Shandong Sheng Coal Mining Machinery Co

b: > : (,,) : . : b >Mining closed door
: (,,) : . : b >Shandong Shengmei Mining Machinery Co., Ltd.< <>< <>< < >Manager Kong
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c (,,)> : (,,) : . : b >Mining closed door yesterday
: bc (,,) (,,) : (,,)>I dreamed that God said he could satisfy me a wish
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: bc (,,) (,,) : (,,)>I
: bc (,,) (,,) : (,,)>I want the best mine closed door
: bc (,,) (,,) : (,,)>, he said it is too difficult to replace it. , I took out your photo and said I wanted this person to become beautiful. He pondered for a moment and said: bc (,,) (,,): (,,)> Mine sealed door drawings
: bc (,,) (,,) : (,,)>I'll take a look.
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b: > : : : >The function of mine airtight doors is to prevent sudden intrusion of water Immerse in the passage from the underground main substation and main drainage pump room to the underground car yard.
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b: > : : : >National security is a major matter, and mine safety cannot be underestimated. Mine airtight doors are the most important safety doors in mines. First, the mine waterproof closed door can resist
: : : > water pressure, prevent water from suddenly entering, and enhance the safety factor of the mine underground.
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b: > : : : >Installation precautions for mine airtight doors:
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b: > : >(< <>) Check the concentration of harmful gases such as gas and carbon dioxide at the construction site. The construction site must be well ventilated, and the concentration of gas and carbon dioxide gases shall not exceed the provisions of the "Coal Mine Safety Regulations".
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b: > : >(< <>) Check the support conditions of roofs and lanes at the front and rear of the construction site, and report and deal with any problems found in a timely manner , construction can only be carried out after there are no hidden dangers.
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b: > : >(< <>) The perimeter of the wall should be re-grooved to see the hard top and hard sides, and the wall should be solid and smooth with coal and rock. Cracks, heavy seams and empty seams. The following points should be noted when digging:
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b: > : > (< <>) It is necessary to pass cable lines through fire doors and sealed door walls. When building the wall, the opening position should be reserved. When cables pass through, wire conduits should be installed and arranged neatly according to the cable suspension spacing.
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b: > : >(< <>) Fire doors and closed door walls must be constructed of non-combustible materials and must be airtight and airtight. When building a wall with bricks, the stubble should be staggered, the horizontal joints should be level, and the arrangement must be neat. Prepare mortar according to the ratio of dust and sand in <<>:<<>.
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b: > : >(< <>) During the process of building fire doors and airtight doors, other personnel are strictly prohibited from approaching the operator to prevent tools and materials from falling. Falling and injuring people
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b: > : : : >Shandong Shengmei Mining Machinery Co., Ltd. is the designated manufacturer of underground mining doors for coal mines, and has the designation issued by the China Coal Industry Association The manufacturer's certificate also has an inspection report issued by the relevant department. We will bring the inspection report and the certificate together with the shipment.
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b: > : (,,) : . : b >Sales details consultation: < <>Manager Kong
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b: > : (,,) : . : b >Technical and after-sales service consultation: <
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b: > : (,,) : . : b >Shandong Shengmei Mining Machinery Co., Ltd.< <>< <>< <>Manager Kong
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b: > : (,,) : . : b >Shandong Shengmei Mining Machinery Co., Ltd.< />
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