Emulsion explosive sympathetic detonation prevention safety control device

Abstract

The utility model discloses an emulsion explosive sympathetic detonation prevention safety control device which comprises a conveying belt conveyor, a buffering belt conveyor, an explosion-proof belt conveyor and a controller which are sequentially arranged in the conveying direction, and the conveying belt conveyor, the buffering belt conveyor and the explosion-proof belt conveyor are sequentially connected end to end. A distance detection sensor set is arranged on the buffering belt conveyor, a trigger sensor is arranged at the starting end of the explosion-proof belt conveyor, and the controller is in signal connection with the distance detection sensor set, the trigger sensor and the buffering belt conveyor. The trigger sensor is arranged at the starting end of the explosive-proof belt conveyor, and the interval detection sensor group is arranged on the buffer belt conveyor, so that the interval of the explosive bags on the explosive-proof belt conveyor is adjusted in real time, and the problem that the interval is out of control due to equipment abnormity or productivity fluctuation in a traditional fixed speed mode is solved; reliable control over the sympathetic detonation prevention safety distance is achieved, and the related technical requirements of the industry for the sympathetic detonation prevention safety distance are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to emulsion explosive production equipment technical field especially relates to a kind of emulsion explosive anti-cascade explosion safety control device. BACKGROUND

[0002] In the production of emulsion explosive, accidental combustion or explosion of single product can trigger the chain reaction of adjacent products by energy forms such as heat radiation, shock wave or high-speed fragments, so as a production and conveying equipment of emulsion explosive, it needs to have reliable anti-cascade explosion capability. However, with the demand for capacity expansion brought by the expansion of production scale, when the output density of finished products per unit time increases, the distance between products presents a nonlinear compression trend, at this time, if the equipment has abnormal operation (such as mechanical transmission fluctuation, bagging mechanism jam or power system disturbance), it will cause instantaneous finished product accumulation, which is less than the anti-cascade explosion distance, so the traditional emulsion explosive production and conveying device is difficult to meet the safety production demand under certain conditions. SUMMARY

[0003] The utility model aims at providing a kind of emulsion explosive anti-cascade explosion safety control device to solve one or more technical problems in the above background technology.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A kind of emulsion explosive anti-cascade explosion safety control device, including the sequentially arranged conveying belt machine, buffer belt machine, explosion-proof belt machine and controller along the conveying direction, the conveying belt machine, the buffer belt machine and the explosion-proof belt machine are sequentially connected head to tail, the buffer belt machine is equipped with spacing detection sensor group, the beginning of the explosion-proof belt machine is equipped with trigger sensor, the controller is respectively connected with spacing detection sensor group, trigger sensor and buffer belt machine signal;

[0006] When the trigger sensor detects that the beginning of the explosion-proof belt machine has bag passed, if spacing detection sensor group synchronously detects that there is bag on the buffer belt machine, controller generates stop command to the buffer belt machine, so that the buffer belt machine pauses running for a preset time, and then the controller makes the buffer belt machine restart running.

[0007] Preferably, a safety isolation sensor is further included, which is arranged on the explosion-proof belt conveyor; when the safety isolation sensor detects that a medicine bag passes, the safety isolation sensor sends a running signal to the controller, and the controller restarts the running of the buffer belt conveyor.

[0008] Preferably, the spacing detection sensor group includes at least three detection sensors, and the plurality of detection sensors are arranged equidistantly on the buffer belt conveyor along the conveying direction.

[0009] Preferably, the trigger sensor, the safety isolation sensor and the spacing detection sensor group all adopt photoelectric reflection sensors.

[0010] Preferably, an encoder is further included, an input end of the encoder is coaxially connected with a pulley of the explosion-proof belt conveyor, and an output end of the encoder is signal-connected with the controller.

[0011] Preferably, the explosion-proof belt conveyor has a reduction ratio of 10, a linear speed of 1.04 m / s and a length of 10 m.

[0012] Preferably, the buffer belt conveyor has a reduction ratio of 20, a linear speed of 0.52 m / s and a length of 5 m.

[0013] Preferably, the conveying belt conveyor has a reduction ratio of 20, a linear speed of 0.52 m / s and a length of 5 m.

[0014] Compared with the prior art, the utility model has the beneficial effects that: through setting a trigger sensor at the initial end of the explosion-proof belt conveyor and setting a spacing detection sensor group on the buffer belt conveyor, real-time adjustment of the spacing of medicine bags on the explosion-proof belt conveyor is realized; when the trigger sensor and the spacing detection sensor group simultaneously detect products, that is, when the spacing between adjacent medicine bags has a compression trend, the buffer belt conveyor is restarted after being paused, so that the distance between the front and rear medicine bags is increased to maintain the anti-detonation safety distance; the spacing out-of-control problem caused by equipment abnormalities or production capacity fluctuations in the traditional fixed speed mode is solved; reliable control of the anti-detonation safety distance is realized; and the related technical requirements of the industry on the anti-detonation safety distance are met. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings further illustrate the utility model, but the contents in the drawings do not constitute any limitation on the utility model.

