CN105538169A - Dust explosion protection system of shot blasting and sand blasting equipment - Google Patents

Dust explosion protection system of shot blasting and sand blasting equipment Download PDF

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Publication number
CN105538169A
CN105538169A CN201610029936.6A CN201610029936A CN105538169A CN 105538169 A CN105538169 A CN 105538169A CN 201610029936 A CN201610029936 A CN 201610029936A CN 105538169 A CN105538169 A CN 105538169A
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China
Prior art keywords
ball
protection
dust
explosion
equipment
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CN201610029936.6A
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CN105538169B (en
Inventor
孟宪卫
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Guangdong Jinfangyuan Safety Technology Testing Co Ltd
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Guangdong Jinfangyuan Safety Technology Testing Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B24C9/003Removing abrasive powder out of the blasting machine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B24C9/006Treatment of used abrasive material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Air Transport Of Granular Materials (AREA)

Abstract

The embodiment of the invention discloses a dust explosion protection system of shot blasting and sand blasting equipment in order to solve the problem that dust explosion easily occurs due to dust emission, dust drifting and burning caused by sparks in the metal product surface shot blasting and sand blasting machining process. The dust explosion protection system of the shot blasting and sand blasting equipment comprises the shot blasting and sand blasting equipment, a shot and sand conveying device, a shot and sand bin, a shot and sand separating device, an exhaust system, a dust removal system, a spark detection device, a gas extinguisher, an inert powder injection device, an explosion prevention device, a temperature monitoring device, a fire extinguishing agent injection device, an interlocking protection device and an interlocking protection device control system.

Description

Ball blast abrasive blast equipment dust explosion protection protection system
Technical field
The present invention relates to surface of metal product processing field, particularly relate to ball blast abrasive blast equipment dust explosion protection protection system.
Background technology
After the blasting treatment of surface of metal product ball blast, produce in the process of metal surface dust release and dust fly away, occur spark and cause burning, cause generation dust explosion danger.
Therefore, find a kind of ball blast abrasive blast equipment dust explosion protection protection system and become the problem that those skilled in the art need solution badly.
Summary of the invention
The embodiment of the invention discloses ball blast abrasive blast equipment dust explosion protection protection system, for solving the dust release that produces in surface of metal product ball blast sandblasting process and dust flies away and occurs spark and cause burning that the problem of dust explosion risk easily occurs.
The ball blast abrasive blast equipment dust explosion protection protection system that the embodiment of the present invention provides, comprising:
Ball blast abrasive blast equipment, ball sand conveying device, ball sand storehouse, ball sand separating apparatus, exhaust system, dust pelletizing system, spark detection device, fire-smothering gear, Sui's powder jetting device, explosion-protection equipment, device for detecting temperature, extinguishant jetting device, interlocking protective device and interlocking protective device control system;
One end of described ball sand conveying device is connected with the outlet of described ball blast abrasive blast equipment, and the other end is connected with the entrance in described ball sand storehouse;
The outlet in described ball sand storehouse is connected with the entrance of described ball blast abrasive blast equipment;
Described exhaust system comprises blower fan and is arranged on air main and the discharge pipe at described blower fan two ends, and one end of described air main is connected with blower fan, and the other end is connected with described ball sand separating apparatus;
Described dust pelletizing system comprises deduster, and this deduster is arranged on described air main;
The outlet of described ball blast abrasive blast equipment is communicated with by the entrance of pipeline with described ball sand separating apparatus;
The detecting location of described spark detection device is arranged on that the front end of the junction in described ball sand conveying device and ball sand storehouse, ball sand separating apparatus are inner, ash dropping hopper place in the air inlet of dust pelletizing system and/or the deduster of dust pelletizing system;
The sprayer for extinguishing fire exit point of described fire-smothering gear is arranged on that described ball blast abrasive blast equipment is inner, the air inlet of described dust pelletizing system and ash dropping hopper place;
The spray site of described Sui powder jetting device is arranged on the air inlet of described dust pelletizing system;
Described explosion-protection equipment is arranged on the front end of the junction in described ball sand conveying device and described ball sand storehouse, described exhaust system and the air main place of dust pelletizing system and the top of described deduster;
The monitoring probe of described device for detecting temperature is arranged on described ball blast abrasive blast equipment, described ball sand separating apparatus place, the air outlet place of deduster of described dust pelletizing system and ash dropping hopper place;
The jet blower of described extinguishant jetting device is arranged on the top in the top in described ball blast abrasive blast equipment, the air main of described exhaust system and dust pelletizing system and deduster;
Interlocking protective device and described interlocking protective device control system communicate to connect; control by described interlocking protective device control system; described spark detection device, fire-smothering gear, Sui's powder jetting device, explosion-protection equipment, device for detecting temperature and described extinguishant jetting device are electrically connected with described interlocking protective device respectively, realize interlocked startup by described interlocking protective device.
