outer wall of semi-circular gear (2731) is installed and is dialled plate (2733).
7. The working face wetting and dust falling device for ore construction blasting according to claim 1, characterized in that: lifting unit (28) are including fixed lagging (281), slot (282), elastic component (283), piston plate (284) and pinion rack (285), booster pump (25) are kept away from one side of storage water tank (21) and are installed fixed lagging (281), and the bottom of fixed lagging (281) and the upper end fixed connection of bottom plate (11), slot (282) have been seted up to the upper end of fixed lagging (281), elastic component (283) are installed to the inner chamber bottom of fixed lagging (281), piston plate (284) are installed to the upper end of elastic component (283), pinion rack (285) are installed to the one end that elastic component (283) were kept away from in piston plate (284), pinion rack (285) run through fixed lagging (281) through slot (282), and pinion rack (285) are connected with semicircular gear (2731) meshing.
8. The working face wetting and dust falling device for ore construction blasting according to claim 1, characterized in that: precipitation subassembly (29) include mounting bracket (291), flow equalize pipe (292), ball shower nozzle (293) and bull stick (294), mounting bracket (291) are installed on one side top of fixed lagging (281) is kept away from in pinion rack (285), flow equalize pipe (292) is installed to the inboard of mounting bracket (291), ball shower nozzle (293) is installed to one side of flow equalize pipe (292), bull stick (294) are installed with the both sides of mounting bracket (291) to flow equalize pipe (292).
9. The working face wetting and dust falling device for ore construction blasting according to claim 8, wherein: the rotating rod (294) comprises a rotating disk (2941), a rotating shaft (2942), a positioning cross rod (2943) and a weighting weight (2944), the rotating disk (2941) is installed on one side of the rotating rod (294) far away from the mounting rack (291), the rotating shaft (2942) is installed on one side of the rotating rod (294) far away from the rotating disk (2941), the rotating shaft (2942) is located on one side of the mounting rack (291), the flow equalizing pipe (292) is movably connected with the rotating rod (294) through the rotating shaft (2942), the positioning cross rod (2943) is welded on the outer wall of one side of the rotating rod (294) far away from the rotating disk (2941), the positioning cross rod (2943) is movably connected with the shifting plate (2733), the weighting weight (2944) is installed at the bottom end of the rotating disk (2941), and the weighting weight (2944) is fixedly connected with the bottom end of the rotating disk (2941).
10. A method of implementing a working face wetting dust fall apparatus for ore construction blasting according to any one of claims 1 to 9, comprising the steps of:
s1: the cylinder (155) is of a structure with heavy bottom and light top, and an included angle formed between the support plate (154) and the fixed bent plate (153) is in a scalene triangle shape, so that the support strength of the support plate (154) can be enhanced;
s2: when water is sprayed out from the water delivery pipe (26) and the spherical spray head (293), the motor (23) drives the semicircular gear (2731) to rotate through the belt strip, so that the semicircular gear (2731) is meshed with the toothed plate (285), and the toothed plate (285) drives the spherical spray head (293) to move towards the lower end of the inner cavity of the fixed sleeve plate (281);
s3: when the semi-circular gear (2731) is separated from the toothed plate (285), the toothed plate (285) is rebounded upwards by the elastic piece (283), and meanwhile, the toothed plate (285) drives the spherical sprayer (293) to move upwards through the mounting frame (291);
s4: when the poking plate (2733) rotates along with the semicircular gear (2731) to be in contact with the positioning cross rod (2943), the rotating rod (294) drives the flow equalizing pipe (292) to rotate upwards through the rotating shaft (2942), so that the flow equalizing pipe (292) drives the spherical spray head (293) to incline upwards and lift up;
s5: when the poking plate (2733) rotates to be separated from the positioning cross rod (2943), the arranged weighted weight (2944) drives the rotating rod (294) to rotate through the rotating disk (2941) and restore to the initial position, and meanwhile, the rotating rod (294) drives the flow equalizing pipe (292) to rotate downwards through the rotating shaft (2942), so that the spherical spray head (293) restores to the initial position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210413992.5A CN114700193A (en) | 2022-04-17 | 2022-04-17 | Working surface wetting and dust-settling device for ore construction blasting and implementation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210413992.5A CN114700193A (en) | 2022-04-17 | 2022-04-17 | Working surface wetting and dust-settling device for ore construction blasting and implementation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114700193A true CN114700193A (en) | 2022-07-05 |
