Mine blasting detonating cord initiating explosive package automatic device and construction technology

Abstract

The invention discloses a mine blasting detonating cord initiating explosive package automatic device and a construction technology. The device comprises a detonating cord routing mechanism (comprising a fixed pulley module, a detonating cord pay-off / take-up device and a gear), an explosive binding mechanism (comprising a manual rubber winding device, a latex explosive guide rail and a positioning piece), a control system and a safety protection device. The manual rubber winding device is in transmission with a synchronous belt through a gear, so that the emulsion explosive and the detonating cord are accurately wound by a rubber belt. The construction process comprises the steps of preparing (charging and debugging), starting (taking up a detonating cord), binding (putting explosive, propelling to wind glue and cutting off an adhesive tape), checking (firmness and precision) and repeating to form the initiating explosive package. The problems that the existing operation efficiency is low, and the quality is greatly influenced by personnel / seasons are solved, the labor cost is reduced (8 persons are reduced to 3 persons), the operation efficiency is improved (24 persons are reduced to 3 persons per day) and the quality stability are improved, and the electromagnetic safety specification of a blasting site is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the blasting technology in the field of mine exploitation, highway, high-speed railway, nuclear power plant construction and the like, in particular to an automatic device of detonating cord initiation cartridge in hard rock mine smooth blasting operation and its construction process. BACKGROUND

[0002] In the process of mine exploitation, explosive blasting operation is an indispensable link, however, due to the destructive and powerful nature of explosives, its use is strictly regulated by the state and operating procedures, especially the detonator of explosives, which is easy to be detonated by pulse current and electromagnetic field, so various electrical equipment and equipment that may generate radio electromagnetic waves are strictly prohibited in the blasting operation site, which leads to the fact that many blasting operation procedures, including smooth blasting operation, are still mainly operated manually.

[0003] In the prior art, smooth blasting operation mainly relies on manual operation, and the specific process includes that in a closed blasting operation area, a detonating cord is pulled out from a winding disc frame to a certain length, aligned with a detonating tube and laid flat, and emulsion explosive is uniformly bound and fixed at certain intervals on the detonating cord by using an insulating explosion-proof special adhesive tape, this manual operation method has the following shortcomings:

[0004] The efficiency is extremely low, a large amount of manual operation is required, and the construction intensity is large;

[0005] The operation quality is greatly affected by the proficiency of the operator and the operation season, especially in cold weather, the process quality is difficult to guarantee. SUMMARY

[0006] In view of the problems existing in the prior art, the present application aims to provide a mine blasting detonating cord initiation cartridge automatic device and construction process, so as to solve the problem that automatic operation cannot be realized due to the fact that electrical equipment and electromagnetic wave generating equipment cannot be used in the blasting operation site, and the problem that the operation quality is greatly different for different operators and different seasons.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] A mine blasting detonating cord initiation cartridge automatic device for hard rock mine smooth blasting, comprising:

[0009] a. Detonating cord winding mechanism: the mechanism includes at least one fixed pulley module, a detonating cord unwinding device, a detonating cord winding device and gears cooperating therewith; the fixed pulley module includes a fixed pulley top cover, a fixed pulley support frame and a pulley for guiding; the detonating cord unwinding device includes a detonating cord reel and a detonating cord support for supplying detonating cord; the detonating cord winding device includes a winding reel base, a winding reel and a winding reel handle for recovering detonating cord; the whole is used for automatically guiding and conveying detonating cord, so that the detonating cord moves at a predetermined path and speed;

[0010] b. Explosive binding mechanism: the mechanism is arranged downstream of the detonating cord winding mechanism and includes one or more binding units, each binding unit including a clamp for clamping emulsion explosive, an emulsion explosive guide rail, an explosive-detonating cord positioning member and a manual adhesive wrapping device; the manual adhesive wrapping device includes an adhesive wrapping handle, a pushing handle, an adhesive tape guide pull rod, an adhesive wrapping device housing, an adhesive wrapping device base, a driving bevel gear, a pushing device pinion, a pushing device gear, a pushing device driven member, a pushing device connecting rod, a connecting rod-moving block connecting member, a pull rod connecting handle, a guide pull rod fixing member, a moving block, a moving block guide rail, an adhesive wrapping disc fixing seat, an auxiliary wheel, an adhesive wrapping disc, an adhesive tape rack, a small synchronous wheel, a synchronous belt and a large synchronous wheel; the binding device realizes adhesive tape wrapping and binding action by manual driving gear and synchronous belt transmission mechanical force, and tightens emulsion explosive to detonating cord;

[0011] c. Control system: the system is used for controlling the operation of the detonating cord winding mechanism and the explosive binding mechanism, including starting, stopping and speed adjustment, and the control system can be a manual operation or an automatic control system, and the device automatically operates through a preset program or instruction;

[0012] d. Safety protection device: the device includes but is not limited to mechanical safety protection and emergency stop device, wherein the mechanical safety protection includes a protective cover and a limit switch, and is used for ensuring safety of an operator and stable operation of equipment.

