CN215632854U - Blast hole blowing device - Google Patents

Abstract

The utility model relates to the field of blasting, in particular to a blast hole blowing-cleaning device which comprises a high-pressure air pipe support frame and a high-pressure air pipe connected with a high-pressure air source, wherein the high-pressure air pipe support frame is provided with a high-pressure air pipe movement mechanism and a high-pressure air pipe guide wheel which can drive the high-pressure air pipe to move up and down. According to the utility model, the high-pressure air pipe support frame is aligned to the blast hole, then the high-pressure air pipe motion mechanism is used for driving the high-pressure air pipe to move, the high-pressure air pipe is conveyed into the blast hole, the high-pressure air pipe is used for conveying high-pressure gas to sweep the blast hole, and impurities and dust in the blast hole are blown out, so that the blast hole is cleaner and convenient to load, and the blasting effect is further ensured. Meanwhile, the descending height of the high-pressure air pipe can be calculated through the number of rotating circles of the high-pressure air pipe guide wheel, so that the depth of a blast hole is obtained, the loading amount is convenient to calculate accurately, accurate loading is realized, and the waste is reduced as far as possible while the design requirements are met.

Description

Blast hole blowing device

Technical Field

The utility model relates to the field of blasting, in particular to a blast hole blowing device.

Background

In the blasting work of an open-air mine field, after the blast holes are dug, a lot of dust and particles are often in the blast holes, and particularly, a lot of sundries can enter the blast holes which are not blasted after the blast holes are dug, so that before filling, the blast holes need to be blown, and the dust, the particles and the sundries in the blast holes are blown out. At present, the blasting field generally adopts the handheld tuber pipe of workman to sweep the big gun hole, and it is not good to sweep the effect, is difficult to effectually blow off debris and dust in the big gun hole, therefore the blasting effect is difficult to ensure. Meanwhile, the accurate depth of the blast hole cannot be known, the optimal loading is difficult to master, and waste is easily caused. In addition, because of the need of manual blowing, the blown dust easily causes harm to the health of workers. Therefore, it is very necessary to design a device specially used for blast hole purging.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving current big gun hole and sweep the method sweep the effect not good, influence the personal health easily, the loading is difficult to master the problem.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the blast hole blowing and cleaning device comprises a high-pressure air pipe support frame and a high-pressure air pipe connected with a high-pressure air source, wherein the high-pressure air pipe support frame is provided with a high-pressure air pipe movement mechanism and a high-pressure air pipe guide wheel, and the high-pressure air pipe movement mechanism can drive the high-pressure air pipe to move up and down.

Furthermore, the high-pressure air pipe comprises a hard air pipe arranged in the high-pressure air pipe support frame and a soft air pipe connected with an air source and the hard air pipe, and the soft air pipe is wound and released through the high-pressure air pipe reeling mechanism.

Furthermore, the high-pressure air pipe support frame is connected through a support air cylinder, and a support air leg is arranged at the lower end of the high-pressure air pipe support frame.

Furthermore, the lower end of the support air leg is connected with an air pipe anti-falling plate, the anti-falling plate is provided with a center hole through which the high-pressure air pipe passes, the lower end of the high-pressure air pipe passes through the center hole and is provided with an air pipe anti-falling head, and the air pipe anti-falling head is arranged below the anti-falling plate.

Furthermore, the air pipe anti-drop head comprises an annular protection plate with an opening formed in one side and a safety clamping plate hinged to the opening, and an elastic component is connected between the safety clamping plate and the annular protection plate. And a connecting plate

Furthermore, the lower end of the air pipe anti-falling head is conical.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the high-pressure air pipe support frame is aligned to the blast hole, then the high-pressure air pipe motion mechanism is used for driving the high-pressure air pipe to move, the high-pressure air pipe is conveyed into the blast hole, the high-pressure air pipe is used for conveying high-pressure gas to sweep the blast hole, and impurities and dust in the blast hole are blown out, so that the blast hole is cleaner and convenient to load, and the blasting effect is further ensured. Meanwhile, the descending height of the high-pressure air pipe can be calculated through the number of rotating circles of the high-pressure air pipe guide wheel, so that the depth of a blast hole is obtained, the loading amount is convenient to calculate accurately, accurate loading is realized, and the waste is reduced as far as possible while the design requirements are met. In addition, blast hole is blown through blast hole blowing device, and the workman need not closely to operate to can avoid dust, granule to cause the injury to the human body.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic top view of one end of a conveyor belt according to an embodiment of the utility model;

FIG. 3 is a dynamic diagram of the positioning mechanism for adjusting the position of the explosive bag according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a rack in an embodiment of the utility model.

