CN208852953U - A kind of old metal crusher explosion protection system - Google Patents

A kind of old metal crusher explosion protection system Download PDF

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Publication number
CN208852953U
CN208852953U CN201820568241.XU CN201820568241U CN208852953U CN 208852953 U CN208852953 U CN 208852953U CN 201820568241 U CN201820568241 U CN 201820568241U CN 208852953 U CN208852953 U CN 208852953U
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explosion
crusher
controller
old metal
protection system
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CN201820568241.XU
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叶文华
陈阳明
冯阳
程科
陈蔚芳
梁睿君
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Abstract

The utility model provides a kind of old metal crusher explosion protection system, system includes oxygen concentration sensor, gas pressure sensor, nitrogen purging system, water mist explosion suppression system, cleaning shaft shielding system, active venting of dust explosion system, hand control switch, combined aural and visual alarm and controller, the controller input terminal is electrically connected with the output end of sensor, and the output end of controller is electrically connected with nitrogen purging system, water mist explosion suppression system, cleaning shaft shielding system and active venting of dust explosion system.Old metal crusher explosion protection system provided by the utility model acquires signal in crusher chamber by sensor and is transferred to controller, controller transmits a signal to corresponding explosion-protection equipment after carrying out processing judgement, to realize the explosion prevention function of crusher, the harm for reducing explosion, guarantees the normal work of crusher and the safety of operator.

