19results about How to "Guaranteed blasting effect" patented technology

The invention belongs to the technical field of punching equipment, and particularly relates to a special variable-diameter down-the-hole drill bit for large strip mine deep blast hole punching, which comprises a drill bit neck, a drill bit body is fixedly connected to the drill bit neck, first drill teeth are fixedly mounted on the drill bit body, square grooves are formed in the drill bit body in an array manner, and adjusting assemblies are arranged in the square grooves. A square block is arranged in the square groove in a penetrating mode, one end of the square block is fixedly connected with a reaming head, and a frame is arranged in the square block. According to the special variable-diameter down-the-hole drill bit for drilling the deep blast holes in the large strip mine, through the arranged square block and the reaming head, the blast holes with different diameters can be conveniently excavated for use, so that when the explosive consumption is increased and the blasting effect is ensured, the micro motor works to enable the square block to move, and through cooperation of the reaming head after the square block is moved, the drilling efficiency is improved; when the drill bit body rotates, the reaming head can be driven to do circular motion, the area of a digging and penetrating site of the drill bit body is enlarged through the reaming head, and the purpose of enlarging and adjusting the diameter of a dug blast hole is achieved.

The invention provides a sand blasting pneumatic control system and sand blasting equipment, and belongs to the technical field of water heater production, the control system comprises a compressed air source and an air distribution system, and the air distribution system comprises at least one air inlet and at least one air outlet. An air inlet of the air distribution system is communicated with a compressed air source, and an air outlet of the air distribution system is communicated with the proportional valve through a pipeline. A mixing cavity is formed in the proportional valve, the mixing cavity is communicated with an outlet of the air distribution system and further communicated with the sand supply device, and a sand outlet is formed in the mixing cavity and communicated with the spray gun. According to the system, the pneumatic control mode that traditional sand blasting equipment pressurizes the interior of the pressure tank is changed, air is supplied to the spray gun through the brand new air path control system, air pressure loss can be reduced, the spraying effect of the spray gun branch is enhanced, and the sand blasting quality is improved.

The utility model discloses a high security liquid oxygen blasting device, including a plurality of liquid oxygen explosion pipe, each liquid oxygen explosion pipe all is installed with branch line, a plurality of branch line common installation has main line, the end of main line is installed with two plug -in post, one side of two plug -in post common is equipped with detonator, the top of detonator is installed with protective cover, be equipped with limiting mechanism on the protective cover, be equipped with four adjusting mechanism on the protective cover, the outer wall fixed connection of detonator has two C type handle that is symmetrically set, install rotary button on detonator, be equipped with two insertion slot on detonator, two plug -in post all cooperate with insertion slot. The utility model discloses through the setting of protective cover and its limiting mechanism, can reliably isolate sundries, greatly promote operation security, the adjusting mechanism on protective cover can adjust support leg height flexibly, make control equipment also can keep level on the uneven ground, be convenient for staff operation.

The utility model relates to operation equipment technical field especially, it is tunnel blasthole operation equipment with multi -way stuffing function. It mainly aims at the traditional tunnel blasthole stuffing adopts the pipeline perpendicular to tunnel wall, because the quantity of tunnel blasthole is many, the position is complex, leads to this mode to be difficult to flexibly aim at the blasthole of non - perpendicular or tricky position, there is the problem that the operation is complicated, the efficiency is low, and the following technical scheme is proposed, including the fixed pipe of setting in blasthole one side, the fixed pipe is away from blasthole one end and is provided with the guide pipe, the steering assembly is connected in the fixed pipe with the guide pipe between, the steering assembly is used for adjusting the orientation of guide pipe, the medicine pushing mechanism is installed in the fixed pipe side, the medicine pushing mechanism is used for pushing the medicine bag and inserts it into the blasthole, the let - go component is arranged on the medicine pushing mechanism, and the let - go component is used for letting - go. The utility model has improved the convenience and quality of stuffing operation, and has enhanced the blasting effect and construction safety.

The utility model discloses a titanium polar plate sand blasting device with a positioning function, which belongs to the technical field of plate sand blasting and comprises a machine body, a motor is arranged in the machine body, supporting rods are fixedly connected to the left end and the right end of the outer wall of the motor, and the tail ends of the supporting rods are fixedly connected to the bottom wall of the machine body. The output end of the motor is fixedly connected with a first connecting column, the top end of the first connecting column is fixedly connected with a containing disc, the top wall of the machine body is fixedly connected with a plurality of second connecting columns, the top ends of the second connecting columns are fixedly connected with a sand blasting chamber, and a pushing mechanism is arranged at the left end of the inner wall of the sand blasting chamber and comprises a first sliding groove. The placing disc can be controlled to rotate slowly by starting the motor, so that the position of a sand blasting workpiece can be adjusted, and the sand blasting device is controlled to move up and down in cooperation with the electric push rod, so that all-directional sand blasting can be performed on the workpiece, and the sand blasting efficiency is improved.