FIG. 5 is a schematic structural diagram of an explosive unpacking device in an embodiment of the utility model;

FIG. 6 is a schematic top view of an explosive unpacking device according to an embodiment of the utility model;

FIG. 7 is a schematic structural view of a spike in an embodiment of the present invention;

FIG. 8 is a schematic diagram of the bag disengagement mechanism of the embodiment of the present invention;

FIG. 9 is a schematic illustration of the configuration of a crawler and an explosive bin in an embodiment of the present invention;

FIG. 10 is a schematic structural view of a sand silo in an embodiment of the utility model;

FIG. 11 is a schematic view showing the conveying state of the conveying device and the sand silo according to the embodiment of the utility model;

FIG. 12 is a schematic structural diagram of a blast hole scarfing apparatus according to an embodiment of the present invention;

FIG. 13 is a schematic structural view of a support air leg in an embodiment of the present invention;

FIG. 14 is a schematic view of the structure of an anti-slip head in an embodiment of the present invention;

fig. 15 is a schematic view of a filled blast hole state in the embodiment of the present invention.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Referring to fig. 1-6, the blast hole scarfing apparatus of the present invention is a sub-part of an open-air blast hole charging system for scarfing the blast hole prior to blast hole charging.

The open-air blast hole filling system in the embodiment includes a dangerous goods transport vehicle 100 for transporting explosive to a mine area, a transport device 200 for transporting explosive and sand, a crawler 300 for traveling and transporting the explosive and sand between blast holes, an explosive silo 400 for temporarily storing unpacked powder explosive and a sand silo 800 for storing sand, an explosive unpacking device 500 for opening an explosive bag X, and a spiral quantitative distributor 600 for transporting the explosive and sand to a blast hole Y.

After the dangerous goods transport vehicle 100 carrying the explosive bag X is driven to the site, the dangerous goods transport vehicle stays at a place which is relatively close to a blast hole and is relatively flat, then a conveying device 200 is erected, the explosive bag X is conveyed to an explosive unpacking device 500 through the conveying device 200, the explosive unpacking device 500 unpacks the explosive bag X, and the explosive falls into an explosive bin 400 for temporary storage; meanwhile, another conveying device 200 can be erected to synchronously convey the sand materials into the sand silo 800, or after the explosive in the explosive silo 400 is loaded to a specified height, the explosive charging is stopped, the conveying device 200 is moved to one side of the sand silo 800, and the sand material loading is started. After the explosive and the sand are loaded, the crawler 300 can be started to move to an area where blast holes are needed to be filled, and filling of the blast holes Y is carried out.

The spiral quantitative distributor 600 comprises an explosive spiral quantitative distributor 620 and a sand spiral quantitative distributor 630, the feed inlets of the explosive spiral quantitative distributor 620 and the sand spiral quantitative distributor 630 correspond to the explosive discharge port 410 and the sand discharge port 810 of the explosive bin 400 and the sand bin 800 respectively, the discharge ports of the explosive spiral quantitative distributor 620 and the sand spiral quantitative distributor 630 are connected with a discharge hose 610, and accordingly the explosive and the sand are sequentially filled into the blast hole Y through the discharge hose 610.

As an alternative, the spiral quantitative distributor 600 is a double-tube spiral quantitative distributor, two feed inlets of the double-tube spiral quantitative distributor correspond to the explosive discharge port 410 and the sand discharge port 810 of the explosive bin 400 and the sand bin 800 respectively, and two discharge ports of the double-tube spiral quantitative distributor are connected with the discharge hose 610, so that the explosive and the sand are directly conveyed into the blast hole Y through the discharge hose 610, and the filling of the explosive and the sand is completed.

Specifically, the explosive silo 400, the sand silo 800 and the spiral quantitative distributor 600 are provided on the crawler 300, and the sand silo 800 is integrally provided at one side of the explosive silo 400. When the blast hole is filled, the filling coefficient of the explosive is generally 60% -80%, the maximum volume of the sand material loaded in the sand bin 800 is 40% of that of the explosive bin 400, so that the explosive and the sand material are loaded according to the specific gravity of the explosive and the sand material, and the specific gravity of the sand material and the explosive is 0.7-0.8: 1.5 ~ 1.6 to guarantee that the focus of the material volume in explosive storehouse and the sand feed bin is balanced, prevent that tracked vehicle 300 from toppling.

