Granular ammonium nitrate fuel oil explosive on-site mixing and charging truck mixing control method

Abstract

The invention relates to the technical field of blast hole blasting, in particular to an explosive mixing control method for a granular ammonium nitrate fuel oil explosive on-site mixed loading truck, which comprises the following steps of: connecting one end of an external cable with an explosive loading start-stop input point of an operation wire PLC (Programmable Logic Controller) control system in a driver, and then connecting the other end of the cable with a start-stop device in a junction box; the junction box is connected to the base, firstly, a button of the control box in a driver is used for making explosives away, after making is completed, the base is moved to the position close to the spiral discharging opening, an operator treads the pedal body with feet and observes the feeding amount of the blast hole at the same time, and therefore feeding stopping can be conducted on the blast hole in time, and waste of the explosives is avoided. Only one operator is needed to complete the filling work of the blast hole, so that the efficiency is high, and the labor intensity and the labor cost can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of blasthole blasting, and in particular to a method for controlling the mixing of granular ammonium nitrate oil explosives in an on-site mixing vehicle. Background Art

[0002] Porous granular ammonium oil explosive is a kind of industrial explosive without detonator sensitivity, which is made of porous granular ammonium nitrate as the main component and a certain proportion of light diesel oil. The main working principle of the on-site mixing vehicle of porous ammonium oil explosive is: the mixing vehicle is loaded with porous granular ammonium nitrate and diesel oil, drives into the blasting site, and mixes them thoroughly through the on-board mixing system and then loads them into the blasthole. The on-site mixing vehicle of ammonium oil explosive is fully hydraulically driven. The hydraulic oil pump is driven by the on-board engine through the power take-off. The oil pump provides pressure oil to drive the hydraulic motor and hydraulic cylinder. The operator can control the operation of each device through the control buttons and touch screen on the operating box. Control the mixing spiral to raise, lower, move out, move in and start and stop the rotation, and align the mixing spiral discharge port with the blasthole to be loaded.

[0003] Since the operation box and the vehicle-mounted control system are all installed in the cab, the operator cannot observe the filling amount of the blasthole, resulting in excessive filling amount of the blasthole and waste of explosives. Therefore, based on this method, an operator is added outside to observe the filling amount of the blasthole. However, this method is not only inefficient, but also the operator outside needs to shout loudly or use gestures to indicate to the operator in the cab, which increases the labor intensity of the operator. Therefore, there is an urgent need for a mixing control method for a granular ammonium oil explosive on-site mixing vehicle, which only requires one operator to complete the filling work of the blasthole, which is not only efficient but also reduces labor intensity and labor costs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method for controlling the mixing of granular ammonium oil explosives by an on-site mixing vehicle, which only requires one operator to complete the filling of the blasthole, which is not only efficient but also can reduce labor intensity and labor costs.

[0005] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is: a kind of granular ammonium oil explosive on-site mixing vehicle mixing control method, based on the mixing control device, the drug delivery device comprises an operation box, a base, a pedal body, a fixed seat, a rotating shaft, an elastic mechanism and a junction box in the driving room, the operation box is provided with buttons, the buttons comprise a diesel pump, an oblique spiral, a raising / lowering, a mixing spiral, a quantitative spiral, a cooling fan, a swing in / out, a power switch and a charging start and stop, the fixed seat is connected to the base, the rotating shaft is rotatably connected to the fixed seat, and the rotating shaft is in the Y direction, One end of the pedal body is fixedly connected to the rotating shaft, the elastic mechanism is located between the pedal body and the bottom plate, the elastic mechanism is used to reset the pedal body, the junction box is connected to the base, a through hole is provided in the junction box, one end of the rotating shaft passes through the through hole and is located in the junction box, the junction box is circular, the rotating shaft is coaxial with the junction box, a start-stop device is provided in the junction box, the start-stop device is connected to the charge start-stop input point of the PLC control system in the operating box in the driving room through a cable, a trigger point is provided on the start-stop device, one end of the through hole through which the rotating shaft passes is provided with a copper sheet, and the copper sheet is located in the junction box;

