Novel emulsion explosive sensitization temperature automatic control system

Abstract

The utility model discloses a novel emulsion explosive sensitization temperature automatic control system which is characterized by comprising a main machine frame, a distributing device, a height adjusting device, a steel belt conveyor and a plurality of spraying cooling units, the distributing device is arranged at the lifting end of the height adjusting device, the steel belt conveyor is arranged on the main machine frame, the head end of the steel belt conveyor is connected with the distributing device, and the head end of the steel belt conveyor is connected with the spraying cooling units. A temperature sensor is arranged at the tail end of the steel belt conveyor, and the multiple spray cooling units are distributed on the steel belt conveyor at intervals. Therefore, the height of the distributing device is dynamically adjusted according to the temperature of the matrix at the tail end of the steel belt conveyor, the paving thickness of the emulsified matrix on the steel belt is changed, the number of the started spraying cooling units is adjusted, then self-adaptive temperature control is achieved, it is ensured that the sensitization temperature is constant within the process temperature interval, manual intervention is not needed, and the production efficiency is improved. The intrinsic safety is ensured, and the stability of the quality of the emulsion explosive is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to emulsion explosive sensitization technical field especially relates to a novel emulsion explosive sensitization temperature automatic control system. BACKGROUND

[0002] The low temperature composite sensitization process is often used in the production of emulsion explosive, and the 90-100 DEG C substrate produced by the emulsifier needs to be cooled to 49-52 DEG C in the production process, so as to meet the needs of the sensitization process. In this process, too high or too low sensitization temperature will directly affect the quality of emulsion, too high temperature will lead to the destruction of the expanded perlite bubble structure, the excessive reaction of the foaming agent to generate invalid large bubbles and the decline of the substrate coating capacity, and too low temperature will make the viscosity of the emulsion substrate large, leading to the destruction of perlite in the stirring process and the difficulty in uniform mixing, at the same time, the foaming agent produces invalid small bubbles and the bubbles are not easy to form. In the current production, the control of the substrate temperature can only rely on the manual experience judgment and manual adjustment of the pharmaceutical personnel, which is difficult to meet the requirements of unmanned production and is not conducive to the quality control of explosive. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a novel emulsion explosive sensitization temperature automatic control system to solve one or more technical problems in the above background technology.

[0004] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0005] A novel emulsion explosive sensitization temperature automatic control system, comprising a main frame, a distributor, a height adjusting device, a steel belt conveyor and a plurality of spray cooling units, the height adjusting device is arranged at the first end of the main frame, the distributor is arranged at the lifting end of the height adjusting device, the steel belt conveyor is arranged on the main frame, the first end of the steel belt conveyor is connected with the distributor, the temperature sensor is arranged at the tail end of the steel belt conveyor, and a plurality of spray cooling units are distributed on the steel belt conveyor along the conveying direction.

[0006] Preferably, it further comprises a PLC controller, the input end of the PLC controller is electrically connected with the temperature sensor, and the output end of the PLC controller is electrically connected with the control end of the height adjusting device.

[0007] When the temperature sensor detects that the temperature of the substrate transported to the tail end of the steel belt conveyor is higher than the set range, the height adjusting device drives the distributor to move downward, so that the vertical distance between the distributor and the steel belt conveyor is reduced, and when the temperature sensor detects that the temperature of the substrate transported to the tail end of the steel belt conveyor is lower than the set range, the height adjusting device drives the distributor to move upward, so that the vertical distance between the distributor and the steel belt conveyor is increased.

[0008] Preferably, the spraying cooling units are 8, at least 4 of which are in the normally open state, and the control ends of the remaining spraying cooling units are electrically connected with the output ends of the PLC controller.

[0009] Preferably, the spraying cooling unit comprises a spraying pipe and a spraying valve, both of which are arranged on the main rack, the spraying pipe is in communication with the output end of the spraying valve, and the spraying end of the spraying pipe is arranged towards the lower surface of the steel belt conveyor.