The conveying device 200 comprises a frame 210 and a conveying belt 220, wherein the conveying belt 220 is installed on the frame 210 through rollers, and the rollers at one end part are driving rollers with power driving devices; one end of the conveying belt 220 extends into a container of the dangerous goods transport vehicle 100, the other end of the conveying belt is erected on a material receiving table 512 at the end part of the explosive unpacking device 500, when explosive is loaded, the explosive bag X is directly placed to the end part of the conveying belt 220 from the dangerous goods transport vehicle 100, the explosive bag X can be conveyed to the explosive unpacking device 500 through the conveying belt 220, unpacked and released into the explosive bin 400, and then conveyed through a crawler, so that the explosive is not required to be carried in a long distance, time and labor are saved, the safety is improved while the trafficability and the climbing capability are improved, and the labor intensity of workers is greatly reduced; meanwhile, the explosive unpacking device 500 can automatically unpack the explosive, so that the required manpower is reduced, and the manpower cost is reduced.

In addition, a limiting mechanism 230 is arranged at one end of the conveying belt 220 extending into the container 110, and throwing marks 240 are arranged on the conveying belt 220 at intervals; the position limiting mechanism 230 is used for adjusting and positioning the position of the explosive bag X placed on the conveying belt 220, so that the explosive bag X is kept at a required position, accurately conveyed to an explosive bin receiving platform of the explosive filling system 500, further processed by the explosive filling system 500, and efficiently filled into blast holes. The putting marks 240 arranged at intervals are used for prompting the placing time of the explosive bags, so that the explosive bags are spaced correspondingly, continuous or stacked conveying is avoided, and the subsequent explosive filling system 500 can treat the explosive bags more effectively without making mistakes.

Specifically, the limiting mechanism 230 includes two limiting bars 231 symmetrically disposed on the upper side of the end of the conveyor belt 220, the limiting bars 231 are fixed on the frame 210, the distance between the two limiting bars 231 is set according to the width of the explosive bag X, and the explosive bag X is maintained in the middle of the conveyor belt 220 after the position of the explosive bag X is adjusted by the limiting bars 231.

On the basis of the foregoing embodiment, the width between the two stopper bars 231 gradually narrows in the conveying direction from the end of the conveyor belt 220 disposed inside the dangerous goods transport vehicle 100, and the narrowest part is equal to the width of the explosive bag X, and the explosive bag is better ensured to be kept in the middle of the conveyor belt 220 by the limitation and adjustment of the narrowest part.

Referring to fig. 3, in another embodiment, each of the position-limiting bars 231 includes a guiding section 232 and a positioning adjustment section 233, the width between the guiding sections 232 on both sides gradually narrows from the end of the conveying belt 220 disposed in the dangerous goods transporting vehicle 100 along the conveying direction, and the narrowest part is greater than the width of the explosive bag X, the area enclosed by the part is wider, and the explosive bag is conveniently prevented; the positioning adjusting sections 233 on the two sides are arranged in parallel according to the width of the explosive bag X, and the specific width can be set to be equal to the width of the explosive bag X, so that the position of the explosive bag X is adjusted through spacing by a certain distance, and deviation is avoided; in addition, the guiding section 232 and the positioning adjusting section 233 are in smooth transition, so that the explosive bag X is prevented from being scraped and touched by edges, and explosive leakage is prevented.

In order to facilitate the prompt of the position for placing the explosive bag X, the placing mark 240 is a line arranged on the surface of the conveying belt 220, the line is perpendicular to two side edges of the conveying belt 220 and serves as a reference line, the line is placed on the rear side of the previous day in a unified mode during placing, and the line can be set to be in a striking color, such as yellow, so that the explosive bag X can play a better role.

For more convenient operation, the conveying device 200 can be set to be a portable foldable structure so as to be convenient to carry and erect quickly, and the working efficiency is improved.

In order to improve the accuracy of placing the explosive bag X and improve the automation degree, an automatic grabbing mechanical arm or a robot can be arranged in the dangerous goods transport vehicle 100, a sensing mechanism is arranged on the rack 210 at the end part of the conveying belt 220, the throwing mark 240 is detected by the sensing mechanism and sends a signal to the automatic grabbing mechanical arm or the robot, the automatic grabbing mechanical arm or the robot automatically grabs the explosive bag X and accurately throws the explosive bag X onto the conveying belt 220, the automatic throwing is realized, and the labor intensity is reduced to the maximum extent.