Alternatively, described ball sand conveying device comprises: bucket lifting device, helix transporting device, scraping plate conveying device or Pneumatic conveyer.
Alternatively, described fire-smothering gear comprises: the high-pressure bottle of splendid attire fire-suppressant gas, fire-suppressant gas conveyance conduit, air valve and air pressure display device, fire extinguishing jet device and fire-smothering gear start and control interlocking protective device.
Alternatively, described Sui powder jetting device comprises: the container of splendid attire Sui powder, Sui's powder conveying pipeline, pipeline valve and powder jetting pressure-display device, Sui's powder spray nozzle and Sui's powder jetting device start control device.
Alternatively, described explosion-protection equipment comprises explosion-proof explosion venting device and explosion isolation device.
Alternatively, described extinguishant jetting device comprises: the high-pressure bottle of splendid attire extinguishing chemical, extinguishing chemical conveyance conduit, pipeline valve and pressure-display device, extinguishing chemical jet blower and extinguishant jetting device start and control interlocking protective device.
Alternatively, also comprise anti-static grounding protective device, described anti-static grounding protective device one end ground connection, the other end is connected with described ball sand conveying device, described ball sand separating apparatus, described deduster and described blower fan respectively.
Alternatively, described deduster is pulse backblowing sack cleaner;
Described pulse backblowing sack cleaner is provided with radiused corner, and adopts fire-resistant antistatic material filter bag.
Alternatively, the import and export of described pulse backblowing sack cleaner are provided with blast pressure reduction monitoring alarm.
Alternatively, the bottom of described pulse backblowing sack cleaner is provided with lock gas ash-discharging device.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
In the embodiment of the present invention; described ball blast abrasive blast equipment dust explosion protection protection system is by spark detection device, fire-smothering gear, Sui's powder jetting device, explosion-protection equipment, device for detecting temperature, extinguishant jetting device, interlocking fit between interlocking protective device and interlocking protective device control system; realize the dust explosion protection protection of ball blast blasting treatment process, reduce the dust release that produces in surface of metal product ball blast sandblasting process and dust flies away and occurs spark and cause burning that the risk of dust explosion risk easily occurs.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of ball blast abrasive blast equipment dust explosion protection protection system in the embodiment of the present invention.
Detailed description of the invention
The embodiment of the invention discloses ball blast abrasive blast equipment dust explosion protection protection system, for solving the dust release that produces in surface of metal product ball blast sandblasting process and dust flies away and occurs spark and cause burning that the problem of dust explosion risk easily occurs.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and the embodiment of not all.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, ball blast abrasive blast equipment dust explosion protection protection system comprises: ball blast abrasive blast equipment 1, ball sand conveying device 2, ball sand storehouse 3, ball sand separating apparatus (4,17) and the exhaust system 6 be associated with dust explosion protection and dust pelletizing system 7, spark detection device 8, fire-smothering gear 9, Sui's powder jetting device 16, explosion-protection equipment (10,11), device for detecting temperature 12, extinguishant jetting device 13, interlocking protective device and interlocking protective device control system.
