Explosion protection system and control method for scrap metal crushing machine

An explosion-proof system and crusher technology, used in grain processing and other directions, can solve problems such as endangering the life and health of operators, equipment damage, explosions, etc., to achieve accurate and reliable explosion-proof functions, reduce waste, and reduce damage.

Pending Publication Date: 2018-08-21
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

Since the crushed waste often contains hazardous waste such as waste oil tanks, waste gas barrels, waste paint barrels, and waste hazardous chemical tanks, during the crushing process, when these hazardous wastes are crushed, the flammable and explosive gas in the crushing chamber gradually Accumulation, when the exte

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  • Explosion protection system and control method for scrap metal crushing machine
  • Explosion protection system and control method for scrap metal crushing machine

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Embodiment Construction

[0019] Such as figure 1 As shown, the present invention discloses an explosion-proof system and control method for a scrap metal shredder, including an oxygen concentration sensor 2, a gas pressure sensor 3, a nitrogen inerting device 6, a water mist explosion suppression device 7, an active explosion venting device 8, a dust removal Pipeline isolation device 9 and controller 4. The signal output end of the oxygen concentration sensor and the signal output end of the gas pressure sensor are respectively electrically connected to the signal receiving end of the controller 4; the signal output end of the controller 4 is connected to the nitrogen inerting device 6 , Water mist explosion suppression device 7, dust removal pipeline isolation device 9, and active explosion venting device 8 are electrically connected.

[0020] In the above embodiments, for the explosion-proof system of the scrap metal crusher, different explosion-proof measures are taken for the situation that the e...

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Abstract

The invention provides an explosion protection system and a control method for a scrap metal crushing machine. The system comprises an oxygen concentration sensor, a gas pressure sensor, a nitrogen inerting system, a water mist explosion suppression system, a dust removal pipeline isolated system, an active explosion venting system, a manual control switch, an audible and visual alarm and a controller, wherein the input end of the controller is electrically connected with the output end of the sensor; and the output end of the controller is electrically connected with the nitrogen inerting system, the water mist explosion suppression system, the dust removal pipeline isolated system and the active explosion venting system. According to the explosion protection system for the scrap metal crushing machine provided by the invention, signals inside a crushing cavity are collected by the sensor and transmitted to the controller, and the signals are sent to a corresponding explosion protection device after processing judgment by the controller, so that the explosion protection function of the crushing machine is realized, the damage of explosion is reduced, and normal operation of the crushing machine and the safety of operation staff are guaranteed.

Description

technical field [0001] The invention relates to the field of scrap metal crushing and recycling equipment, in particular to an explosion-proof system and a control method for a scrap metal shredder. Background technique [0002] At present, scrap metal shredding is the most advanced scrap metal processing method in the world, and it has been gradually promoted and applied in our country. The crushing process is as follows: the metal scrap is conveyed to the rolling device through the feeding device, and then enters the crusher after being squeezed and deformed; the metal scrap is squeezed and deformed until it is crushed under the repeated impact of the hammer head of the crusher. Since the crushed waste often contains hazardous waste such as waste oil tanks, waste gas barrels, waste paint barrels, and waste hazardous chemical tanks, during the crushing process, when these hazardous wastes are crushed, the flammable and explosive gas in the crushing chamber gradually Accumu...

Claims

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Application Information

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IPC IPC(8): B02C13/31
CPCB02C13/31
Inventor 叶文华陈阳明冯阳程科陈蔚芳梁睿君
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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