Referring to fig. 4, in some embodiments, the frame 210 includes a horizontal section 211, an adjusting section 212 and a supporting frame 213, the adjusting section 212 is hinged at an end of the horizontal section 211 and can rotate up and down, the horizontal section 211 is mounted on the supporting frame 213, a telescopic driving device 214 is arranged on the supporting frame 213, the telescopic driving device 214 is preferably an oil cylinder, a power source of the oil cylinder is a hydraulic oil station, power oil is output from the hydraulic oil station to enter the oil cylinder, and the direction and flow rate of an oil path are controlled by the hydraulic valve, so that the telescopic action and the supporting action of the oil cylinder are realized; the output rod tip of hydro-cylinder is connected with regulation section 212 through sliding connection spare, through such structure, can realize the luffing motion regulation of frame regulation section 212 to when tracked vehicle 300 walked to different height, carry explosive and sand material through angle regulation, application scope, use scene are more extensive.

In this embodiment, the sliding connection member is a connection block fixed on the adjustment section 212, a sliding groove is formed in the connection block, a sliding block adapted to the sliding groove is arranged at the end of the output rod of the oil cylinder, when the oil cylinder moves, the sliding block moves along the sliding groove in the sliding groove to realize angle adjustment of the adjustment section 212, and when the oil cylinder does not move, a stable triangular structure is formed to stably support the adjustment section 212 through the oil cylinder.

Referring to fig. 5-6, the explosive unpacking device 500 comprises a controller, a conveying frame arranged at the upper part of an explosive bin 400, and two parallel spike conveying belts 510 which are arranged on the conveying frame and driven by a driving mechanism to synchronously act, wherein a plurality of spikes 511 are densely arranged on the spike conveying belts 510, a packaging bag cutting knife 520 is also arranged on the conveying frame, and the packaging bag cutting knife 520 is positioned between the two spike conveying belts 510 and is higher than the upper belt surface of the spike conveying belts 510. When the device is specifically arranged, the end part of the conveying belt 220 of the conveying device 200 is higher than the spike conveying belts 510 and the spikes 511, and the width between the two spike conveying belts 510 is smaller than the width of the explosive bag X; when the explosive bag X conveyed on the conveying belt 220 falls down from the tail end of the conveying belt 220, the two sides of the explosive bag X are pierced by the barbed nails 511 and hung between the two barbed nail conveying belts 510, the explosive bag X runs along with the barbed nail conveying belts 510, after the explosive bag X advances for a certain distance, the lower side of the explosive bag X is contacted with the packaging bag cutting knife 520 and is cut off by the packaging bag cutting knife 520, explosive in the explosive bag X falls downwards from the cut opening under the action of gravity and falls into the explosive bin 400, so that automatic unpacking of the explosive bag is realized, unpacking efficiency is effectively improved, and labor cost is reduced.

Referring to fig. 7, in order to ensure safety of personnel and equipment, the piercing pins 511 are made of a non-ferrous metal alloy into a cylindrical shape, and the end of the cylindrical shape is formed in a rounded taper shape. The round-head conical structure can ensure that the pressure exceeding the piercing sensitivity of the explosive needle is not applied to the explosive when the piercing nail 511 pierces the packaging bag, thereby preventing fire and explosion. Because the barbed nail 511 is made of non-ferrous metal alloy, sparks cannot be generated due to collision and the like, the explosive cannot be mistakenly exploded, and the safety is further ensured. In addition, the spike 511 with such a structure has sufficient strength to reliably advance the explosive cartridge.

In order to better empty the explosive bag X, a timer and a travel switch 530 are further arranged, the timer and the travel switch 530 are in signal connection with a controller, when the packaging bag cutting knife 520 cuts the explosive bag X, the explosive bag X starts to advance under the driving of the spike conveyer belt 510 and simultaneously releases the explosive, when the explosive bag X continues to advance to the travel switch 530, the travel switch 530 sends a signal to the controller, the controller controls the spike conveyer belt 510 to stop running and controls the timer to start counting down, at the moment, the explosive bag X stops, the explosive gradually falls into the explosive bin from an opening on the lower side of the explosive bag X under the action of gravity, so that the explosive is fully released, the stopping time can be set according to actual conditions, and the explosive bag X is ensured to be released cleanly as much as possible. After the countdown is finished, the controller controls the spike transport belt 510 to continue to advance, and the explosive bag which has released the explosive is taken away.