[0006] In a certain state, the pedal body swings downward, and the copper sheet abuts against the trigger point of the start-stop device, so that the start-stop device is turned on and the gun hole is dosed;

[0007] The drug mixing control method includes the following steps:

[0008] Step 1: Turn on the power switch, rotate the button so that the button pointer points to "up", press the mixing screw button, lift the mixing screw to a certain height, reset the pointer, stop the mixing screw lifting cylinder, and then rotate the button so that the button pointer points to "swing out", swing the mixing screw to a proper angle to align with the blast hole, then reset the pointer, rotate the button, the pointer points to "down", and lower the mixing screw to the proper position of the blast hole;

[0009] Step 2: Press the cooling fan, diesel pump, mixing screw, oblique screw and quantitative screw control buttons in sequence, the drug mixing equipment starts, and the drug making is completed after the equipment speed returns to normal;

[0010] Step 3: Take out the cable, place the base on the ground beside the spiral discharge port, connect one end of the cable to the start-stop device in the junction box, and the other end of the cable to the charging start-stop input point of the PLC control system in the operating box in the cab;

[0011] Step 4: The operator steps on the pedal body to swing the pedal body downward to drive the rotating shaft to rotate, so that the copper sheet abuts against the trigger point of the start-stop device, so that the cable is connected, the charge start-stop is turned on, and the blast hole is dosed;

[0012] Step 5: The operator observes the amount of medicine dosed in the blast hole, and then lifts his foot in time. The elastic mechanism resets the pedal body, and the rotating shaft rotates, so that the copper sheet is away from the trigger point of the start-stop device, the cable is disconnected, the charge start-stop is closed, and the dosing of medicine to the blast hole is stopped.

[0013] Further, a method for controlling the mixing of granular ammonium oil explosives on-site mixing vehicles also includes filling a mixing spiral pipeline, the mixing spiral pipeline includes a rectangular pipeline, a valve device is arranged in the rectangular pipeline, the valve device includes a first rotating shaft, a second rotating shaft and a third rotating shaft, the axial directions of the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel and perpendicular to the axial direction of the pipeline, a first rectangular disc is arranged on the first rotating shaft, a second rectangular disc is arranged on the second rotating shaft, and a third rectangular disc is arranged on the third rotating shaft. The start-stop device includes a start-stop column and three valve switch columns, a trigger point is arranged on the start-stop column, the start-stop column is connected to the charge start-stop input point of the PLC control system in the operating box in the driving room through a cable, the three valve switch columns are all provided with trigger points, and the three valve switch columns are respectively electrically connected to the driving devices of the first rotating shaft, the second rotating shaft and the third rotating shaft through cables, the shape of the copper sheet is an arc, and the copper sheet switches between the first state, the second state, the third state and the fourth state;

[0014] In the first state, the pedal body does not move, the shaft does not rotate, the copper sheet does not abut against the three valve switch columns of the start-stop column box, the start-stop device does not start, and the three rectangular discs are closed;

[0015] In the second state, the pedal body swings downward, the rotating shaft rotates a certain angle, the copper sheet abuts against the start-stop column and a valve switch column, the first rectangular disc opens, and the start-stop device opens;

[0016] In the third state, the pedal body swings downward, the rotating shaft rotates a certain angle, the copper sheet abuts against the start-stop column and the two valve switch columns, the first rectangular disc and the second rectangular disc open, and the start-stop device is turned on;

[0017] In the fourth state, the pedal body swings downward, the rotating shaft rotates a certain angle, the copper sheet abuts against the start-stop column and the three valve switch columns, the first rectangular disc, the second rectangular disc and the third rectangular disc are opened, and the start-stop device is turned on.