Description

A kind of old metal crusher explosion protection system
Technical field
The utility model relates to old metal to be crushed reclaimer field more particularly to a kind of explosion-proof system of old metal crusher System.
Background technique
Currently, old metal break process is current old metal processing method state-of-the-art in the world, China also gradually It is promoted and applied.Broken process are as follows: scrap metal is transported to rolling device by charging gear, after being squeezed and deformed Into crusher;Scrap metal generates extrusion deformation until broken under the impact repeatedly of grinder hammerhead.Since broken gives up Often containing dangerous waste materials such as sump tank, exhaust gas bucket, waste oil paint can, useless danger chemicals tanks in material, in shattering process, when broken When to these dangerous waste materials, inflammable, explosion hazard gases is built up in crusher chamber, broken machine cavity body temperature, pressure etc. it is external because Element reaches certain condition, and main shaft tup and old metal, which are hit, generates spark, it is possible to cause burning and explosion, cause equipment Damage, or even jeopardize the life and health safety of operator.
Utility model content
In order to solve the above problem, the utility model provides a kind of old metal crusher explosion protection system, can acquire in real time broken Intracavitary oxygen concentration and gas pressure value, and judged with this and make quick response to realize the explosion prevention function of crusher, guarantee The normal work of crusher and the safety of operator.
The utility model uses following technical scheme to solve above-mentioned technical problem:
A kind of old metal crusher explosion protection system includes oxygen concentration sensor, gas pressure sensor, nitrogen purging dress It sets, water mist explosion suppression device, cleaning shaft isolating device, active explosion venting device and controller;
Old metal crusher explosion protection system according to the present utility model, for explosion, there is no having occurred and that this with explosion Two kinds of situations, take different measures, more accurately and reliably realize the explosion prevention function of crusher.For explode there is no Situation, mainly starting nitrogen purging device injection nitrogen to crusher chamber in, make it is gas inerted in crusher chamber, to be not achieved quick-fried Fried condition prevents the generation of explosion;The case where having occurred and that for explosion mainly passes through starting water mist explosion suppression device injection Water mist carries out cooling fire extinguishing, reduces and endangers caused by explosion;Start active explosion venting device and cleaning shaft isolating device simultaneously, it is main The effect of dynamic explosion venting device is to make the high pressure gas of explosion generation to specifying safe direction to spread, and reduces explosion to broken machine part Destruction;The effect of cleaning shaft isolating device is that the high pressure for preventing explosion from generating is spread to cleaning shaft, protects cleaning shaft. By being endangered caused by the more reliable reduction explosion of a variety of explosion-protection equipments.
Preferably, the controller has multiple signal receiving ends and multiple signal sending ends, each signal is received End respectively corresponds one signal sending end of control.
Old metal crusher explosion protection system according to the present utility model, controller have multiple signal receiving ends and multiple letters Number transmitting terminal is, it can be achieved that connect multiple oxygen concentration sensors, multiple gas pressure sensors, multiple nitrogen on the controller lazy Makeup is set and multiple water mist explosion suppression devices.Since crusher chamber inner volume is larger, the region for being easy to happen explosion is larger, needs not It is respectively arranged oxygen concentration sensor, gas pressure sensor, nitrogen purging device and water mist explosion suppression device with region, when a certain When the sensor response in region, controller controls the antiknock device starting in the region, not will start armamentarium, it is unnecessary to reduce Waste.
Preferably, further including hand control switch, the signal of the hand control switch and the controller is received End electrical connection, the controller receive after the trigger signal of the hand control switch to the water mist explosion suppression device, active Explosion venting device, cleaning shaft isolating device send enabling signal.
Old metal crusher anti-explosion explosion-suppression control system according to the present utility model, if had occurred and that in crusher chamber quick-fried Fried, gas pressure sensor does not respond to, and can trigger hand control switch by staff to start water mist explosion suppression device, master Dynamic explosion venting device, cleaning shaft isolating device, reduce and endanger caused by explosion.
Preferably, further including combined aural and visual alarm, the combined aural and visual alarm is electrically connected with the control signal sending end, The controller detects explode in crusher chamber after, send enabling signal and start combined aural and visual alarm and operator is warned Show.
The utility model compared with the prior art by using the above technical solution, has the following technical effects;
1, the utility model can fast automatic hazard recognition information, and explosion-protection equipment can be started rapidly, it is effective to guarantee The normal work of crusher and the safety of operator;
2, different measures is taken to carry out before the utility model occurs respectively for explosion and after explosion generation explosion-proof, And a variety of antiknock devices are provided with, are injured caused by more acurrate reliable reduction explosion;
3, the utility model realizes regional explosion identification, and a certain region in crusher chamber can be recognized accurately by sensor Precarious position differentiates, to control the explosion-protection equipment movement in this region, realizes that region is explosion-proof, reduces unnecessary waste.
Detailed description of the invention
Fig. 1 is the attachment structure schematic diagram of a preferred embodiment of the old metal crusher explosion protection system of the utility model;
Fig. 2 is the explosion-protection equipment specific structure composition figure of the old metal crusher explosion protection system of the utility model.
1- hand control switch in the figure, 2- oxygen concentration sensor, 3- gas pressure sensor, 4- controller, 5- sound Light crossing-signal, 6- nitrogen purging device, 7- water mist explosion suppression device, 8- active explosion venting device, 9- cleaning shaft isolating device, 10- Nitrogen nozzle, 11- air-operated solenoid valve, 12- nitrogen cylinder, 13- water tank, 14- hydraulic buttery valve, 15- hydraulic spray nozzle, the first electricity of 16- Machine, 17- explosion relief door, the second motor of 18-, 19- isolating valve.
Specific embodiment