In order to completely release the explosive in the explosive bag X, the two sides of the conveying frame are also provided with the vibration mechanisms 540, the vibration mechanisms 540 at the two sides are used for respectively impacting the two spike conveying belts 510, the explosive attached to the inner part of the explosive bag X can be separated through the impact of the vibration mechanisms 540 on the spike conveying belts 510, the explosive residue in the explosive bag is reduced to the maximum degree, and the waste is reduced. The vibration time of the vibration mechanism 540 is equal to the countdown time of the set counter, the vibration mechanism 540 starts to operate when the counting is started, and the vibration is finished when the countdown counting time is up.

Preferably, the vibration mechanism 540 is a vibration cylinder, the driving mechanism is a pneumatic motor, the vibration cylinder is connected with an air source through a pulse valve, a control system of the spike conveying belt is made of an air path, a part in contact with the explosive is set to be uncharged equipment as far as possible, explosion-proof design is strictly carried out on the control system, good grounding is guaranteed, accumulated static electricity is released into the ground at any time, hidden dangers are eliminated to the maximum extent, and safety of personnel and equipment is guaranteed.

In order to more efficiently remove the explosive bag discharged with explosive from the spike conveyor 510, a package bag separating mechanism 550 is further provided on the conveyor frame at the end of the spike conveyor 510, and a package bag collecting bin 460 for collecting the explosive bag is correspondingly provided below the package bag separating mechanism 550. After the countdown is finished and the shock cylinder stops impacting, the explosive bag X is unloaded, the explosive is continuously driven by the barbed nail conveyor belt 510 to advance, when the explosive bag X advances to the packaging bag separation mechanism 550, under the combined action of the packaging bag separation mechanism 550, the barbed nails 511 and the barbed nail conveyor belt 510, the explosive bag is stripped from the barbed nails 511 through the packaging bag separation mechanism 550, so that the explosive bag is automatically removed, the stripped explosive bag falls into the packaging bag collection bin 460 to be stored in a concentrated mode, the explosive bag can be recovered in a concentrated mode in the subsequent process, and the environment pollution and the explosive loss are prevented.

Specifically, the package bag detaching mechanism 550 is an arc-shaped plate disposed between the two spike conveyor belts 510, and the arc-shaped surface of the arc-shaped plate is higher than the spikes 511, so that the explosive bag hung on the spikes 511 is automatically peeled off by the power of the spike conveyor belts 510.

Referring to fig. 8, in some embodiments, the curved plate includes an arc portion 551, a mounting portion 552, and a vertical portion 553, the mounting portion 552 forming an angle of less than 45 ° with the spike transport belt 510 to more smoothly arch under the pouch to prevent the pouch from becoming caught, and the vertical portion 553 extending into the pouch collection bin 460, the pouch being arched away from the spike 511 and then sliding along the arc portion 551 and the vertical portion 553 into the pouch collection bin 460.

Referring to fig. 6, in order to prevent the explosive bag X from falling empty, a material receiving table 512 is arranged on the conveying frame at the head end of the spike nail conveying belt 510, explosive package guide plates 513 are arranged on both sides of the material receiving table 512, and the explosive package guide plates 513 can further automatically adjust the position of the explosive bag X in the conveying process, so that a package bag cutting knife 520 can accurately open the package bag, and the explosive bag is prevented from being shifted and cannot be hung by the spike nails 511 on both sides.

Referring to fig. 9, the tracked vehicle 300 includes a tracked running gear 310 and a vehicle body 320, the vehicle body 320 is installed on the tracked running gear 310 through a revolving mechanism 330, a explosive bin 400, a sand bin 800 and a spiral quantitative distributor 600 are arranged in the vehicle body 320, through the revolving mechanism 330, the vehicle body 320 can rotate on the tracked running gear 310, so that blast holes Y around the position where the tracked vehicle 300 is located can be filled more conveniently, a plurality of hole sites on the periphery are radiated on one machine position, the frequency of movement of the tracked vehicle 300 is reduced, the coverage is wider, and the blast hole filling efficiency is improved conveniently.

In addition, a power battery pack 340 is arranged on one side inside the vehicle body 320, and a water storage tank 350 is arranged on the other side inside the vehicle body 320. The power of the crawler travelling mechanism 310, the explosive unpacking device 500 and the spiral quantitative distributor 600 is provided by the power battery pack 340, and the integral dead weight and the dependence on external energy are reduced by integrating the power battery pack, so that the explosive unpacking device can work independently, and the application scene is wider; the power battery pack 340 and the water storage tank 350 are respectively arranged on two sides of the interior of the vehicle body 320, so that the weight of the vehicle body 320 can be balanced, excessive abrasion of the rotary mechanism 330 caused by excessive weight on one side can be prevented, and the service life can be prolonged; in addition, the storage tank 350 may also provide a reserve source of water for fire protection and subsequent cleaning of the entire system.