[0018] Further, the elastic mechanism includes a first spring, a second spring and a third spring, one end of the first spring is connected to the base, the other end of the first spring is connected to the lower part of the pedal body on one side in the X direction, one end of the second spring is connected to the bottom plate, the height of the second spring is less than the height of the first spring, the second spring is coaxial with the first spring, one end of the third spring is connected to the bottom plate, and the height of the third spring is less than the height of the second spring;

[0019] In the first state, none of the three springs are compressed;

[0020] In the second state, the first spring is compressed;

[0021] In the third state, the first spring and the second spring are compressed;

[0022] In the fourth state, the three springs are compressed simultaneously.

[0023] Further, the radius of the first spring is larger than that of the second spring, and the radius of the second spring is larger than that of the third spring.

[0024] Furthermore, the start-stop column and three valve switch columns are located on the X-side of the junction box. Four openings are provided on the outer circumference of the X-side of the junction box, one of which is used for the start-stop cable to pass through, and the other three openings are used for the cables of the valve switch columns to pass through.

[0025] The beneficial effects of the present invention are as follows: through an external cable, one end of the cable is connected to the input point of the charging start and stop of the PLC control system of the operating line in the cab, and then the other end of the cable is connected to the start and stop device in the junction box, the junction box is connected to the base, and the button of the control box in the cab is first used to move away from the medicine making, and after the medicine making is completed, the base is moved to the vicinity of the spiral discharge port, and the operator observes the dosage of the blast hole while stepping on the pedal body, so that the dosage of the blast hole can be stopped in time to avoid wasting explosives. Compared with the prior art, only one operator is needed to complete the filling work of the blast hole, which is not only efficient but also reduces labor intensity and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a foot-operated control device for a mixing system of a granular ammonium nitrate oil explosive on-site mixing vehicle in accordance with a specific embodiment of the present invention;

[0027] Figure 2 A schematic structural diagram of a rectangular pipeline of a foot-operated control device for a mixing system of a granular ammonium nitrate oil explosive on-site mixing vehicle in accordance with the present invention;

[0028] Figure 3 The three rectangular discs of the rectangular pipe are in the open state;

[0029] Figure 4 The first rectangular disc and the second rectangular disc of the rectangular pipe are in an open state;

[0030] Figure 5 The state where the first rectangular disc of the rectangular pipe is open.

[0031] Description of labels:

[0032] 1. Pedal body;

[0033] 2. Base;

[0034] 3. Fixed seat;

[0035] 4. Rotating shaft; 41. Copper sheet;

[0036] 5. Elastic mechanism; 51. First spring; 52. Second spring; 53. Third spring;

[0037] 6. Junction box; 61. Through hole; 62. Start-stop device; 621. Start-stop column; 622. Valve switch column; 63. Opening;

[0038] 7. Rectangular pipe; 71. Valve device; 711. First rotating shaft; 7111. First rectangular disc; 712. Second rotating shaft; 7121. Second rectangular disc; 713. Third rotating shaft; 7131. Third rectangular disc. DETAILED DESCRIPTION

[0039] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0040] Please refer to Figures 1 to 5 A mixing control method for a granular ammonium oil explosive on-site mixing vehicle is based on a mixing control device. The drug delivery device includes an operation box in a cab, a base 2, a pedal body 1, a fixed seat 3, a rotating shaft, an elastic mechanism 5 and a junction box 6. The operation box is provided with buttons, and the buttons include a diesel pump, an inclined spiral, a lifting / lowering, a mixing spiral, a quantitative spiral, a cooling fan, a swing in / out, a power switch and a charging start and stop. The fixed seat 3 is connected to the base 2, and the rotating shaft is rotatably connected to the fixed seat 3. The rotating shaft is in the Y direction. One end of the pedal body 1 is fixedly connected to the rotating shaft. The elastic mechanism 5 Located between the pedal body 1 and the bottom plate, the elastic mechanism 5 is used for resetting the pedal body 1, the junction box 6 is connected to the base 2, a through hole 61 is provided in the junction box 6, one end of the rotating shaft passes through the through hole 61 and is located in the junction box 6, the junction box 6 is circular, the rotating shaft is coaxial with the junction box 6, a start-stop device 62 is provided in the junction box 6, the start-stop device 62 is connected to the charge start-stop input point of the PLC control system in the operating box in the driving room through a cable, a trigger point is provided on the start-stop device 62, and a copper sheet 41 is provided at one end of the through hole 61 through which the rotating shaft 4 passes, and the copper sheet 41 is located in the junction box 6;