[0013] A construction process of a mine blasting detonating cord initiation explosive package automatic device includes the following steps:

[0014] a. Preparation stage: detonating cord is loaded on the detonating cord reel of the detonating cord unwinding device, emulsion explosive is placed on the emulsion explosive guide rail, the explosive-detonating cord positioning member is adjusted, the control system and the safety protection device are set, the manual adhesive wrapping device is checked, and the adhesive tape rack is ensured to be loaded with adhesive tape and the adhesive wrapping components are reset;

[0015] b. Starting stage: the control system is started, the winding reel handle of the detonating cord winding device is rotated, the detonating cord winding mechanism is operated, the detonating cord is guided by the fixed pulley module and moves at a predetermined path and speed;

[0016] c. Binding stage: when the detonating cord moves to the preset position, the emulsion explosive is put into the explosive-detonating cord positioning member; the advancing handle is turned to drive the advancing device pinion, gear and driven member, so that the moving block approaches along the guide rail, the belt guide pull rod working end touches the belt; the belt guide pull rod is pulled down, the belt is clamped and wound around the emulsion explosive along the moving block arc-shaped groove, the belt guide pull rod is reset; the advancing handle is reset, so that the guide pull rod working end is reset; the winding handle is turned, the driving bevel gear is driven to the large synchronous gear, the synchronous belt and small synchronous gear drive the winding disc to rotate, the winding of the belt around the detonating cord and the emulsion explosive is completed, the residual belt is cut off, and the initiating explosive package is formed;

[0017] d. Inspection stage: the bound initiating explosive package is inspected to ensure that the binding is firm, the position is accurate, the explosive dosage meets the design requirements, and the manual winding device component reset state is checked at the same time;

[0018] e. Repeat the steps: according to the needs, repeat steps b to d until the binding work of all initiating explosive packages is completed.

[0019] Technical effects and advantages of the present application:

[0020] 1. Increase production: the number of a team can be reduced from 8 to 3, greatly reducing labor costs;

[0021] 2. Improve efficiency: the work load of 24 people per day can be reduced to 3 people per day, significantly improving work efficiency;

[0022] 3. Unified quality: through the precise transmission and positioning of the manual winding device, the process quality of different skilled operators and different seasons is unified to the mechanical operation level, ensuring stable and reliable operation quality;

[0023] 4. Simplify the process: the traditional multi-process is simplified to steps such as "putting emulsion explosive - turning the advancing handle - winding - winding", reducing the operation difficulty and labor intensity;

[0024] 5. High safety: safety protection device and manual mechanical transmission design, avoiding electromagnetic interference risk, meeting the safety specifications of blasting site. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 : overall structure diagram of mine blasting wiring device;

[0026] Figure 2 : schematic diagram of core components of manual winding device;

[0027] Figure 3 : schematic diagram of advancing device and gear cooperation;

[0028] Figure 4 : schematic diagram of moving block and guide rail cooperation;

[0029] Figure 5 : schematic diagram of transmission around the glue disc and the synchronous wheel;

[0030] Figure 6 : schematic diagram of the detonating cord winding device;

[0031] Figure 7 : schematic diagram of the detonating cord unwinding device and the fixed pulley module;

[0032] Figure 8 : construction process flow chart

[0033] Corresponding components of the figure: 1 - glue winding handle, 2 - advancing handle, 3 - glue tape guide pull rod, 4 - glue winding device shell, 5 - glue winding device base, 6 - drive bevel gear, 7 - advancing device pinion, 8 - advancing device gear, 9 - advancing device follower, 10 - connecting rod, 11 - connecting rod - moving block connecting piece, 12 - emulsion explosive guide rail, 13 - pull rod connecting handle, 14 - guide pull rod fixing piece, 15 - moving block, 16 - moving block guide rail, 17 - glue winding disc fixing base, 18 - explosive - detonating cord positioning piece, 19 - auxiliary wheel, 20 - glue winding disc, 21 - glue tape rack, 22 - small synchronous wheel, 23 - synchronous belt, 24 - large synchronous wheel, 25 - winding disc base, 26 - winding disc, 27 - winding disc handle, 28 - detonating cord disc, 29 - detonating cord support, 30 - fixed pulley top cover, 31 - fixed pulley support frame, 32 - pulley. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0035] In the description of the embodiments of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0036] In addition, if the terms "horizontal", "vertical", "suspended" and the like appear, it does not mean that the components must be absolutely horizontal or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0037] In the description of the embodiments of the present application, "a plurality of" represents at least 2.