Specifically, the crawler traveling mechanism 310 adopts an electric self-propelled crawler chassis, the crawler is driven by a direct current motor, functions of advancing, retreating, turning and the like are realized, and the crawler traveling mechanism is simple in structure, light in weight, easy to control and convenient to maintain.

In order to ensure the safety, all electrical appliances of the whole system are strictly subjected to explosion-proof design, the electrostatic discharge device 360 is arranged on the vehicle body 320, good grounding is ensured through the electrostatic discharge device 360, and the accumulated static electricity is discharged to the ground at any time.

Referring to fig. 6 and 9, in order to prevent the vehicle from being unable to work after the energy is exhausted, an external energy control box 370 may be further disposed on the vehicle body 320, so that the external power source can be connected to the external power source through the external energy control box 370, and the power battery pack 340 can be used in emergency when the energy is exhausted. In addition, a control center 380 and a driving platform 390 are arranged on the vehicle body 320 so as to control the whole system and drive the tracked vehicle 300 to walk in a mining area; the control center 380 is connected with a line control operator 381, which is convenient for operation while standing on the ground.

Referring to fig. 5, in order to prevent the explosive from caking, an explosive bin wall vibrator 420 is arranged on the outer wall of the explosive bin 400, and the explosive in the explosive bin 400 can be uniformly conveyed to the spiral quantitative distributor through the vibration of the explosive bin wall vibrator 420, so that the distributor can accurately distribute the explosive, powder particles adhered to the bin wall can be shaken off, and the bin wall is kept clean and free of explosive residues.

In order to prevent the agglomerated explosive from entering the explosive bin, an explosive bin vibrating screen 430 is further arranged inside the explosive bin 400 below the explosive unpacking device 500. The explosive bin vibrating screen 430 is powered by a pneumatic vibrator, and shakes the explosive extruded into pieces and then drops into the explosive bin 400, so as to prevent the explosive bin from being plugged.

In order to prevent wind and rain from entering, a explosive bin dust cover 440 is arranged on the upper portion of the explosive bin 400, movable explosive bin door curtains 470 are arranged at the front end and the rear end of the explosive bin dust cover 440, and the explosive bin dust cover 440 and the movable explosive bin door curtains 470 can prevent rainwater from entering and prevent explosive powder from scattering due to wind, shaking and other reasons.

In order to clean the explosive chamber 400 after the operation is finished, a high-pressure spray water gun 450 is arranged in the dustproof cover 440 of the explosive chamber, and the high-pressure spray water gun 450 can supply water through the water storage tank 350. Meanwhile, the high-pressure spray water gun 450 can also be used for preventing the explosive bin from firing, so that when the explosive bin 400 is fired or exploded, a large amount of water is rapidly sprayed through the high-pressure spray water gun 450 to extinguish or extinguish, hidden dangers are eliminated, and safety is guaranteed.

The high-pressure spray water gun 450 is a self-rotating high-pressure water gun, and comprises a main shaft and a plurality of water outlets, the water outlets and the main shaft are arranged at a certain angle, and when water is sprayed out, the gun body rotates under the action of a reaction force, so that complete cleaning in the bin body is ensured.

Referring to fig. 10 to 11, in order to prevent the sand in the sand silo 800 from being agglomerated and unable to be discharged, a sand silo wall vibrator 820 is further disposed on an outer wall of the sand silo 800, and the agglomerated sand can be shaken and dispersed by the sand silo wall vibrator 820, so that the sand is kept in a loose state, and is convenient to discharge and transport. In addition, the inside of the upper part of the sand silo 800 is also provided with a sand silo vibrating screen 830 which is obliquely arranged, and the outside of the sand silo 800 is provided with a material receiving plate 840. The end of the conveyor belt 220 of the conveyor 200 is located on the sand silo vibrating screen 830, so that the feeding is facilitated, and sand enters the sand silo after being conveyed to the sand silo vibrating screen 830 through the conveyor belt 220 and filtered by the sand silo vibrating screen 830. Because sand storage hopper shale shaker 830 is the slope setting, through the screening back, unqualified sand material is outside dropping out the sand storage hopper, and the outside flitch 840 that connects of rethread sand storage hopper 800 is on one side with unqualified sand material direction, avoids damaging the whole filling system of work.