Family
ID=82173966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210413992.5A Pending CN114700193A (en) | 2022-04-17 | 2022-04-17 | Working surface wetting and dust-settling device for ore construction blasting and implementation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114700193A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116651667A (en) * | 2023-07-31 | 2023-08-29 | 山东良工机械股份有限公司 | Spraying device for automobile parts |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150151311A1 (en) * | 2013-12-03 | 2015-06-04 | Samsung Electronics Co., Ltd. | Spin coating apparatus and spin coating method |
CN109023809A (en) * | 2018-08-17 | 2018-12-18 | 佛山舒宜添科技有限公司 | A kind of energy-saving textile sanding flusher |
CN112690265A (en) * | 2020-12-24 | 2021-04-23 | 吉林农业大学 | Timed pesticide spraying device and method for pest control |
CN213205736U (en) * | 2020-09-27 | 2021-05-14 | 四川省地质工程集团有限责任公司 | Tunnel construction is with watering dust fall equipment |
CN213450474U (en) * | 2020-10-25 | 2021-06-15 | 孙品超 | Colliery is combination dust device in pit |
CN213719559U (en) * | 2020-11-23 | 2021-07-20 | 李燕 | Movable multipurpose agricultural spraying device |
CN113442079A (en) * | 2021-08-30 | 2021-09-28 | 南通鑫祥锌业有限公司 | Multidirectional fixing device for plate processing and implementation method thereof |
CN215513778U (en) * | 2021-04-07 | 2022-01-14 | 安徽千山物流有限公司 | Short-distance anti-toppling carrying device suitable for logistics storage |
-
2022
- 2022-04-17 CN CN202210413992.5A patent/CN114700193A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150151311A1 (en) * | 2013-12-03 | 2015-06-04 | Samsung Electronics Co., Ltd. | Spin coating apparatus and spin coating method |
CN109023809A (en) * | 2018-08-17 | 2018-12-18 | 佛山舒宜添科技有限公司 | A kind of energy-saving textile sanding flusher |
CN213205736U (en) * | 2020-09-27 | 2021-05-14 | 四川省地质工程集团有限责任公司 | Tunnel construction is with watering dust fall equipment |
CN213450474U (en) * | 2020-10-25 | 2021-06-15 | 孙品超 | Colliery is combination dust device in pit |
CN213719559U (en) * | 2020-11-23 | 2021-07-20 | 李燕 | Movable multipurpose agricultural spraying device |
CN112690265A (en) * | 2020-12-24 | 2021-04-23 | 吉林农业大学 | Timed pesticide spraying device and method for pest control |
CN215513778U (en) * | 2021-04-07 | 2022-01-14 | 安徽千山物流有限公司 | Short-distance anti-toppling carrying device suitable for logistics storage |
CN113442079A (en) * | 2021-08-30 | 2021-09-28 | 南通鑫祥锌业有限公司 | Multidirectional fixing device for plate processing and implementation method thereof |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116651667A (en) * | 2023-07-31 | 2023-08-29 | 山东良工机械股份有限公司 | Spraying device for automobile parts |
CN116651667B (en) * | 2023-07-31 | 2023-09-29 | 山东良工机械股份有限公司 | Spraying device for automobile parts |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN114700193A (en) | Working surface wetting and dust-settling device for ore construction blasting and implementation method thereof | |
CN207451473U (en) | A kind of construction site tower crane with spraying and dedusting | |
CN208115866U (en) | A kind of coating material production abrasive roller | |
CN108043769B (en) | Stirring type moving automobile part washing equipment | |
CN214552260U (en) | Underground movable dust falling device for coal mine | |
CN212383385U (en) | Building site dust device for environmental protection | |
CN218837379U (en) | Rotary sand blasting room structure | |
CN213036748U (en) | Automatic blanking device for automatic bearing production | |
CN116198949A (en) | Mining belt conveyor | |
CN218013490U (en) | Metal surface treatment device with dustproof effect | |
CN210993503U (en) | On-spot dust collector for construction | |
CN207495295U (en) | A kind of dust suppression abrasive blast equipment of miniature workpiece | |
CN113374444B (en) | Controllable expansion plugging agent pretreatment device for petroleum drilling | |
CN212942077U (en) | Environment-friendly building construction dust device | |
CN112827704B (en) | Paint spraying processing equipment for automobile front cover plate | |
CN213863980U (en) | Mining belt conveyor with intelligent dust fall function | |
CN208990460U (en) | A kind of surface blasting construction device for reducing dust | |
CN218991578U (en) | Soil discharging machine with dust fall function | |
CN208948418U (en) | Dummy car reversible conveyor | |
CN221207319U (en) | Dust collector is used in surface mine blasting | |
CN217340632U (en) | Height-adjustable spraying dust-settling device for underground coal mine | |
CN219034799U (en) | Mobile dust settling device for tunnel construction | |
CN211142950U (en) | Highway construction and maintenance device | |
CN221359138U (en) | Dust fall device for coal storage | |
CN221436199U (en) | Pipeline sand blasting robot |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220705 |
|
WD01 | Invention patent application deemed withdrawn after publication |