[0041] In a certain state, the pedal body 1 swings downward, and the copper sheet 41 abuts against the trigger point of the start-stop device 62, so that the start-stop device 62 is turned on and the blast hole is dosed;

[0042] The drug mixing control method includes the following steps:

[0043] Step 1: Turn on the power switch, rotate the button so that the button pointer points to "up", press the mixing screw button, lift the mixing screw to a certain height, reset the pointer, stop the mixing screw lifting cylinder, and then rotate the button so that the button pointer points to "swing out", swing the mixing screw to a proper angle to align with the blast hole, then reset the pointer, rotate the button, the pointer points to "down", and lower the mixing screw to the proper position of the blast hole;

[0044] Step 2: Press the cooling fan, diesel pump, mixing screw, oblique screw and quantitative screw control buttons in sequence, the drug mixing equipment starts, and the drug making is completed after the equipment speed returns to normal;

[0045] Step 3: Take out the cable, place the base 2 on the ground beside the spiral discharge port, connect one end of the cable to the start-stop device 62 in the junction box 6, and connect the other end of the cable to the charging start-stop input point of the PLC control system in the operating box in the cab;

[0046] Step 4: The operator steps on the pedal body 1 to swing the pedal body 1 downward to drive the rotating shaft 4 to rotate, so that the copper sheet 41 abuts against the trigger point of the start-stop device 62, so that the cable is connected, the charge start-stop is turned on, and the blast hole is dosed;

[0047] Step 5: The operator observes the dosage of the blast hole and then lifts his foot in time, the elastic mechanism 5 resets the pedal body 1, and the rotating shaft 4 rotates, so that the copper sheet 41 is away from the trigger point of the start-stop device 62, the cable is disconnected, the charging start-stop is closed, and the dosage to the blast hole is stopped.

[0048] Preferably, a pedal control device for a mixing system of a granular ammonium oil explosive on-site mixing vehicle also includes a mixing spiral pipeline, the mixing spiral pipeline includes a rectangular pipeline 7, a valve device 71 is provided in the rectangular pipeline 7, the valve device 71 includes a first rotating shaft 711, a second rotating shaft 712 and a third rotating shaft 713, the axial directions of the first rotating shaft 711, the second rotating shaft 712 and the third rotating shaft 713 are parallel and perpendicular to the axial direction of the pipeline, the first rotating shaft 711 is provided with a first rectangular disc 7111, the second rotating shaft 712 is provided with a second rectangular disc 7121, and the third rotating shaft 713 is provided with a third rectangular disc 713. shaped disc 7131, the start-stop device 62 includes a start-stop column 621 and three valve switch columns 622, a trigger point is provided on the start-stop column 621, the start-stop column 621 is connected to the charge start-stop input point of the PLC control system in the operating box in the driving room through a cable, and the three valve switch columns 622 are all provided with a trigger point, and the three valve switch columns 622 are respectively electrically connected to the driving devices of the first rotating shaft 711, the second rotating shaft 712 and the third rotating shaft 713 through cables, and the shape of the copper sheet 41 is arc-shaped, and the copper sheet 41 switches between the first state, the second state, the third state and the fourth state;

[0049] In the first state, the pedal body 1 does not move, the shaft does not rotate, the copper sheet 41 does not abut against the start-stop column 621 and the three valve switch columns 622, the start-stop device 62 does not start, and the three rectangular discs are closed;

[0050] In the second state, the pedal body 1 swings downward, the shaft rotates a certain angle, the copper sheet 41 abuts against the start-stop column 621 and a valve switch column 622, the first rectangular disc 7111 opens, and the start-stop device 62 opens;

[0051] In the third state, the pedal body 1 swings downward, the shaft rotates a certain angle, the copper sheet 41 abuts against the start-stop column 621 and the two valve switch columns 622, the first rectangular disc 7111 and the second rectangular disc 7121 are opened, and the start-stop device 62 is turned on;

[0052] In the fourth state, the pedal body 1 swings downward, the rotating shaft rotates a certain angle, the copper sheet 41 abuts against the start-stop column 621 and the three valve switch columns 622, the first rectangular disc 7111, the second rectangular disc 7121 and the third rectangular disc 7131 are opened, and the start-stop device 62 is opened.