As shown in Figure 1, including oxygen the utility model discloses a kind of old metal crusher explosion protection system and control method Concentration sensor 2, gas pressure sensor 3, nitrogen purging device 6, water mist explosion suppression device 7, active explosion venting device 8, dust removing tube Road isolating device 9 and controller 4.The signal of the signal output end of the oxygen concentration sensor and the gas pressure sensor Output end is electrically connected with the signal receiving end of the controller 4 respectively;The signal output end and the nitrogen of the controller 4 are lazy Makeup is set 6, water mist explosion suppression device 7, cleaning shaft isolating device 9, active explosion venting device 8 and is electrically connected.
In the embodiment above, for old metal crusher explosion protection system, for explosion, there is no having sent out with explosion Raw situation takes different explosion precautions, realizes the multistage anti-explosion explosion-suppression function of crusher, more acurrate reliable reduction explosion Caused by endanger.For explosion there is no the case where, oxygen concentration sensor 2 detect crusher chamber in oxygen concentration, work as oxygen When sensor detects that oxygen concentration is higher than 8% in crusher chamber, controller 4 sends signal triggering air-operated solenoid valve 11 and opens, nitrogen Nozzle 10 sprays nitrogen, and oxygen concentration in crusher chamber is made to be consistently less than 8%, so that the condition of explosion is not achieved in broken intracavity gas, Prevent the generation of explosion;The case where having occurred and that for explosion, gas pressure sensor 3 acquire broken intracavity gas pressure in real time Power, sends a signal to the signal receiving end of controller 4 by signal output end afterwards, and controller 4 receives after signal to signal Judged, if the judgement of controller 4 has occurred and that explosion at this time, signal triggering hydraulic buttery valve 14 will be sent and opened, water mist The cooling fire extinguishing of 15 water spray of nozzle inhibits explosion further diffusion;Controller 4 sends enabling signal driving motor and opens simultaneously Active explosion venting device 8 and cleaning shaft isolating device 9, the effect of active explosion venting device 8 be make explosion generate high pressure gas to It specifies safe direction to spread, reduces destruction of the explosion to broken machine part;The effect of cleaning shaft isolating device 9 is to prevent from exploding The high pressure of generation is spread to cleaning shaft, protects cleaning shaft.By water mist explosion suppression device 7, active explosion venting device 8 and dust removing tube The combination of road isolating device 9, the more reliable generated harm of reduction explosion, ensure that crusher normal work and work people The safety of member.
Preferably, controller 4 uses STM32 series monolithic in the present embodiment, with multiple signal receiving ends With multiple signal sending ends, each signal receiving end respectively corresponds one signal transmitting terminal of control.
Old metal crusher anti-explosion explosion-suppression control system according to the present utility model, controller 4 are received with multiple signals End and multiple signal sending ends on controller 4, it can be achieved that connect multiple oxygen concentration sensors 2, multiple gas pressures sensing Device 3, multiple nitrogen purging devices 6 and multiple water mist explosion suppression devices 7.For nitrogen explosion protection system, by 2 He of oxygen concentration sensor Nitrogen purging device 6 is arranged in explosive region different in crusher chamber, and oxygen concentration sensor (2) and gas pressure sense Device (3) interval is mounted on crusher wall;When the oxygen concentration sensor 2 in some region responds, controller 4 controls this area The nitrogen purging device 6 in domain sprays nitrogen, realizes this zone gas inerting explosion prevention function, not will start all nitrogen in crusher chamber Gas inerting unit 6 starts, and reduces unnecessary waste;For water mist explosion suppression system, gas pressure sensor 3 and water mist are pressed down Quick-fried device 7 is arranged in explosive region different in crusher chamber, when the gas pressure sensor 3 in some region responds, control Device 4 processed will control the water mist explosion suppression device 7 in this region, realizes the datonation-inhibition function of this region fire extinguishing, not will start in crusher chamber All water mist explosion suppression devices 7 start, and reduce unnecessary waste.For active venting of dust explosion system and active flameproof system, due to Active explosion venting device 8 and cleaning shaft isolating device 9 only one, explosion time occurs in crusher chamber when detecting, controller 4 is straight It connects control active explosion venting device 8 and cleaning shaft isolating device 9 starts, reduce and endangered caused by explosion.
Nitrogen purging device 6 employed in the present embodiment includes nitrogen nozzle 10, air-operated solenoid valve 11 and nitrogen cylinder 12, The air-operated solenoid valve 11 is connected with the controller 4;The nitrogen cylinder 12 is connected by pipeline with multiple nitrogen nozzles 10, institute The interval of nitrogen nozzle 10 is stated to be mounted on crusher wall.The water mist explosion suppression device 7 includes water tank 13, hydraulic buttery valve 14 and water Atomizing nozzle 15, the hydraulic buttery valve 14 are connected with the controller 4;The water tank 13 passes through pipeline and multiple hydraulic spray nozzles 15 It is connected, the interval of hydraulic spray nozzle 15 is mounted on crusher wall.
Preferably, further including hand control switch 1, the signal of the hand control switch 1 and the controller 4 is sent out Sending end electrical connection, the controller 4 receive after the trigger signal of the hand control switch 1 to the water mist explosion suppression device 7, Active explosion venting device 8 and cleaning shaft isolating device 9 send enabling signal.Old metal crusher according to the present utility model is explosion-proof Datonation-inhibition control system, if having occurred and that explosion in crusher chamber, gas pressure sensor 3 is not responded to, and can pass through staff Hand control switch 1 is triggered to start water mist explosion suppression device 7, active explosion venting device 8 and cleaning shaft isolating device 9, is reduced quick-fried It is endangered caused by fried.
Preferably, further including combined aural and visual alarm, the combined aural and visual alarm is electrically connected with the control signal sending end, The controller 4 detects explode in crusher chamber after, send enabling signal starting combined aural and visual alarm to operator's progress Warning.
Those skilled in the art can understand that unless otherwise defined, all terms used herein (including skill Art term and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the utility model fields Justice.It should also be understood that those terms such as defined in the general dictionary should be understood that with upper with the prior art The consistent meaning of meaning hereinafter, and unless defined as here, will not with idealization or meaning too formal come It explains.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done, It should be included within the scope of protection of this utility model.