This invention discloses a high-temperature resistant downhole emulsion explosive and its preparation method, belonging to the field of emulsion explosive technology. The emulsion explosive comprises an aqueous phase material, an oil phase material, and a sensitizer, with a mass ratio of (88-96):(4-12):(0.8-2.0). The aqueous phase material, by mass parts, includes the following raw materials: 70-80 parts ammonium nitrate, 4-6 parts sodium nitrate, 5-8 parts urea, 0.1-0.6 parts chitosan quaternary ammonium salt, and 10-20 parts water. The oil phase material, by mass parts, includes the following raw materials: 50-70 parts composite oil phase and 20-40 parts composite emulsifier, which includes Span80 and polyisobutylene succinimide derivatives. This invention involves adding the aqueous phase material to the oil phase material, adding the sensitizer to the emulsion matrix formed by emulsification, and stirring to prepare the emulsion explosive. The emulsion explosive provided by this invention is suitable for use in deep well high-temperature environments and exhibits good high-temperature stability.

This invention relates to the field of borehole charging and sealing technology, specifically a vehicle-mounted, fan-shaped, upward-facing borehole charging and sealing device. It includes a charging and sealing mechanism, an angle adjustment mechanism, and a moving and lifting mechanism. The moving and lifting mechanism includes an unmanned vehicle (UAV); a lifting platform is fixed on the UAV. The angle adjustment mechanism includes a base fixed to the lifting platform; a servo cylinder is hinged to the base; a swing arm is hinged to both the base and the servo cylinder; a lower crossbeam and an upper crossbeam are mounted on the swing arm. The charging and sealing mechanism includes a servo motor mounted on the lower crossbeam and a delivery pipe mounted on the upper crossbeam; an end cap is sealed at the lower end of the delivery pipe; and a delivery auger is installed inside the delivery pipe. This invention solves the problems of time-consuming and labor-intensive operation, poor charge density, and poor sealing performance of existing borehole charging and sealing technologies when applied to fan-shaped, upward-facing boreholes. It is suitable for blasting projects such as mining and tunneling.

This utility model proposes a mounting device for sandblasting a front fork, including a mounting base, a vertical rod, a fixing plate, a telescopic rod, and positioning components. The upper end of the vertical rod is fixed to the lower end of the mounting base. The fixing plate is mounted on the vertical rod, and the telescopic rod is mounted on the circumference of the fixing plate. The telescopic rod has multiple vertical mounting holes, and the positioning components are installed in the vertical mounting holes. The front fork is mounted between two adjacent positioning components. This solution uses a rod-shaped component to directly suspend and mount the front fork. The positioning components prevent excessive movement of the front fork, reduce obstruction of the front fork, and facilitate more thorough sandblasting, thereby improving the quality of the front fork and ensuring the sandblasting effect.

The utility model belongs to the field of wine box processing, particularly relates to frosted wine box manufacturing equipment, and aims to solve the problems that an existing isolation bin is large in size, a purging device is located above a conveying belt, the purging effect on the space between the bottom of the conveying belt and the inner wall of the bottom of the isolation bin is poor, and part of sand grains are prone to remaining on the inner wall of the bottom of the isolation bin. According to the scheme, the wine box conveying device comprises a shell, a conveyor is installed on the inner wall of the bottom of the shell, and a plurality of positioning frames are arranged on the surface of the conveyor and used for positioning wine boxes; the lifting base is arranged in the shell, an infrared sensor is fixedly arranged at the bottom of the lifting base, and a through rectangular groove is formed in the surface of the lifting base. According to the wine box sand blasting device, sand blasting can be conducted on a wine box in a small space, the sand blasting effect is guaranteed, air flowing can be facilitated, the wine box is prevented from being deformed due to pressure, and therefore the wine box sand blasting effect is improved. And air flow can be accelerated during air extraction, so that the extraction effect on residual sand grains is ensured.