[0010] Preferably, the utility model also comprises a cooling fan, the cooling fan is fixed above the steel belt conveyor, the control end of the cooling fan is electrically connected with the output end of the PLC controller, and the air outlet of the cooling fan is arranged towards the upper surface of the steel belt conveyor.

[0011] Preferably, the utility model also comprises a limit sensor, the limit sensor is arranged on both sides of the first end of the steel belt conveyor, and the limit sensor is electrically connected with the input end of the PLC controller.

[0012] Preferably, the height adjusting device comprises two groups of servo motors and two groups of lifting mechanisms, both ends of the material distributor are connected with the lifting ends of the two groups of lifting mechanisms respectively, the rotating shaft of the servo motor is connected with the input end of the lifting mechanism, and the servo motor is electrically connected with the output end of the PLC controller.

[0013] Preferably, the utility model also comprises a thickness detection sensor, the thickness detection sensor is arranged on the first end of the main rack, the thickness detection sensor is used for detecting the vertical distance between the material distributor and the steel belt conveyor, and the thickness detection sensor is electrically connected with the output end of the PLC controller.

[0014] Compared with the prior art, the utility model has the beneficial effects that: by arranging the material distributor on the height adjusting device, arranging multiple spraying cooling units on the steel belt conveyor, and arranging a temperature sensor at the end of the steel belt conveyor, the height of the material distributor is dynamically adjusted according to the substrate temperature at the end of the steel belt conveyor, the paving thickness of the emulsion substrate on the steel belt is changed, the number of the spraying cooling units that are turned on is adjusted, and then self-adaptive temperature control is realized, so that the sensitization temperature is kept constant in the process temperature range, manual intervention is not needed, the intrinsic safety is ensured, and the stability of the emulsion explosive quality is ensured. 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 is a top structure schematic view of the host frame of one embodiment of the utility model.

[0018] Among them: host frame 1, distributor 2, height adjusting device 3, steel belt conveyor 4, spray cooling unit 5, temperature sensor 6, spray pipe 51, spray valve 52, cooling fan 7, limit sensor 8, servo motor 31, lifting mechanism 32, sensitization machine 9. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be further illustrated below by specific embodiments in conjunction with the drawings.

[0020] A novel emulsion explosive sensitization temperature automatic control system of the embodiment, reference is made to the accompanying drawings Figure 1 and 2 , including host frame 1, distributor 2, height adjusting device 3, steel belt conveyor 4 and multiple spray cooling units 5, height adjusting device 3 is arranged at the first end of host frame 1, distributor 2 is arranged at the lifting end of height adjusting device 3, steel belt conveyor 4 is arranged on host frame 1, the first end of steel belt conveyor 4 is connected with distributor 2, the end of steel belt conveyor 4 is provided with temperature sensor 6, multiple spray cooling units 5 are distributed on steel belt conveyor 4 along the conveying direction.

[0021] By arranging distributor 2 on height adjusting device 3, arranging multiple spray cooling units 5 on steel belt conveyor 4 and setting temperature sensor 6 at the end of steel belt conveyor 4, the height of distributor 2 is dynamically adjusted according to the matrix temperature at the end of steel belt conveyor 4, the paving thickness of emulsion matrix on the steel belt is changed, and the opening number of spray cooling unit 5 is adjusted, thereby realizing self-adaptive temperature control, ensuring that the sensitization temperature is constant in the process temperature interval, without manual intervention, ensuring the intrinsic safety and guaranteeing the stability of emulsion explosive quality.

[0022] Preferably, it further includes PLC controller, the input end of PLC controller is electrically connected with temperature sensor 6, and the output end of PLC controller is electrically connected with the control end of height adjusting device 3. By setting PLC controller and connecting temperature sensor 6, height adjusting device 3 and spray cooling unit 5 into PLC controller, the logical operation of the system is realized.