As shown in Figure 1, the roughness of ball blast abrasive blast equipment 1 pair of surface of metal product carries out row ball blast sandblasting processing, and used ball (sand) material enters ball sand storehouse 3 through ball sand conveying device 2, the sandblasting of recycling circulation ball blast; The dust that the sandblasting of surface of the work ball blast is got off and the thin ball (sand) of part expect that 3 enter ball sand separating apparatus (4,17) continuation separation, thin ball (sand) material continues to enter storehouse 3 reuse of ball sand, and the dust produced in surface treatment process, through exhaust system 6, dust is sucked exhaust system 6 airduct, by airduct, dust is delivered to dust pelletizing system 7 and filters settlement treatment, the dust of sedimentation unloads ash 16 by lock gas and enters to collect, clean gas discharges in outdoor eminence, and the power of whole course of conveying is provided by the blower fan being located at dust pelletizing system back segment.
The ball blast abrasive blast equipment dust explosion protection protection system of being somebody's turn to do prevents the technical approach of dust explosion from being in ball blast abrasive blast equipment 1 system; by arranging the exhaust system 6 and dust pelletizing system 7, spark detection device 8, fire-smothering gear 9, Sui's powder jetting device 16, explosion-protection equipment (10,11), device for detecting temperature 12, extinguishant jetting device 13, interlocking protective device and interlocking protective device control system that dust explosion protection is associated; realize the safe prediction of dust explosion protection system, early warning and interlock protection, reduce the danger of dust explosion.
The ball blast abrasive blast equipment 1 be somebody's turn to do carries out row ball blast sandblasting processing to the roughness of surface of metal product, adopt the effect of gases at high pressure, mechanical force that pellet, sand material are sprayed the surface of clashing into processed goods, make shaggy metallic article promote surface smoothness and obtain corresponding face table hardness; Produce dust release in surface of metal product ball blast sandblasting process and dust flies away and occurs spark and cause burning, exist and cause the danger of dust explosion occurs;
This ball sand conveying device 2, comprise: bucket lifting device, helix transporting device, scraping plate conveying device or Pneumatic conveyer, this ball sand conveying device is used for the pellet of ball blast abrasive blast equipment use, the conveying (comprising the conveying of the pellet of circulation, sand material) of sand material;
This ball sand storehouse 3, for the pellet of ball blast abrasive blast equipment use, the bin stock of sand material;
This ball sand separating apparatus (4,17), for the device that ball blast abrasive blast equipment is separated the pellet recycled, sand material;
This exhaust system 6 and dust pelletizing system 7 adopt negative pressure filtration to absorb dust.Particularly, this exhaust system 6 comprises blower fan, and is arranged on air main and the discharge pipe at these blower fan two ends, and one end of this air main is connected with blower fan, and the other end is connected with this ball sand separating apparatus (4,17).During blower fan work, air main is in negative pressure state.This dust pelletizing system comprises deduster, and this deduster is arranged on this air main.