In order to prevent the dust in the sand silo from flying, a dust cover 850 of the sand silo is arranged at the upper part of the sand silo 800, and a movable door curtain 860 of the sand silo is arranged between the dust cover 850 of the sand silo and the upper edge of the sand silo 800, so that a large amount of dust generated during the operation of the vibrating screen 830 of the sand silo is prevented from flying out of the silo and polluting the environment; in rainy days, rainwater can be prevented from entering the sand silo 800, and the influence on the flowability of the sand due to overlarge water content of the sand is avoided.

Referring to fig. 1, 6, 9 and 12, in order to facilitate cleaning of blast holes, the blast hole cleaning device 700 of the present invention includes a high-pressure air duct support 710 and a high-pressure air duct 720 connected to a high-pressure air source, wherein the high-pressure air duct support 710 is provided with a high-pressure air duct movement mechanism 730 and a high-pressure air duct guide wheel 740, which can drive the high-pressure air duct 720 to move up and down. Before formal loading, align blasthole Y with high-pressure air pipe support frame 710, then drive high-pressure air pipe 720 through high-pressure air pipe motion 730 and move, carry high-pressure air pipe 720 in blasthole Y, carry high-pressure gas through high-pressure air pipe 720 and sweep blasthole Y, blow off debris and dust in blasthole Y, make the blasthole cleaner and be convenient for load, and then guarantee blasting effect.

At the initial stage when the high-pressure air pipe 720 enters the blast hole Y, an operator controls the high-pressure air pipe 720 by using the wire control operator 381 at a long distance and controls the air pressure and the air quantity in the high-pressure air pipe 720 by adjusting the pressure and the flow of an air source, when meeting large resistance or excessive blown impurities, the high-pressure air pipe 720 stops descending, and the position is kept for a period of time until no impurities are blown out and then descends again. When the high-pressure air pipe 720 reaches the bottom of the blast hole Y, the high-pressure air pipe 720 can generate an uprush phenomenon due to unsmooth ventilation, after the air pipe does not continue to descend and the ventilation condition is not improved after lasting for several seconds, which indicates that the air pipe reaches the bottom of the blast hole, and at the moment, the control center 380 calculates the descending distance of the high-pressure air pipe 720 according to the number of rotating circles of the high-pressure air pipe guide wheel 740, namely the depth of the blast hole Y. After the depth of the blast hole is measured, an operator controls the high-pressure air pipe 720 to move upwards for a certain distance, gradually increases the ventilation volume and the air pressure, and keeps for a certain time until no sundries are blown out from the blast hole Y, which indicates that the blast hole is blown clean.

Referring to fig. 15, after the blast hole Y is completely blown, the blasting cartridge is put into the bottom of the blast hole Y, then the discharge hose 610 is connected to the orifice of the blast hole, the explosive loading amount and the sand loading amount are set on the line control operator 381 according to the depth of the blast hole and the loading coefficient of the blast hole, after the setting is completed, the explosive spiral quantitative distributor 620 and the sand spiral quantitative distributor 630 are sequentially started, the explosive is loaded first, and after the setting is completed, the sand is loaded, so that the loading of the blast hole is completed. When the explosive spiral quantitative distributor 620 and the sand spiral quantitative distributor 630 are started, the explosive bin wall vibrator 420 and the sand bin wall vibrator 820 respectively start to work, vibration of a certain frequency to the bin wall is kept, the explosive and the sand slide down uniformly, and no material accumulation on the bin wall is ensured.

After all blast holes in the explosion area are filled in a circulating mode in sequence, the crawler 300 is driven out of the explosion area, the explosive spiral quantitative distributor 620 and the sand spiral quantitative distributor 630 are started, the explosives and the sand in the bin are cleaned up, and the explosives are collected together for warehouse-returning processing. After cleaning, the high-pressure spray water gun 450 is started, and the explosive bin 400 and the sand bin 800 can be cleaned.

In order to drive the high-pressure air pipe conveniently, the high-pressure air pipe 720 can be set to be combined with the hard air pipe 721 and the soft air pipe 722, wherein the hard air pipe is arranged in the high-pressure air pipe supporting frame 710 and driven to move up and down by the high-pressure air pipe movement mechanism 730, the soft air pipe 722 is connected with the air source and the hard air pipe 721, and the soft air pipe 722 is wound and released by the high-pressure air pipe rolling mechanism 780 so as to be wound and sorted. High-pressure air hose reel 780 is disposed on explosive bin 400.