[0038] In the description of the embodiments of the present application, it should be further pointed out that, unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] The present application provides a mine blasting detonating cord initiation charge automatic device and construction process, characterized by:

[0040] I. Mine blasting detonating cord initiation charge automatic device

[0041] a. Detonating cord wiring mechanism: the mechanism includes a fixed pulley module, a detonating cord pay-off device, a detonating cord take-up device and a matching gear;

[0042] Fixed pulley module: composed of fixed pulley top cover (30), fixed pulley support frame (31) and pulley (32), used for guiding during the movement of detonating cord to avoid deviation of detonating cord;

[0043] Detonating cord pay-off device: containing detonating cord disc (28) and detonating cord support (29), the detonating cord is wound on the detonating cord disc, and the support provides stable support to ensure uniform speed of the detonating cord pay-off;

[0044] Detonating cord take-up device: containing take-up disc base (25), take-up disc (26) and take-up disc handle (27), rotating the handle to drive the take-up disc to rotate, realizing the recovery and tensioning of the detonating cord, and cooperating with the pay-off device to control the movement speed of the detonating cord;

[0045] The gear cooperates with the above-mentioned components, and the detonating cord moves along the predetermined path and speed through the rotating driving force.

[0046] b. Explosive binding mechanism: arranged downstream of the detonating cord wiring mechanism, including a binding unit (containing a clamp, an emulsion explosive guide rail, an explosive-detonating cord positioning element) and a manual glue winding device;

[0047] Clamp: used for clamping emulsion explosive to ensure stable position of the explosive during the binding process;

[0048] Emulsion explosive guide rail (12): used for transporting emulsion explosive, making the explosive reach the matching position with the detonating cord accurately;

[0049] Explosive-detonating cord positioning member (18): defining the relative position of the explosive and the detonating cord, ensuring the binding accuracy;

[0050] Manual gluing device: the core components include a gluing handle (1), a pushing handle (2), a tape guide pull rod (3), a gluing device shell (4), a gluing device base (5), a drive bevel gear (6), a pushing device pinion (7), a pushing device gear (8), a pushing device follower (9), a pushing device connecting rod (10), a connecting rod-moving block connecting member (11), a pull rod connecting handle (13), a guide pull rod fixing member (14), a moving block (15), a moving block guide rail (16), a gluing disc fixing base (17), an auxiliary wheel (19), a gluing disc (20), a tape holder (21), a small synchronous wheel (22), a synchronous belt (23), and a large synchronous wheel (24); through manual driving gear and synchronous belt transmission, the tape can accurately wrap the emulsion explosive and the detonating cord.

[0051] c. Control system: used for controlling the operation of the detonating cord wiring mechanism (such as the winding speed) and the explosive binding mechanism (such as the gluing timing), including starting, stopping, and speed adjustment; it can be a manual operation (such as rotating the winding handle and the gluing handle) or an automatic control system, which realizes the automatic operation of the device through a preset program.

[0052] d. Safety protection device: including mechanical safety protection (such as gluing device shell protection and moving block guide rail limiting) and emergency stop device, used for preventing the operator from accidentally touching the moving parts, ensuring the stable operation of the equipment and the safety of the personnel.