This spark detection device 8, comprise: spark detection and sensor-based system, early warning and warning device and spark detection device and fire-smothering gear control the interlocking protective system started, the detecting location of this spark detection device 8 is arranged on that the front end of this ball sand conveying device 2 and the junction in ball sand storehouse, ball sand separating apparatus (4,17) are inner, ash dropping hopper place in the air inlet of dust pelletizing system 7 and/or the deduster of dust pelletizing system 7, and spark detection device 8 occurs spark for detecting in ball blast sandblasting process and causes burning;
This fire-smothering gear 9, comprise: the high-pressure bottle of splendid attire fire-suppressant gas, fire-suppressant gas conveyance conduit, air valve and air pressure display device, fire extinguishing jet device, and fire-smothering gear starts control interlocking protective device, the sprayer for extinguishing fire exit point of this fire-smothering gear 9 is arranged on ball blast abrasive blast equipment 1 inside, the air inlet of this dust pelletizing system 7 and ash dropping hopper place, fire-smothering gear 9 is for when there is spark and cause burning in the detection of this spark detection device 8, control interlocking protective device and the system of spark detection device 8 and this fire-smothering gear 9 start, fire extinguishing jet device sprays the burning that release high-pressure extinction gas extinguishes spark and causes,
This Sui's powder jetting device 16, comprise: the container of splendid attire Sui powder, Sui's powder conveying pipeline, pipeline valve and powder jetting pressure-display device, Sui's powder spray nozzle and Sui's powder jetting device start control device, this Sui's powder jetting device 16 spray site is arranged on the air inlet of this dust pelletizing system 7, for Sui's powder jetting is inner to deduster, the dust of deduster inside is made to lose combustion characteristics;
This explosion-protection equipment (10,11) is arranged on the front end of this ball sand conveying device 2 and the junction in ball sand storehouse 3, exhaust system 6 and the air main place of dust pelletizing system 7 and the top of deduster; This explosion-proof explosion venting device 10 for not yet reach the corresponding installation site of this ball sand conveying device at blast pressure antidetonation strength before, adopt explosion-proof explosion venting device 10 to discharge explosion product, make the air main of ball sand conveying device 2, exhaust system 6 and dust pelletizing system 7 and deduster unlikely destroyed; This explosion-proof explosion venting device 10 is located in factory building for the venting of dust explosion mouth of explosion-proof explosion venting device, venting of dust explosion mouth is towards the explosion-proof explosion venting device of nonflame relating to deathtrap and adopt; This explosion isolation device 11 is for blocking the flame of the air main of exhaust system 6 and dust pelletizing system 7 and deduster appearance and blast wave in certain scope; When this explosion-protection equipment (10,11) also sends enabling signal and induced signal for explosion-proof explosion venting device, the explosion-proof explosion venting device of nonflame and explosion isolation device, start the control interlock protection of this fire-smothering gear, extinguishant jetting device;
The monitoring probe of this device for detecting temperature 12 is arranged on this ball blast abrasive blast equipment 1, ball sand separating apparatus (4,17) place, the air outlet place of deduster of dust pelletizing system 7 and ash dropping hopper place, this device for detecting temperature 12 is for monitoring this powder dust pelletizing system temperature and exceeding safety limit alarm, occur spark and cause ignition temperature to respond to alarm, and this device for detecting temperature 12 and this fire-smothering gear 9, extinguishant jetting device 13 start and control interlock protection;
This extinguishant jetting device 13, comprise: the high-pressure bottle of splendid attire extinguishing chemical, extinguishing chemical conveyance conduit, pipeline valve and pressure-display device, extinguishing chemical jet blower, and extinguishant jetting device starts control interlocking protective device, this extinguishing chemical jet blower is arranged on the top in ball blast abrasive blast equipment 1, top in the air main of exhaust system 6 and dust pelletizing system 7 and deduster, this device for detecting temperature 12 monitors ball blast sandblasting processing, when there is spark and cause ignition temperature induction alarm in exhaust system 6 and dust pelletizing system 7, this extinguishant jetting device starts control interlock protection,
The Electro-static Driven Comb that this anti-static grounding protective device 5 occurs for the process units and production process eliminating this processing.
This interlocking protective device and interlocking protective device control system; for startup and the system protection interlocked control of this spark detection device 8, fire-smothering gear 9, Sui's powder jetting device 16, explosion-protection equipment (10,11), device for detecting temperature 12, extinguishant jetting device 13, realize the prediction of dust explosion protection security of system, early warning and interlock protection.
Alternatively, pipe diameter and the wind speed of this exhaust system 6 and dust pelletizing system 7 meet the demands, and make laying dust in pipeline and dust concentration meets related request.
Alternatively, this this dust pelletizing system 7 adopts pulse backblowing sack cleaner, is located at exhaust system negative pressure section, this pulse backblowing sack cleaner corner is through radiused process, adopt fire-resistant antistatic material filter bag, be easy to deashing not laying dust, pulse backblowing pressure is provided with monitoring alarm.