[0023] Preferably, the number of spray cooling units 5 arranged in the embodiment is 8, of which at least 4 spray cooling units 5 are in a normally open state, and the control ends of the remaining spray cooling units 5 are electrically connected to the output end of the PLC controller. In this way, the basic cooling of the substrate is realized by arranging 4 spray cooling units 5 in a normally open state, and the remaining spray cooling units 5 are controlled by the PLC controller to control the on-off state during system operation. Under the condition of ensuring the basic cooling function, different cooling effects can be achieved by controlling the number of opened spray cooling units 5.

[0024] Further, the spray cooling unit 5 comprises a spray pipe 51 and a spray valve 52, both of which are arranged on the main rack 1. The spray pipe 51 is in communication with the output end of the spray valve 52, and the spray end of the spray pipe 51 is arranged towards the lower surface of the steel belt conveyor 4. By arranging the spray end of the spray pipe 51 towards the lower surface of the steel belt conveyor 4, the cooling medium can directly act on the lower side of the steel belt carrying the emulsified substrate, and the heat can be transmitted through the steel belt, thereby effectively cooling the emulsified substrate on the steel belt, and avoiding direct impact of the cooling medium on the surface of the emulsified substrate, reducing the damage to the structure of the emulsified substrate. By equipping each spray pipe 51 with an independent spray valve 52, the cooling liquid flow and spray pressure of each spray pipe 51 can be precisely adjusted according to the substrate temperature at the end of the steel belt conveyor 4 (i.e. before entering the sensitization machine 9), and the temperature adjustment under different production conditions can be met.

[0025] Preferably, the cooling fan 7 is further included, which is fixed above the steel belt conveyor 4, and the control end of the cooling fan 7 is electrically connected to the output end of the PLC controller, and the air outlet of the cooling fan 7 is arranged towards the upper surface of the steel belt conveyor 4. By arranging the cooling fan 7 above the steel belt conveyor 4 and making its air outlet towards the upper surface of the steel belt conveyor 4, a double cooling mode combining air cooling and water cooling is realized, and the cooling efficiency is improved.

[0026] Preferably, the limiting sensor 6 is further included, which is arranged on both sides of the first end of the steel belt conveyor 4, and the limiting sensor 6 is electrically connected to the input end of the PLC controller. By arranging two limiting sensors 6 at 100mm from the edges of the steel belt conveyor 4, when the limiting sensor 6 senses the substrate, the position of the distributor 2 will no longer be lowered, ensuring that the substrate will not overflow, and ensuring the safety and industrial hygiene of the production site.

[0027] Preferably, the height adjusting device 3 comprises two groups of servo motors 31 and two groups of lifting mechanisms 32, two ends of the distributor 2 are connected with lifting ends of the two groups of lifting mechanisms 32 respectively, a rotating shaft of the servo motor 31 is connected with an input end of the lifting mechanism 32, and the servo motor 31 is electrically connected with an output end of the PLC controller. By controlling the rotating angle of the servo motor 31, the height of the distributor 2 can be adjusted, so that the control of the thickness of the emulsion matrix is realized.

[0028] Preferably, the thickness detection sensor is arranged at the first end of the main frame 1, the thickness detection sensor is used for detecting the vertical distance between the distributor 2 and the steel belt conveyor 4, and the thickness detection sensor is electrically connected with the output end of the PLC controller. By detecting the vertical height of the distributor 2 through the thickness detection sensor, the accuracy of the height adjustment of the distributor 2 by the height adjusting device 3 is ensured, and the accuracy of the thickness adjustment of the matrix is realized.