[0053] Preferably, the elastic mechanism 5 includes a first spring 51, a second spring 52 and a third spring 53, one end of the first spring 51 is connected to the base 2, the other end of the first spring 51 is connected to the lower part of the X-direction side of the pedal body 1, one end of the second spring 52 is connected to the bottom plate, the height of the second spring 52 is less than the height of the first spring 51, the second spring 52 is coaxial with the first spring 51, one end of the third spring 53 is connected to the bottom plate, and the height of the third spring 53 is less than the height of the second spring 52;

[0054] In the first state, none of the three springs are compressed;

[0055] In the second state, the first spring 51 is compressed;

[0056] In the third state, the first spring 51 and the second spring 52 are compressed;

[0057] In the fourth state, the three springs are compressed simultaneously.

[0058] Preferably, the radius of the first spring 51 is greater than that of the second spring 52 , and the radius of the second spring 52 is greater than that of the third spring 53 .

[0059] Preferably, the start-stop column 621 and the three valve switch columns 622 are located on the X-side of the junction box 6, and four openings 63 are provided on the outer circumference of the X-side of the junction box 6, one opening 63 is used for the start-stop cable to pass through, and the other three openings 63 are used for the cables of the valve switch columns 622 to pass through.

[0060] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for controlling the mixing of granular ammonium oil-fuel mixture on site in a mixing vehicle, It is characterized in that Based on the drug mixing control device, the drug delivery device includes an operation box in the cab, a base, a pedal body, a fixed seat, a rotating shaft, an elastic mechanism and a junction box. The operation box is provided with buttons, and the buttons include a diesel pump, an inclined screw, a lifting / lowering, a mixing screw, a quantitative screw, a cooling fan, a swing in / out, a power switch and a drug charging start and stop. The fixed seat is connected to the base, and the rotating shaft is rotatably connected to the fixed seat. The rotating shaft is in the Y direction, and one end of the pedal body is fixedly connected to the rotating shaft. The elastic mechanism is located between the pedal body and the bottom plate, and the elastic mechanism is used for resetting the pedal body. The junction box is connected to the base, and a through hole is provided in the junction box. One end of the rotating shaft passes through the through hole and is located in the junction box. The junction box is circular, and the rotating shaft is coaxial with the junction box. A start-stop device is provided in the junction box. The start-stop device is connected to the drug charging start-stop input point of the PLC control system in the operation box in the cab through a cable. A trigger point is provided on the start-stop device, and a copper sheet is provided at one end of the through hole through which the rotating shaft passes, and the copper sheet is located in the junction box. In a certain state, the pedal body swings downward, and the copper sheet abuts against the trigger point of the start-stop device, so that the start-stop device is turned on and the gun hole is dosed; The drug mixing control method includes the following steps: Step 1: Turn on the power switch, rotate the button so that the button pointer points to "up", press the mixing screw button, lift the mixing screw to a certain height, reset the pointer, stop the mixing screw lifting cylinder, and then rotate the button so that the button pointer points to "swing out", swing the mixing screw to a proper angle to align with the blast hole, then reset the pointer, rotate the button, the pointer points to "down", and lower the mixing screw to the proper position of the blast hole; Step 2: Press the cooling fan, diesel pump, mixing screw, oblique screw and quantitative screw control buttons in sequence, the drug mixing equipment starts, and the drug making is completed after the equipment speed returns to normal; Step 3: Take out the cable, place the base on the ground beside the spiral discharge port, connect one end of the cable to the start-stop device in the junction box, and the other end of the cable to the charging start-stop input point of the PLC control system in the operating box in the cab; Step 4; The operator steps on the pedal body to swing the pedal body downward to drive the rotating shaft to rotate, so that the copper sheet abuts against the trigger point of the start-stop device, so that the cable is connected, the charge start-stop is turned on, and the blast hole is dosed; Step 5: The operator observes the amount of medicine dosed in the blast hole, and then lifts his foot in time. The elastic mechanism resets the pedal body, and the rotating shaft rotates, so that the copper sheet is away from the trigger point of the start-stop device, the cable is disconnected, the charge start-stop is closed, and the dosing of medicine to the blast hole is stopped.