Alternatively, the import and export of this this pulse backblowing sack cleaner are provided with blast pressure reduction monitoring alarm 14, whether the operation conditions that this blast pressure reduction monitoring alarm 14 is used for monitoring dust pelletizing system is normal, in case cloth bag laying dust is blocked up, reduces the hazard index of system.
Alternatively, this pulse backblowing sack cleaner is provided with lock gas ash-discharging device 15, namely locks gas continuously and unloads grey monitoring device 15, and running is abnormal can send sound and light alarm.Be arranged on bottom this pulse backblowing sack cleaner, remove the dust filtered down in time, dust is not accumulated, reduce the danger of system.
It should be noted that, in this this ball blast abrasive blast equipment dust explosion protection protection system, the anti-static grounding such as all metallic conductors and filter bag meets the requirement of relevant criterion, for eliminating the Electro-static Driven Comb that this ball blast sand blasted surface process, air draft and dust pelletizing system occur.
Alternatively, the dust explosion protection region electrical system that this ball blast abrasive blast equipment dust explosion protection protection system is somebody's turn to do meets the requirement of Explosion-proof Design.
In the present embodiment; this ball blast abrasive blast equipment dust explosion protection protection system is by spark detection device, fire-smothering gear, Sui's powder jetting device, explosion-protection equipment, device for detecting temperature, extinguishant jetting device, interlocking fit between interlocking protective device and interlocking protective device control system; realize the dust explosion protection protection of ball blast blasting treatment process, reduce the dust release that produces in surface of metal product ball blast sandblasting process and dust flies away and occurs spark and cause burning that the security risk of dust explosion risk easily occurs.
Above ball blast abrasive blast equipment dust explosion protection protection system provided by the present invention is described in detail; for one of ordinary skill in the art; according to the thought of the embodiment of the present invention; all will change in specific embodiments and applications; in sum, this description should not be construed as limitation of the present invention.

Claims (10)

1. ball blast abrasive blast equipment dust explosion protection protection system, is characterized in that, comprising:
Ball blast abrasive blast equipment, ball sand conveying device, ball sand storehouse, ball sand separating apparatus, exhaust system, dust pelletizing system, spark detection device, fire-smothering gear, Sui's powder jetting device, explosion-protection equipment, device for detecting temperature, extinguishant jetting device, interlocking protective device and interlocking protective device control system;
One end of described ball sand conveying device is connected with the outlet of described ball blast abrasive blast equipment, and the other end is connected with the entrance in described ball sand storehouse;
The outlet in described ball sand storehouse is connected with the entrance of described ball blast abrasive blast equipment;
Described exhaust system comprises blower fan and is arranged on air main and the discharge pipe at described blower fan two ends, and one end of described air main is connected with blower fan, and the other end is connected with described ball sand separating apparatus;
Described dust pelletizing system comprises deduster, and described deduster is arranged on described air main;
The outlet of described ball blast abrasive blast equipment is communicated with by the entrance of pipeline with described ball sand separating apparatus;
The detecting location of described spark detection device is arranged on that the front end of the junction in described ball sand conveying device and ball sand storehouse, ball sand separating apparatus are inner, ash dropping hopper place in the air inlet of dust pelletizing system and/or the deduster of dust pelletizing system;
The sprayer for extinguishing fire exit point of described fire-smothering gear is arranged on that described ball blast abrasive blast equipment is inner, the air inlet of described dust pelletizing system and ash dropping hopper place;
The spray site of described Sui powder jetting device is arranged on the air inlet of described dust pelletizing system;
Described explosion-protection equipment is arranged on the front end of the junction in described ball sand conveying device and described ball sand storehouse, described exhaust system and the air main place of dust pelletizing system and the top of described deduster;
The monitoring probe of described device for detecting temperature is arranged on described ball blast abrasive blast equipment, described ball sand separating apparatus place, the air outlet place of deduster of described dust pelletizing system and ash dropping hopper place;
The jet blower of described extinguishant jetting device is arranged on the top in the top in described ball blast abrasive blast equipment, the air main of described exhaust system and dust pelletizing system and deduster;
Interlocking protective device and described interlocking protective device control system communicate to connect; control by described interlocking protective device control system; described spark detection device, fire-smothering gear, Sui's powder jetting device, explosion-protection equipment, device for detecting temperature and described extinguishant jetting device are electrically connected with described interlocking protective device respectively, realize interlocked startup by described interlocking protective device.