[0016] Figure 1 It is the overall structure schematic view of one embodiment of the utility model;

[0017] Figure 2 It is the schematic view of one embodiment of the utility model when multiple medicine bags exist on the buffer belt conveyor.

[0018] Wherein: the conveying belt machine 1, the buffer belt machine 2, the explosion-proof belt machine 3, the interval detection sensor group 4, the trigger sensor 5, the safety isolation sensor 6, the detection sensor 41, the medicine bag 10, the bag quality detection device 7, the bag quality detection and rejection device 8, and the code spraying quality detection device 9. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be further illustrated below with reference to the drawings and through specific embodiments.

[0020] The emulsion explosive anti-cascade explosion safety control device of the embodiment, referring to the accompanying Figure 1 And 2 , comprising conveying belt machine 1, buffer belt machine 2, explosion-proof belt machine 3 and controller arranged in sequence along the conveying direction, the conveying belt machine 1, the buffer belt machine 2 and the explosion-proof belt machine 3 are connected in sequence, the buffer belt machine 2 is provided with interval detection sensor 41, the beginning of the explosion-proof belt machine 3 is provided with trigger sensor 5, and the controller is signal-connected with interval detection sensor group 4, trigger sensor 5 and buffer belt machine 2 respectively;

[0021] When the trigger sensor 5 detects that the beginning of the explosion-proof belt machine 3 has a medicine bag 10 passing, if the interval detection sensor group 4 synchronously detects that there is a medicine bag 10 on the buffer belt machine 2, the controller generates a stop command to the buffer belt machine 2, so that the buffer belt machine 2 pauses for a preset time, and then the controller makes the buffer belt machine 2 restart running until the medicine bag 10 in the detection area of the trigger sensor 5 moves to the anti-cascade explosion safety distance.

[0022] By setting the trigger sensor 5 at the beginning of the explosion-proof belt machine 3 and the interval detection sensor group 4 on the buffer belt machine 2, the interval of the medicine bag 10 on the explosion-proof belt machine 3 is adjusted in real time, when the trigger sensor 5 and the interval detection sensor group 4 detect the product at the same time, that is, when the interval between adjacent medicine bags 10 has a compression trend, the buffer belt machine 2 is paused and then restarted, so that the distance between the front and rear medicine bags 10 is increased to maintain the anti-cascade explosion safety distance, solving the problem of out-of-control interval caused by equipment abnormalities or production capacity fluctuations in the traditional fixed speed mode, realizing reliable control of the anti-cascade explosion safety distance, and meeting the relevant technical requirements of the industry on the anti-cascade explosion safety distance.

[0023] Preferably, the safety isolation sensor 6 is further included, and the safety isolation sensor 6 is arranged on the explosion-proof belt machine 3; when the safety isolation sensor 6 detects that a medicine bag 10 passes, the safety isolation sensor 6 sends a running signal to the controller, and the controller makes the buffer belt machine 2 restart running.

[0024] The safety isolation sensor 6 is arranged on the explosion-proof belt conveyor 3 at a position which is greater than the propagation distance from the start end, and when the trigger sensor 5 and the distance detection sensor group 4 simultaneously detect that the medicine bag 10 passes, the controller generates a stop command to the buffer belt conveyor 2, and then the medicine bag 10 moves to the position of the safety isolation sensor 6 (i.e. reaches the preset anti-propagation distance), and the controller restarts the operation of the buffer belt conveyor 2. Thus, by arranging the safety isolation sensor 6 to detect the arrival of the medicine bag 10 at the anti-propagation position, the controller can further adjust the start-stop state of the buffer belt conveyor 2 based on the signal of the safety isolation sensor 6 on the basis of temporarily stopping the operation of the buffer belt conveyor 2 for a preset time, and ensures that the medicine bag 10 moves to the safety distance before restarting the buffer belt conveyor 2.

[0025] Preferably, the distance detection sensor group 4 includes at least three detection sensors 41, and the plurality of detection sensors 41 are arranged at equal intervals on the buffer belt conveyor 2 along the conveying direction. By arranging at least three detection sensors 41 at equal intervals on the buffer belt conveyor 2, when any detection sensor 41 is triggered, it can be determined that the equipment may have abnormal operation to make the finished product less than the anti-propagation distance, and the identification of the medicine bag 10 on the buffer belt conveyor 2 is ensured.

[0026] Preferably, the trigger sensor 5, the safety isolation sensor 6 and the distance detection sensor group 4 all adopt photoelectric reflection sensors. The photoelectric reflection sensor detects the medicine bag 10 by blocking the light beams of the emitting end and the receiving end, so that the position of the medicine bag 10 is detected by a non-contact detection method, and the change of the position of the medicine bag 10 is avoided.

[0027] Preferably, an encoder is further included, the input end of the encoder is coaxially connected with the pulley of the explosion-proof belt conveyor 3, and the output end of the encoder is signal-connected with the controller. By mechanically coupling the encoder with the driving wheel, the actual displacement of the medicine bag 10 after passing the start end of the explosion-proof belt conveyor 3 is detected, and by cross-verification of the encoder data and the output signals of the trigger sensor 5 and the safety isolation sensor 6, it is ensured that the medicine bag 10 moves to the safety distance before restarting the buffer belt conveyor 2.