Referring to fig. 12 and 13, in order to facilitate positioning, the high-pressure air duct supporting frame 710 is connected to the end of the spiral quantitative distributor 600 through a supporting cylinder 750, and a supporting air leg 760 is disposed at the lower end of the high-pressure air duct supporting frame 710. After the high-pressure air pipe support frame 710 is aligned with the blast hole Y, the support air leg 760 extends out and is supported on the ground, and the length of the high-pressure air pipe is reset to zero through the wire control operator 381 at the moment, so that the depth of the blast hole can be accurately calculated through the moving height of the high-pressure air pipe.

Referring to fig. 13, the lower end of support air leg 760 is connected with air duct anti-slip plate 761, anti-slip plate 761 is provided with a central hole through which high-pressure air duct 720 passes, the lower end of high-pressure air duct 720 passes through the central hole and is provided with air duct anti-slip head 770, air duct anti-slip head 770 is disposed below anti-slip plate 761, and the diameter of the central hole of anti-slip plate 761 is smaller than the diameter of anti-slip head 770. The air pipe anti-drop head 770 limits the lower end of the high-pressure air pipe 720 below the anti-drop plate 761, prevents the air pipe from flying out of the blast hole to hurt people, and improves safety. Support gas leg 760 adopts multistage gas to prop, is in the state of withdrawing at ordinary times, prevents to hinder and removes, stretches out during the use and presses on ground, plays fixed anticreep board 761 and reduces trachea support frame work load's purpose. The anti-slip plate 761 is linked with the supporting air leg 760, and when the supporting air leg 760 descends, the anti-slip plate 761 descends to the orifice at the same time.

The tuber pipe anticreep head 770 lower extreme is the toper, has reduced the front end area like this, conveniently transfers into the big gun hole, reduces the risk of card, and when can also reducing wind and blowing the stone, the probability of anticreep head is hit to the stone that splashes.

Referring to fig. 14, the air duct detachment preventing head 770 includes an annular protecting plate 771 having an opening at one side, a safety catch plate 772 hinged at the opening, and a connecting plate 773, and an elastic member is connected between the safety catch plate 772 and the annular protecting plate 771. The elastic member is preferably a snap spring. During the installation, go into annular backplate 771 central point behind passing through insurance cardboard 772 with high-pressure air pipe 720 lower extreme, insurance cardboard 772 keeps the contact with annular backplate 771 under elastomeric element's effect, prevents that high-pressure air pipe 720 from droing from the annular backplate, before taking off high-pressure air pipe, compresses insurance cardboard 772 earlier, reserves the space that high-pressure air pipe 720 moved, releases insurance cardboard 772 after high-pressure air pipe takes out.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.

Claims (6)

1. The blast hole blowing device is characterized by comprising a high-pressure air pipe support frame (710) and a high-pressure air pipe (720) connected with a high-pressure air source, wherein the high-pressure air pipe support frame (710) is provided with a high-pressure air pipe movement mechanism (730) and a high-pressure air pipe guide wheel (740), and the high-pressure air pipe movement mechanism can drive the high-pressure air pipe (720) to move up and down.

2. The blast hole blast apparatus according to claim 1, wherein said high pressure air duct (720) comprises a hard air duct (721) disposed in said high pressure air duct support frame (710), and a flexible air duct (722) connecting an air source to said hard air duct (721), said flexible air duct (722) being wound and released by a high pressure air duct winding mechanism.

3. The blast hole scarfing apparatus according to claim 1, wherein the high-pressure blast pipe support frames (710) are connected by a support cylinder (750), and support air legs (760) are provided at lower ends of the high-pressure blast pipe support frames (710).

4. The blast hole scarfing apparatus according to claim 3, wherein a blast pipe anti-slip plate (761) is connected to a lower end of the supporting air leg (760), a central hole is formed in the anti-slip plate (761), the high-pressure blast pipe (720) passes through the central hole, a blast pipe anti-slip head (770) is provided at a lower end of the high-pressure blast pipe (720), and the blast pipe anti-slip head (770) is disposed below the anti-slip plate (761).

5. The blast hole scarfing apparatus according to claim 4, wherein the blast pipe drop-proof head (770) comprises an annular guard plate (771) having an opening at one side, a safety catch plate (772) hinged at the opening, and a connecting plate (773), and an elastic member is connected between the safety catch plate (772) and the annular guard plate (771).

6. The blast hole scarfing apparatus according to claim 4, wherein said blast pipe drop prevention head (770) has a tapered lower end.

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