The present invention discloses a device and method for charging and backfilling a mine sidewall collapsed blasthole, comprising a drug guide tube, wherein the outer diameter of the drug guide tube is smaller than the inner diameter of the blasthole, the length of the drug guide tube is greater than the depth of the blasthole, and there is a gap between the inner wall of the blasthole and the outer wall of the drug guide tube; a backfilling mechanism, wherein the backfilling mechanism comprises a plurality of push rods whose length is greater than the depth of the blasthole, and the push rods can be slidably arranged in the gap along the axial direction of the blasthole; and a drill bit, wherein the drill bit is detachably fixedly connected to the bottom end of the drug guide tube. The device does not need to clean the residual rock powder in the blasthole, and can repair the collapsed area of ​​the inner wall of the blasthole at a low cost, and charging is smooth and convenient without clogging.

The application discloses a non-coupling type interval charge line bucket fixing device. The non-coupling type interval charge line bucket fixing device comprises a pay-off device for releasing a traction line, an assembling device for assembling the traction line and an explosive bucket, and a mounting table for mounting the pay-off device and the assembling device. The assembling device comprises a bearing table for bearing the explosive bucket, a pulling mechanism for pulling a handle of the explosive bucket, a shifting mechanism for driving the bearing table and the pulling mechanism to move, and a bolt mechanism for inserting a bolt into the explosive bucket. The bearing table and the pulling mechanism are mounted on the shifting mechanism, and the bolt mechanism is mounted on the mounting table. The non-coupling type interval charge line bucket fixing device can fix the traction line and the explosive bucket, can replace manual work, and can ensure the interval accuracy of the explosive buckets.

The present application relates to the technical field of explosive mixing and loading in cold open-pit mine, and particularly discloses a borehole ice-breaking and de-icing device and method for explosive mixing and loading vehicle in cold open-pit mine. The borehole ice-breaking and de-icing device comprises a device body, a feeding port at the top end of the device body is in communication with a discharge pipe of the explosive mixing and loading vehicle; a walking mechanism, an ice-breaking mechanism, a monitoring system, a heater and a water suction pipe are installed on the device body; the monitoring system is used for detecting the temperature in the borehole and real-time detecting the ice formation in the borehole, and transmitting the detection data to a control processing center in real time; the end of the water suction pipe is connected with a water suction pump; the walking mechanism, the ice-breaking mechanism, the monitoring system, the heater and the water suction pump are electrically connected with the control processing center. The present application can be used with the existing explosive mixing and loading vehicle to clean the ice in the borehole; and the charging speed can be dynamically adjusted according to the charging flow monitoring.

The invention belongs to the technical field of blasting engineering, and particularly discloses a novel non-coupling smooth blasting method. The blasting method comprises the steps that a row of peripheral holes are formed in the junction of a roadway driving working face and a surrounding rock retaining area, and slotting holes and auxiliary holes are formed in the inner sides of the peripheral holes; designing peripheral hole parameters and a charging structure; a blast hole arrangement diagram is drawn, and holes are distributed; according to the parameter design, peripheral holes, slotting holes and auxiliary hole cartridge bags are manufactured; according to the parameter design, the peripheral holes are filled with the explosive packages in an axial and radial non-coupling explosive loading mode, and the slotting holes and the auxiliary holes are filled with the explosive packages in an axial continuous explosive loading mode; a blasting network is connected and checked, then the slotting holes and the auxiliary holes are detonated firstly, and then the peripheral holes are detonated; a blasting vibration tester is arranged outside the blasting source, and the blasting vibration speed is collected to monitor the blasting vibration magnitude. The explosive loading amount of the peripheral holes and the peak pressure of detonation on the hole walls can be reduced, so that the smooth blasting effect is improved, and the blasting harm caused by blasting vibration is reduced.

The utility model relates to the technical field of coal mines, in particular to a blast hole sealing device for coal mine underground top cutting blasting, which is characterized in that the top of a top frame is fixedly connected with a top plate, the top of the top plate is fixedly connected with a hydraulic oil cylinder through a bolt, and an output shaft of the hydraulic oil cylinder penetrates through the top plate and is fixedly connected with the top of a fixed plate; a plurality of supporting rods are fixedly connected to the bottom of the fixing plate, the extending ends of all the supporting rods sequentially penetrate through the top of the top frame and the side wall of the bearing cylinder, and an annular plate is fixedly connected to the bottom of the fixing plate. Through the design of the supporting rod and the inserting rod, connection between the hole sealing device and the inner wall of the blast hole is firmer, the problem that traditional hole sealing materials such as yellow mud fail to be sprayed out due to axial impact force generated by explosive explosion is solved, and therefore the overall stability and sealing performance of blast hole sealing are improved; the whole device can be tightly attached to the inner wall of the blast hole, and stability is achieved through a mechanical structure instead of a loose hole sealing agent.