2. a kind of granular ammonium oil-fuel mixture on-site mixed loading vehicle mixing control method according to claim 1, It is characterized in that A method for controlling the mixing of granular ammonium oil explosive on-site mixing vehicles also includes filling a mixing spiral pipeline, the mixing spiral pipeline includes a rectangular pipeline, a valve device is arranged in the rectangular pipeline, the valve device includes a first rotating shaft, a second rotating shaft and a third rotating shaft, the axial directions of the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel and perpendicular to the axial direction of the pipeline, a first rectangular disc is arranged on the first rotating shaft, a second rectangular disc is arranged on the second rotating shaft, and a third rectangular disc is arranged on the third rotating shaft, a start-stop device includes a start-stop column and three valve switch columns, a trigger point is arranged on the start-stop column, the start-stop column is connected to a charge start-stop input point of a PLC control system in an operating box in a driving room through a cable, the three valve switch columns are all provided with trigger points, the three valve switch columns are respectively electrically connected to the driving devices of the first rotating shaft, the second rotating shaft and the third rotating shaft through the cable, the shape of the copper sheet is an arc, and the copper sheet switches between a first state, a second state, a third state and a fourth state; In the first state, the pedal body does not move, the shaft does not rotate, the copper sheet does not abut against the three valve switch columns of the start-stop column box, the start-stop device does not start, and the three rectangular discs are closed; In the second state, the pedal body swings downward, the rotating shaft rotates a certain angle, the copper sheet abuts against the start-stop column and a valve switch column, the first rectangular disc opens, and the start-stop device opens; In the third state, the pedal body swings downward, the rotating shaft rotates a certain angle, the copper sheet abuts against the start-stop column and the two valve switch columns, the first rectangular disc and the second rectangular disc open, and the start-stop device is turned on; In the fourth state, the pedal body swings downward, the rotating shaft rotates a certain angle, the copper sheet abuts against the start-stop column and the three valve switch columns, the first rectangular disc, the second rectangular disc and the third rectangular disc are opened, and the start-stop device is turned on.

3. a kind of granular ammonium oil-fuel mixture on-site mixed loading vehicle mixing control method according to claim 2, It is characterized in that The elastic mechanism includes a first spring, a second spring and a third spring, one end of the first spring is connected to the base, the other end of the first spring is connected to the lower part of the pedal body on one side in the X direction, one end of the second spring is connected to the bottom plate, the height of the second spring is less than the height of the first spring, the second spring is coaxial with the first spring, one end of the third spring is connected to the bottom plate, and the height of the third spring is less than the height of the second spring; In the first state, none of the three springs are compressed; In the second state, the first spring is compressed; In the third state, the first spring and the second spring are compressed; In the fourth state, the three springs are compressed simultaneously.

4. a kind of granular ammonium nitrate oil explosive on-site mixed loading vehicle mixed medicine control method according to claim 3, It is characterized in that The first spring has a radius greater than that of the second spring, and the radius of the second spring has a radius greater than that of the third spring.

5. according to a kind of granular ammonium nitrate oil explosive on-site mixed loading vehicle mixed medicine control method of claim 2, It is characterized in that The start-stop column and three valve switch columns are located on the X-side of the junction box. Four openings are provided on the outer circumference of the X-side of the junction box, one of which is used for the start-stop cable to pass through, and the other three openings are used for the cables of the valve switch columns to pass through.

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