[0029] The working principle of the embodiment is as follows: during the operation of the system, the height adjusting device 3 controls the vertical height between the distributor 2 and the steel belt conveyor 4 to be below 20 mm, so that the thickness of the matrix does not exceed 20 mm, and the safety condition of preventing the transmission of the explosion is met; when the temperature sensor 6 detects that the temperature of the matrix transported to the end of the steel belt conveyor 4 is higher than the set range, it is judged that the temperature is higher than the process temperature, the PLC controller outputs a signal to make the height adjusting device 3 drive the height of the distributor 2 to be lowered, and the idle spraying cooling unit 5 is started at the same time; after a set time, the temperature of the matrix at the end of the steel belt conveyor 4 is acquired again, if the temperature has not been reduced to the required range, the cooling fan 7 is started and the height adjusting device 3 drives the distributor 2 to move downward again until the temperature of the matrix returns to the normal range; when the temperature sensor 6 detects that the temperature of the matrix transported to the end of the steel belt conveyor 4 is lower than the set range, the height adjusting device 3 drives the distributor 2 to move upward, so that the vertical distance between the distributor 2 and the steel belt conveyor 4 is increased.

[0030] The technical principles of the utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles 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 all fall within the protection scope of the utility model.

Claims

1. A novel automatic control system for the sensitization temperature of emulsion explosives, characterized in that, The device includes a main frame, a material distributor, a height adjustment device, a steel belt conveyor, and multiple spray cooling units. The height adjustment device is located at the first end of the main frame, the material distributor is located at the lifting end of the height adjustment device, the steel belt conveyor is mounted on the main frame, the first end of the steel belt conveyor is connected to the material distributor, and the end of the steel belt conveyor is equipped with a temperature sensor. The multiple spray cooling units are distributed at intervals along the conveying direction on the steel belt conveyor.

2. The novel automatic control system for sensitization temperature of emulsion explosives according to claim 1, characterized in that, It also includes a PLC controller, the input terminal of which is electrically connected to the temperature sensor, and the output terminal of which is electrically connected to the control terminal of the height adjustment device; When the temperature sensor detects that the temperature of the substrate being transported to the end of the steel belt conveyor is higher than the set range, the height adjustment device drives the material distributor to move downward, thereby reducing the vertical distance between the material distributor and the steel belt conveyor; when the temperature sensor detects that the temperature of the substrate being transported to the end of the steel belt conveyor is lower than the set range, the height adjustment device drives the material distributor to move upward, thereby increasing the vertical distance between the material distributor and the steel belt conveyor.

3. The novel automatic control system for sensitization temperature of emulsion explosives according to claim 2, characterized in that, There are 8 spray cooling units, of which at least 4 spray cooling units are normally open, and the control terminals of the remaining spray cooling units are electrically connected to the output terminals of the PLC controller.

4. The novel automatic control system for sensitization temperature of emulsion explosives according to claim 3, characterized in that, The spray cooling unit includes a spray pipe and a spray valve. Both the spray pipe and the spray valve are mounted on the main frame. The spray pipe is connected to the output end of the spray valve, and the spray end of the spray pipe is positioned facing the lower surface of the steel belt conveyor.

5. A novel automatic control system for the sensitization temperature of emulsion explosives according to claim 2, characterized in that, It also includes a cooling fan, which is fixed above the steel belt conveyor. The control terminal of the cooling fan is electrically connected to the output terminal of the PLC controller, and the air outlet of the cooling fan is set facing the upper surface of the steel belt conveyor.

6. The novel automatic control system for sensitization temperature of emulsion explosives according to claim 2, characterized in that, It also includes limit sensors, which are located on both sides of the head end of the steel belt conveyor and are electrically connected to the input terminal of the PLC controller.

7. The novel automatic control system for sensitization temperature of emulsion explosives according to claim 2, characterized in that, The height adjustment device includes two sets of servo motors and two sets of lifting mechanisms. The two ends of the fabric feeder are respectively connected to the lifting ends of the two sets of lifting mechanisms. The rotating shaft of the servo motor is connected to the input end of the lifting mechanism. The servo motor is electrically connected to the output end of the PLC controller.

8. A novel automatic control system for the sensitization temperature of emulsion explosives according to claim 2, characterized in that, It also includes a thickness detection sensor, which is located at the first end of the main frame. The thickness detection sensor is used to detect the vertical distance between the fabric feeder and the steel belt conveyor. The thickness detection sensor is electrically connected to the output terminal of the PLC controller.

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