Claims (6)

1. a kind of old metal crusher explosion protection system, which is characterized in that sensed comprising oxygen concentration sensor (2), gas pressure Device (3), nitrogen purging device (6), water mist explosion suppression device (7), cleaning shaft isolating device (8), active explosion venting device (9) and control Device (4) processed;The signal output end of the oxygen concentration sensor (2) and the signal output end of the gas pressure sensor (3) It is electrically connected respectively with the signal receiving end of the controller (4);The signal output end and the nitrogen purging of the controller (4) Device (6), water mist explosion suppression device (7), cleaning shaft isolating device (8) and active explosion venting device (9) electrical connection.
2. old metal crusher explosion protection system according to claim 1, which is characterized in that the oxygen concentration sensor (2) multiple, and each oxygen concentration sensor (2), gas pressure sensor are provided with the gas pressure sensor (3) (3) independent to be electrically connected with the signal receiving end of the controller (4).
3. old metal crusher explosion protection system according to claim 2, which is characterized in that the oxygen concentration sensor (2) it is mounted on crusher wall with gas pressure sensor (3) interval.
4. old metal crusher explosion protection system according to claim 1, which is characterized in that the controller (4) uses STM32 series monolithic.
5. old metal crusher explosion protection system according to claim 4, which is characterized in that the nitrogen purging device (6) Including nitrogen nozzle (10), air-operated solenoid valve (11) and nitrogen cylinder (12), the air-operated solenoid valve (11) and the controller (4) It is connected;The nitrogen cylinder (12) is connected by pipeline with multiple nitrogen nozzles (10), and nitrogen nozzle (10) interval is mounted on On crusher wall.
6. old metal crusher explosion protection system according to claim 4, which is characterized in that the water mist explosion suppression device (7) Including water tank (13), hydraulic buttery valve (14) and hydraulic spray nozzle (15), the hydraulic buttery valve (14) and the controller (4) phase Even;The water tank (13) is connected by pipeline with multiple hydraulic spray nozzles (15), and hydraulic spray nozzle (15) interval is mounted on broken On machine wall.
CN201820568241.XU 2018-04-20 2018-04-20 A kind of old metal crusher explosion protection system Active CN208852953U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108421603A (en) * 2018-04-20 2018-08-21 南京航空航天大学 A kind of old metal crusher explosion protection system and control method
CN114306977A (en) * 2021-12-24 2022-04-12 南京昭凌精密机械有限公司 Explosion-proof system
CN116213088A (en) * 2023-01-05 2023-06-06 烟台大为环保科技有限公司 Lithium battery charged crushing system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108421603A (en) * 2018-04-20 2018-08-21 南京航空航天大学 A kind of old metal crusher explosion protection system and control method
CN114306977A (en) * 2021-12-24 2022-04-12 南京昭凌精密机械有限公司 Explosion-proof system
CN116213088A (en) * 2023-01-05 2023-06-06 烟台大为环保科技有限公司 Lithium battery charged crushing system and method

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