Explosion proof wire rope hoist is a kind of electric hoist which is designed for the hazardous environment material handling. How is explosion proof wire rope hoist protect classification divided? Check on explosion proof wire rope hoist and explosion proof classification now!
Explosion proof electric wire rope hoist - Dongqi wire rope hoist
Explosion proof wire rope hoist is a type of explosion proof electric hoist, which is a specially designed material handling equipment with the features of explosion proof. Explosion proof wire rope hoist and explosion proof equiment (explosion proof cranes) is designed and manufactured according to GB3836-2000 provisions and international regulations, with the explosion proof mark of D II BT4, and D II CT4, which can be supplied to applications that has the level of II A, II B, II C grade, the temperature sub-groups T1-T4 group of combustible gas, steam and air from the explosion gas mixtures in a zone, zone 2 areas. The lifting capacity of explosion proof wire rope hoist is 0.5 to 16 tons and working class of explosion proof hoist is M3.
The main parameters of Explosion proof wire rope hoist hoist is as follow:
Explosion proof wire rope hoist is one type of explosion proof equipment, which can be used on the main I-beam track to run in straight or curve line to handle materials or installed on a fixed bracket as a lifting solution for heavy loads. Explosion- proof wire rope hoist also can be fixed to different applications, working with explosion proof single girder overhead travelling crane or with the explosion proof dual beam bridge crane, etc.
3 ton explosion-proof electirc wire rope hoist |
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Lifting speed nomal speed(slow speed) |
m/min |
8(0.8) |
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Traveling speed |
m/min |
10 |
||||||
Lifting motor |
kw |
4.5/0.4 |
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Traveling motor |
kw |
0.4 |
||||||
Traveling rail |
|
20a~32c |
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Lifting height |
m |
6 |
9 |
12 |
18 |
24 |
30 |
|
Min curvature radius |
m |
2.0 |
2.0 |
2.0 |
2.5 |
3 |
4 |
|
Dead speed(single speed) |
kg |
332 |
352 |
392 |
432 |
472 |
512 |
|
Dead weight(double speed) |
411 |
431 |
471 |
511 |
551 |
591 |
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5 ton explosion-proof electirc wire rope hoist |
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Lifting speed nomal speed(slow speed) |
m/min |
8(0.8) |
||||||
Traveling speed |
m/min |
10 |
||||||
Lifting motor |
kw |
7.5/0.8 |
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Traveling motor |
kw |
0.8 |
||||||
Traveling rail |
|
25a~63c |
||||||
Lifting height |
m |
6 |
9 |
12 |
18 |
24 |
30 |
|
Min curvature radius |
m |
2.5 |
2.5 |
2.5 |
3 |
4.0 |
5.0 |
|
Dead speed(single speed) |
kg |
479 |
502 |
550 |
595 |
610 |
685 |
|
Dead weight(double speed) |
617 |
640 |
688 |
733 |
778 |
823 |
||
10 ton explosion-proof electirc wire rope hoist |
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Lifting speed nomal speed(slow speed) |
m/min |
7(0.7) |
||||||
Traveling speed |
m/min |
10 |
||||||
Lifting motor |
kw |
13/1.5 |
||||||
Traveling motor |
kw |
0.8 |
||||||
Traveling rail |
|
25a~63c |
||||||
Lifting height |
m |
6 |
9 |
12 |
18 |
24 |
30 |
|
Min curvature radius |
m |
2.5 |
3.5 |
4 |
6 |
7.5 |
9.0 |
|
Dead speed(single speed) |
kg |
794 |
914 |
1034 |
1234 |
1434 |
1634 |
|
Dead weight(double speed) |
1070 |
1190 |
1310 |
1510 |
1710 |
1910 |
More and more coal mining enterprises and exploration project like to choose explosion-proof electric hoist in their project. So in order to select the suitable explosion proof hoist in the process of purchase and ensure safe operation in the process of using we should understand the explosion-proof classification of protection level.
According to the national standard "GB10222-2001 explosion-proof electric wire rope hoist", "GB12476,1-2000 explosive dust atmospheres dust explosion-proof electrical equipment explosion-proof electrical equipment",”GB3836,1-2000 electrical equipment for explosive atmospheres - Explosion provision of electrical equipment "d"’, explosion-proof electric hoist level can be divided into DIIBT4、DIICT4 and DIPA20TAT4, which is suitable for dangerous situation in the factory and place with mixing explosive dust article and explosive gas mixtures. The explosion-proof electric hoist can be hung on the I beam to move in a straight line or curve line.
There are two types of electrical equipment using in prescribed conditions will not cause an explosive burning environment:
Type II can be divided into IIA/ IIB/ IIC.
Table 1 |
|
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T1 |
T2 |
T3 |
T4 |
T5 |
T6 |
|
450 ℃ |
300 ℃ |
200℃ |
135 ℃ |
100 ℃ |
85℃ |
|
Explosion-proof electric hoist is mainly divided into three degree of protectionⅡA, ⅡB, ⅡC , temperature class T1-T4 which apply for the place with flammable gas or explosive gas, steam and air mixture.
Explosion-proof electric hoist can be divided into B grade and it is generally applicable in zone 1 and zone 2 and the applicable temperature mainly from T1-T6. As for T6, if the place reaches this level which means that the highest temperature limit. For example, DIICT4 which means that: “d “for flameproof type;” II” is on behalf of Class II explosion, namely Plant Explosion.; “C” can be used on behalf of C-level explosion-proof area, which is also available for the most dangerous areas; “T4” for temperature class. Now, the explosion-proof electric hoist is frequently with DIICT4 level.
Please check out the following common classification of proof level and dangerous gases.
Dangerous gas type EX IIBT4
Ethane, propane, butane, heptane, ethylene, carbon monoxide, gasoline, acetone, styrene, toluene, benzene, methanol, ethanol, vinyl chloride, acetaldehyde, EX IICT4
And the Hydrogen gas, water gas except EXIICT4.
Table 2 |
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temperature group |
T1 |
T2 |
T3 |
T4 |
T5 |
T6 |
class |
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Ⅱ A |
methane, toluene, methyl ester, ethane, propane, acetone, acrylic acid, benzene, styrene, carbon monoxide, acetic ether, acetic acid chlorobenzene, methyl acetate, ammonia |
methanol, ethanol, ethyl benzene, propanol, propylene, butanol, butane, butyl acetate, amyl acetate,cyclopentane |
Pentane, amyl alcohol, hexane, hexanol, heptane, octane, ring ethanol , turpentine, naphtha, petroleum, (including gasoline), fuel oil, amyl alcohol tetrachloro |
Acetaldehyde, trimethylamine |
|
ethyl nitrite |
Ⅱ B |
Propylene, dimethyl ether, town gas |
Butadiene, propylene oxide, ethylene |
Dimethyl ether, acrolein, and hydrocarbon |
diethyl etherethyl oxide |
|
|
Ⅱ C |
Hydrogen, water gas |
Acetylene |
|
carbon disulfide |
ethyl nitrate |
|
Various types of explosion proof hoist and explosion proof crane and other lifting equipment are avialbe from Dongqi Crane. Please contact us for more informaiton on the explosion proof hoist!
As a hoist manufacturer and supplier, Dongqi Hoist and Crane offers types of electric hoists for customers, mainly electric chain hoist and wire rope hoist, etc. Dongqi wire rope hoists offering includes single / double speed hoist, low headroom hoist, explosion proof hoist, safety hoist, etc. The hot wire rope hoists are presented for your referencef in the following:
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