Waterproof closed doors waterproof waterproof closed doors closed doors must meet the following requirements: 1, the construction and the quality waterproof closed doors, must meet the design requirements. Substation and gate chamber are not leaking. 2, waterproof closed doors before the chamber, at both ends, it should be less than 5m respectively concrete masonry retaining arch after arch with concrete infill, not free help, empty top. Water gate chamber and retaining arch must be reinforced using high-grade cement grouting, grouting pressure should meet the design requirements; 3, waterproof door must be finalized and permits manufacturers to design and manufacturing. Our inspection reports and fully qualified to go down. 4, water inflow side of the closed door at 15 ~ 25m, should be added a block material grate door. Watertight door between the door and the grate shall park a vehicle or piled debris. First off when runoff grate door, shut the door waterproof. If two-way waterproof door, should each have a grate doors on both sides; 5, by rail, motor vehicles and other overhead lines must be flexible watertight doors easy to dismantle, waterproof when closed the door, quickly removed; watertight door through the wall of various piping and install on the outside of the gate of the gate voltage capability, must be designed with a waterproof gate consistent pressure; watertight door through the wall of cables, pipes, must be blocked with plugs and valves tight, not leaking ; 6, waterproof closed doors must install the observed pressure device, and put the plumbing and drain gates; 7, after the completion of the waterproof door, the chief engineer in charge of the mine to be relevant by the organization, in accordance with the design requirements for acceptance; new roadway while building waterproof door, water pressure test must be carried out, the length of the water gate roadway shall not exceed 15m, a pressure test of not less than the design pressure, and its stability over time should be at 24h, pressure test should have a special security measures, and approved by the mining engineer. 8, water should be able to quickly shut the door in the event of a sudden when gushing. Water pumping station outside the door should be open. 9, waterproof doors closed test twice a year, tools and parts waterproof closed doors, it must appoint a special place to store, and have the person responsible for the custody, shall not be lost misappropriated. 10, waterproof closed doors should establish a regular inspection and maintenance system. Inspection, maintenance, identify problems and timely treatment. Closed doors - Waterproof closed doors we wasted too much youth, so it was a self-righteous, and so find the youth, there is laughter, there are tears; waterproof closed doors - we insist on the best. Energetic, there are decadent; waterproof closed doors - we insist on just fine. There are sweet, but also absurd; waterproof closed doors - we never give up. Confident, but also confused. Waterproof closed doors - we insist on innovation. We are sensitive, we are paranoid, we are stubborn in the end to pretending to be strong; we easily hurt others, but also easily hurt by others, we chase in the decadent pleasure, revel in the beauty of loneliness; we believe differentiate themselves, convinced that the world Because I will change; we awaken in fact, we are no longer young, our future may no longer be infinite, in fact it ever is infinite? Once in a moment, we all thought he was grown up. But one day, we finally found the meaning of growing up in addition to the desire to have the courage, responsibility, strong, and some must sacrifice. In the face of life we ??are all children, in fact, we never grow up, do not understand love and be loved. Waterproof closed doors the main structure have? A watertight doors closed doors for flat steel, Tic-Tac-ribs, ring beams welded peer group; two frames for the channel, beam composite frame; 3 tensioning device wedge slider wedge; 4 pivot adoption Rolling support. Closed doors - Waterproof closed doors for the main substation within the underground drainage pumping station and the main channel leading to the shaft bottom, easy to shut down to prevent sudden immersion of water. The maximum pressure for closed doors 98KPa. Waterproof closed doors parameters Model Example: No. Model Specification Weight kg 1 MMB1.4 * 1.8 B85-373 1123 2 MMB1.6 * 1.8 B85-373 1194 3 MMB1.8 * 2.0 B85-373 1319 4 MMB2.1 * 2.0 B85- 3,731,430 waterproof closed doors Notes (1) check on the construction site of the gas concentration, carbon dioxide and other harmful gases. Construction site must be well ventilated, gas, carbon dioxide concentration does not exceed the "Coal Mine Safety Regulations" requirement. (2) supporting the roof construction sites before and after the examination, Lane 5m to help, identify problems and timely reporting, processing, before construction after no risks. (3) To re undercutting wall surrounding see hardtop, and with the help of hard coal and rock solid connection; no cracks in the walls smooth, heavy and empty sewn seam. Cutting should note the following: (4) requires fire doors, closed the door in the wall through the cable line, when the drywall to reserve opening position, the cable passes to set up over the line and press the cable pipe hanging neatly spacing. (5) fire doors, closed the door of the wall to use non-combustible building materials, strict no leakage. When the brick wall with pressure stubble should be staggered transverse joints to be level, arranged neatly. 1: 3 gray sand proportion to the preparation of mortar. (6) In the puzzle of fire doors, closed door process, other people close to the operating personnel is prohibited to prevent tools, materials falling injured personnel. Fire watertight doors, watertight doors closed, fire waterproof mine closed doors closed doors in the main substation and the main coal mine drainage pumping stations leading to the shaft bottom of the channel, fireproof waterproof closed doors MMB1.6 * 1.8 only with 14mm cold plate manufacturing, well-shaped stiffeners attached plate 32, the door shaft bearings using high-density fine, surrounded with eight locking device, this door weight without stupid, thick reinforced door combined with high-density board, can effectively prevent high pressure strength, advanced technology combined with locking device seals around the sealing effect is foolproof. Fine door shaft bearings make such a heavy iron gate open and close freely, fireproof waterproof closed doors making more carefully, so you use more assured.