[0053] II. Construction technology

[0054] The construction process using the automatic device comprises the following steps: a. preparation stage: loading the detonating cord into the detonating cord disc (28) of the detonating cord pay-off device, placing the emulsion explosive on the emulsion explosive guide rail (12), adjusting the explosive-detonating cord positioning member (18) to ensure that the position of the explosive and the detonating cord is accurate, checking the manual tape winding device, installing the tape on the tape rack (21), ensuring that each component is reset, and setting the control system and safety protection device. b. start-up stage: starting the control system (manually or automatically), rotating the handle (27) of the take-up disc of the detonating cord take-up device to drive the take-up disc (26) to rotate, guiding the detonating cord through the trolley block module (30-32) to be paid out from the detonating cord disc (28) and moved at a predetermined path and speed. c. binding stage: when the detonating cord moves to the preset position, the emulsion explosive is placed into the explosive-detonating cord positioning member (18); the advancing handle (2) is rotated to drive the pinion gear (7), the gear (8) and the driven member (9) to make the moving block (15) approach along the moving block guide rail (16), and the working end of the tape guide pull rod (3) reaches the tape; the tape guide pull rod (3) is pulled down to clamp the tape together with the guide pull rod fixing member (14) and wrap the emulsion explosive along the arc-shaped groove of the moving block (15); the tape guide pull rod (3) and the advancing handle (2) are reset; the tape winding handle (1) is rotated to drive the large synchronous wheel (24) through the drive bevel gear (6), drive the small synchronous wheel (22) through the synchronous belt (23) to rotate the tape winding disc (20), and complete the winding of the tape around the detonating cord and the emulsion explosive; the residual tape is cut off to form an initiating explosive package. d. inspection stage: the bound initiating explosive package is inspected to ensure that the binding is firm, the position is accurate, the explosive dosage meets the design requirements, and each component of the manual tape winding device is reset and the detonating cord pay-off mechanism is normally operated. e. repeating steps: repeating steps b to d according to the blasting operation requirements until the binding work of all initiating explosive packages is completed. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings:

[0057] The present embodiment provides a mine blasting detonating cord initiating explosive package automatic device and construction process, the core of which is to solve the problem of electromagnetic limitation in the blasting site by manual mechanical transmission + precise positioning member, and realize automatic binding of the initiating explosive package.

[0058] Device installation and debugging

[0059] Installation of the detonating cord routing mechanism: Fix the detonating cord bracket (29) to one side of the work site, install the detonating cord reel (28) on the bracket, pull out one end of the detonating cord and pass through the fixed pulley module (30-32); install the take-up reel (26) on the take-up reel base (25), fix the other end of the detonating cord to the take-up reel (26), adjust the position of the fixed pulley to ensure that the path of the detonating cord is straight.

[0060] Installation of explosive binding mechanism: The manual glue wrapping device is fixed downstream of the detonating cord routing mechanism via the glue wrapping device base (5). The latex explosive guide rail (12) is parallel to the detonating cord path, and the explosive-detonating cord positioning component (18) is aligned directly above the detonating cord. Install the tape rack (21) and the glue wrapping disc (20) to ensure that the synchronous belt (23) connects the large synchronous pulley (24) and the small synchronous pulley (22) for smooth transmission.

[0061] Safety protection device installation: A protective cover is installed on the outside of the outer shell (4) of the wrapper, and limit blocks are set at both ends of the moving block guide rail (16). The emergency stop device is connected to the take-up reel drive component to ensure that the take-up action can be cut off at any time.

[0062] Debugging: Manually rotate the take-up reel handle (27) to check if the detonating cord moves smoothly; rotate the push handle (2) and the wrapping handle (1) to check if the action of the tape guide rod (3) and the wrapping reel (20) is synchronized; adjust the positioning component (18) to ensure that the emulsion explosive and the center of the detonating cord are aligned.

[0063] Construction process execution

[0064] Preparation stage: Arrange the emulsion explosive neatly on the latex explosive guide rail (12), install the tape roll on the tape rack (21), pull out the free end of the tape and fix it to the tape reel (20); the operator wears explosion-proof gloves and checks whether the safety protection device is effective.

[0065] Start-up phase: The operator rotates the take-up reel handle (27), and the detonating cord moves at a speed of 0.5 m / s, maintaining a stable path through the fixed pulley module; when the first binding position of the detonating cord reaches below the positioning piece (18), the take-up stops.

[0066] Binding stage: Place one emulsion explosive into the positioning piece (18), with the explosive and detonating cord perpendicularly attached; rotate the push handle (2) to the limit position, the moving block (15) drives the tape guide rod (3) to touch the tape, pull down the rod (3) to clamp the tape and wrap the explosive once, and reset the rod (3); rotate the push handle (2) in the opposite direction to reset, rotate the wrapping handle (1) 3 times, and drive the tape to wrap the explosive and detonating cord 5 times around the tape disc (20) through the bevel gear (6) and the synchronous belt (23); cut the tape with explosion-proof scissors to complete the binding of one detonating charge.

[0067] Inspection stage: gently pull up the explosive package with hand, confirm that the adhesive tape is not loose; measure the deviation between the center of explosive and the center of detonating cord, ensure ≤2mm; check the winding number of adhesive tape, ensure to meet the design requirement (5±1 turns).

[0068] Repeat stage: continue to rotate the handle (27) of the take-up reel, the detonating cord moves to the next binding position, repeat steps 3-4 until 100 initiation explosive packages are bound (the conventional requirement of single reel detonating cord).