The utility model discloses a surface mine blasting water hole charging device, and particularly relates to the technical field of blasting, which comprises a charging barrel, the bottom end of the charging barrel is in a closed state, and the top end of the charging barrel is in an open state; the sinking part comprises a PVC pipeline and an iron block, the PVC pipeline is fixedly connected with the bottom of the explosive charging barrel, the bottom of the PVC pipeline is in a closed state, a placing opening is formed in the side wall of the PVC pipeline, the iron block penetrates through the placing opening to enter an inner cavity of the PVC pipeline, the explosive is charged into the explosive charging barrel, the influence of water on the explosive performance can be avoided, and the blasting effect is guaranteed; the explosive charging barrel is inserted into the blast hole, water in the blast hole can be directly squeezed out, the water blowing process is reduced, the construction process is simplified, the phenomena of hole blockage and hole waste in the existing water blowing process are avoided, and the construction quality is guaranteed.

The utility model relates to the technical field of tunnel blasting, and discloses a drilling and explosive loading integrated trolley device which comprises a moving trolley, a drilling platform arranged on the moving trolley and an explosive storage device located at the tail of the drilling platform. And the control system is simultaneously connected with the hydraulic system and the power system. After drilling is completed, emulsion explosives are loaded into a shot hole through the spiral drill rod, interval charging can be achieved by controlling the cantilever to stretch out and draw back, the influence on blasting charging due to the fact that the wall of a drilled hole is broken and surrounding rock falls is effectively prevented, interval charging can be achieved, the blasting charging accuracy is improved, manpower and material resources are saved, and the tunnel blasting effect is guaranteed.

The present invention belongs to the technical field of blasting for underground mining, and discloses a method and system for blasting operations for underground mining of different mineral rocks. The method determines the blastability classification of different mineral rocks for different mineral rocks; determines the single-consumption blasting parameter index of different mineral rocks during different blasting operations; determines the parameter index related to the blasting construction process in slot blasting, smooth blasting, and medium-deep hole blasting, and provides data for mine blasting construction. The present invention can greatly improve the safety of well formation operations; the optimized design of the pillar recovery process can achieve efficient recovery of retained pillars, reduce the disturbance of blasting construction to the roof and other protection areas, and improve the recovery efficiency of the goaf area by designing the order of pillar recovery, realize the maximum utilization of resources, and improve economic benefits.

The invention provides a blast hole depth determination method and system for a to-be-exploded area of rock on mine coal, and the method comprises the following steps: calibrating the to-be-exploded area of the upper part of a coal seam, the calibration content comprises a step slope crest line, a back-row excavation line and a slope coal seam occurrence, the step slope crest line is an intersection line of a step upper flat plate and a free slope, and the back-row excavation line is a back-row excavation line; the back-row excavation line is a boundary line for mining and loading of an excavator, and the slope coal seam occurrence is mainly based on the coal seam trend and the coal seam inclination angle and used for mastering the change trend of the coal seam; according to the calibration content and the calibrated to-be-exploded area, the hole distance and the row number of the coal-seeing exploration holes are designed; drilling to a coal seam to obtain a coal-seeing exploring hole, and designing a backfilling depth to backfill the coal-seeing exploring hole; measuring the depth of the backfilled coal-seeing probe hole; according to the hole distance and the row number of the coal-seeing exploring holes, the hole depth of one row of the coal-seeing exploring holes is used as the hole depth of two rows of normal blast holes to determine the depths of other blast holes, so that the technical problem of determining the hole depth of the rock blast holes on the upper portion of the coal seam is solved.

The invention discloses an exploration footrill blasting hole arrangement structure and an exploration footrill blasting construction method, the exploration footrill blasting hole arrangement structure comprises a central empty hole, slotting holes, hole expanding holes, a caving hole, an auxiliary hole and a contour hole, and a plurality of slotting holes are arranged along the edge of a square at intervals; the square surrounds the central hollow hole and is concentric with the central hollow hole, one pair of sides of the square are vertical, and the other pair of sides of the square are horizontal; a plurality of groove expanding holes are formed along the edge of a rhombus at intervals; the rhombus surrounds the square and is concentric with the square, one diagonal line of the rhombus is vertical, and the other diagonal line is horizontal; a plurality of caving holes are formed along the first arch line at intervals; the first arch line is parallel to the upper arch section of the contour line of the excavation section; a plurality of auxiliary holes are formed at intervals along a contour similar line; the contour similar line is composed of a second arched line, a first horizontal line and two first vertical lines; the second arched line is parallel to the upper arched section of the contour line; and a plurality of contour holes are arranged at intervals along the contour line of the excavation section.