[0028] Preferably, the deceleration ratio of the explosion-proof belt conveyor 3 is 10, the linear speed is 1.04 m / s, and the length is 10 m. The deceleration ratio of the buffer belt conveyor 2 is 20, the linear speed is 0.52 m / s, and the length is 5 m. The deceleration ratio of the conveying belt conveyor 1 is 20, the linear speed is 0.52 m / s, and the length is 5 m. By arranging the linear speed of the explosion-proof belt conveyor 3 to be greater than the linear speeds of the conveying belt conveyor 1 and the buffer belt conveyor 2, the medicine bag 10 can quickly pass the distance of the length, and the anti-propagation safety distance is ensured.

[0029] The working principle of the embodiment is as follows: the medicine bags 10 are conveyed to the conveying belt machine 1 after being detected by the bag sewing quality detection device 7, the bag sewing quality detection and elimination device 8 and the code spraying quality detection device 9, and then are uniformly conveyed to the buffer belt machine 2 by the conveying belt machine 1 at a constant speed. Figure 2 As shown in the attached drawings, the four medicine bags 10 conveyed by the buffer belt machine are closely arranged with a very small interval. In this case, the interval detection sensor group 4 and the trigger sensor 5 detect the medicine bags 10 at the corresponding positions respectively. The logical relationship of the judgment is as follows: when the trigger sensor 5 is in state 1, it indicates that there is a medicine bag 10 on the explosion-proof belt machine 3. On the premise that the trigger sensor 5 is in state 1, if the interval detection sensor group 4, i.e. any one of the detection sensors 41, is in state 1 (may be at the same time or not), it indicates that the medicine bags 10 on the buffer belt machine 2 are in an abnormal state. At this time, the buffer belt machine 2 is stopped by the controller, and the explosion-proof belt machine 3 continues to run for a preset time, so that the medicine bags 10 are conveyed from the beginning of the explosion-proof belt machine 3 to the position of the safety isolation sensor 6, and then the buffer belt machine 2 is inflated and runs, and enters the next judgment cycle. If the trigger sensor 5 is not in state 1, all the belt machines run normally. If the trigger sensor 5 is in state 1 and the interval detection sensor group 4 is not in state 1, all the belt machines run normally.

[0030] The technical principle of the utility model is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be explained as the limitation of the protection scope of the utility model in any way. Based on the explanation herein, the person skilled in the art can think of other specific embodiments of the utility model without creative labor, and these embodiments will fall within the protection scope of the utility model.

Claims

1. An emulsion explosive anti-detonation safety control device, characterized by, The device comprises a conveying belt machine, a buffer belt machine, an explosion-proof belt machine and a controller arranged in sequence along the conveying direction, the conveying belt machine, the buffer belt machine and the explosion-proof belt machine are connected end to end in sequence, the buffer belt machine is provided with a distance detection sensor group, the beginning of the explosion-proof belt machine is provided with a trigger sensor, and the controller is respectively connected with the distance detection sensor group, the trigger sensor and the buffer belt machine. When the trigger sensor detects that a medicine bag passes through the beginning of the explosion-proof belt machine, if the distance detection sensor group synchronously detects that there is a medicine bag on the buffer belt machine, the controller generates a stop command to the buffer belt machine, and the buffer belt machine pauses for a preset time, and then the controller restarts the buffer belt machine.

2. The emulsion explosive anti-detonation safety control device according to claim 1, characterized in that, The device further comprises a safety isolation sensor arranged on the explosion-proof belt machine, and when the safety isolation sensor detects that a medicine bag passes through, the safety isolation sensor sends a running signal to the controller, and the controller restarts the buffer belt machine.

3. The emulsion explosive anti-detonation safety control device according to claim 1, characterized in that, The distance detection sensor group comprises at least three detection sensors, and a plurality of detection sensors are arranged on the buffer belt machine at equal intervals along the conveying direction.

4. The emulsion explosive anti-mall safety control device according to claim 3, characterized in that, The trigger sensor, the safety isolation sensor and the distance detection sensor group all adopt photoelectric opposite-acting sensors.

5. The emulsion explosive anti-detonation safety control device according to claim 1, characterized in that, The device further comprises an encoder, an input end of the encoder is coaxially connected with a pulley of the explosion-proof belt machine, and an output end of the encoder is connected with the controller.

6. The emulsion explosive anti-detonation safety control device according to claim 1, characterized in that, The reduction ratio of the explosion-proof belt machine is 10, the linear speed is 1.04 m / s, and the length is 10 m.

7. The emulsion explosive anti-mall safety control device according to claim 1, characterized in that, The reduction ratio of the buffer belt machine is 20, the linear speed is 0.52 m / s, and the length is 5 m.

8. The emulsion explosive anti-mall safety control device according to claim 1, characterized in that, The reduction ratio of the conveying belt machine is 20, the linear speed is 0.52 m / s, and the length is 5 m.

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