2. ball blast abrasive blast equipment dust explosion protection protection system according to claim 1, is characterized in that, described ball sand conveying device comprises: bucket lifting device, helix transporting device, scraping plate conveying device or Pneumatic conveyer.
3. ball blast abrasive blast equipment dust explosion protection protection system according to claim 1; it is characterized in that, described fire-smothering gear comprises: the high-pressure bottle of splendid attire fire-suppressant gas, fire-suppressant gas conveyance conduit, air valve and air pressure display device, fire extinguishing jet device and fire-smothering gear start and control interlocking protective device.
4. ball blast abrasive blast equipment dust explosion protection protection system according to claim 1; it is characterized in that, described Sui powder jetting device comprises: the container of splendid attire Sui powder, Sui's powder conveying pipeline, pipeline valve and powder jetting pressure-display device, Sui's powder spray nozzle and Sui's powder jetting device start control device.
5. ball blast abrasive blast equipment dust explosion protection protection system according to claim 1, it is characterized in that, described explosion-protection equipment comprises explosion-proof explosion venting device, nonflame explosion venting device and explosion isolation device.
6. ball blast abrasive blast equipment dust explosion protection protection system according to claim 1; it is characterized in that, described extinguishant jetting device comprises: the high-pressure bottle of splendid attire extinguishing chemical, extinguishing chemical conveyance conduit, pipeline valve and pressure-display device, extinguishing chemical jet blower and extinguishant jetting device start and control interlocking protective device.
7. ball blast abrasive blast equipment dust explosion protection protection system according to claim 1; it is characterized in that; also comprise anti-static grounding protective device; described anti-static grounding protective device one end ground connection, the other end is connected with described ball sand conveying device, described ball sand separating apparatus, described deduster and described blower fan respectively.
8. ball blast abrasive blast equipment dust explosion protection protection system according to claim 1, it is characterized in that, described deduster is pulse backblowing sack cleaner;
Described pulse backblowing sack cleaner is provided with radiused corner, and adopts fire-resistant antistatic material filter bag.
9. ball blast abrasive blast equipment dust explosion protection protection system according to claim 8, is characterized in that, the import and export of described pulse backblowing sack cleaner are provided with blast pressure reduction monitoring alarm.
10. ball blast abrasive blast equipment dust explosion protection protection system according to claim 8, is characterized in that, the bottom of described pulse backblowing sack cleaner is provided with lock gas ash-discharging device.
CN201610029936.6A 2016-01-15 2016-01-15 System is protected in the dust explosion protection of ball blast abrasive blast equipment Active CN105538169B (en)

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CN109126498A (en) * 2017-06-15 2019-01-04 南京天本安全技术有限公司 The continuous Automatic Dosing explosion suppression device of dust pelletizing system
CN109857069A (en) * 2018-12-29 2019-06-07 金方圆安全技术研究院(苏州)有限公司 A kind of dust explosion protection intelligence pressure relief system control integrated system
CN110038244A (en) * 2019-04-15 2019-07-23 徐工集团工程机械有限公司 One kind sandblast extinguishing device and the extinguishing vehicle that sandblasts, sandblast towed vehicle
CN110076038A (en) * 2019-05-15 2019-08-02 金方圆安全技术研究院(苏州)有限公司 Powder working process coating equipment is datonation-inhibition and datonation-inhibition gas leak protection intelligence control system
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CN113262585A (en) * 2021-05-28 2021-08-17 广东金方圆安全技术检测有限公司 Explosion suppression control system of laser welding dust remover

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