[0069] In this embodiment, the mechanical transmission design of the manual adhesive winding device avoids the risk of electromagnetic interference, and the positioning member and the guide rail ensure the binding accuracy; the operation efficiency is 8 times higher than that of the traditional manual operation, the labor cost is reduced by 62.5%, and in a severe cold environment of-15℃, the qualified rate of the binding quality still remains more than 98%, and the seasonal influence problem is solved.

[0070] In summary, the device and process provided by the present application take into account the safety specifications and automation requirements of the blasting site, and have wide engineering application value.

[0071] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution can be designed, which should belong to the protection scope of the present application.

Claims

1. An automatic device for initiating detonating cord charges in mining blasting, used for smooth blasting in hard rock mines, characterized in that, include: a. Detonating cord routing mechanism: This mechanism includes at least one fixed pulley module, a detonating cord releasing device, a detonating cord retracting device, and gears that cooperate with them; the fixed pulley module includes a fixed pulley top cover, a fixed pulley support frame, and a pulley for guiding; the detonating cord releasing device includes a detonating cord reel and a detonating cord bracket for supplying the detonating cord; the detonating cord retracting device includes a reel base, a reel, and a reel handle for retrieving the detonating cord; the whole mechanism is used to automatically guide and transport the detonating cord, so that the detonating cord moves along a predetermined path and speed; b. Explosive Binding Mechanism: This mechanism is located downstream of the detonating cord routing mechanism and includes one or more binding units. Each binding unit contains a clamp for holding the emulsion explosive, an emulsion explosive guide rail, an explosive-detonating cord positioning component, and a manual adhesive wrapping device. The manual adhesive wrapping device includes an adhesive wrapping handle, a push handle, a tape guide rod, an adhesive wrapper housing, an adhesive wrapper base, a drive bevel gear, a push device pinion, a push device gear, a push device driven component, a push device connecting rod, a connecting rod-moving block connector, a pull rod connecting handle, a guide rod fixing component, a moving block, a moving block guide rail, an adhesive wrapping reel fixing seat, an auxiliary wheel, an adhesive wrapping reel, a tape holder, a small synchronous pulley, a synchronous belt, and a large synchronous pulley. The binding device uses the mechanical force transmitted by the manually driven gear and synchronous belt to achieve the tape wrapping action, securing the emulsion explosive to the detonating cord. c. Control system: This system is used to control the operation of the detonating cord routing mechanism and the explosive binding mechanism, including start-up, stop and speed adjustment. The control system can be a manual operation or an automatic control system, which realizes the automatic operation of the device through preset programs or instructions. d. Safety protection devices: These devices include, but are not limited to, mechanical safety protection and emergency shutdown devices, wherein mechanical safety protection includes protective covers and limit switches, which are used to ensure the safety of operators and the stable operation of equipment.

2. A construction process using the automatic device for initiating detonating cords and explosive charges in mine blasting as described in claim 1, characterized in that, Includes the following steps: a. Preparation stage: Load the detonating cord onto the detonating cord reel of the detonating cord release device, place the emulsion explosive on the emulsion explosive guide rail, adjust the explosive-detonating cord positioning component, set up the control system and safety protection device, check the manual tape wrapping device, and ensure that the tape rack loading and tape wrapping components are reset. b. Start-up phase: Start the control system, turn the take-up reel handle of the detonating cord take-up device to make the detonating cord routing mechanism run, and the detonating cord is guided by the fixed pulley module to move along the predetermined path and speed; c. Binding Stage: When the detonating cord moves to the preset position, emulsion explosive is placed into the explosive-detonating cord positioning component; the propulsion handle is rotated to drive the small gear, large gear, and driven component of the propulsion device, causing the moving block to approach along the guide rail, and the working end of the tape guide rod touches the tape; the tape guide rod is pulled down to clamp the tape and wrap the emulsion explosive along the arc groove of the moving block, and the tape guide rod is reset; the propulsion handle is reset to reset the working end of the guide rod; the wrapping handle is rotated to drive the bevel gear to the large synchronous pulley, which in turn drives the wrapping disc to rotate via the synchronous belt and small synchronous pulley, completing the wrapping of the tape around the detonating cord and emulsion explosive, cutting off the remaining tape, and forming the detonating charge; d. Inspection phase: Inspect the tied detonating charge to ensure that it is securely tied, accurately positioned, and that the amount of explosive meets the design requirements. At the same time, check the reset status of the manual adhesive wrapping device components. e. Repeat steps: Repeat steps b to d as needed until all detonation charges are secured.

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