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Ventilators should know and be able to-facility workers
Release time:
2023-01-09
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Ventilators should know and be able to-facility workers
Facilities
1. induction conditions
(1) Facilities workers must pass professional and technical training and take up their posts with valid certificates.
(2) Be familiar with mine ventilation system and avoid disaster route.
(3) familiar with mine ventilation structures (permanent air door, temporary air door, air window, air measuring station, permanent airtight,Temporary closure) of the role, installation methods and requirements.
(4) to understand the coal mine gas, coal dust explosion knowledge.
(5) Master the provisions of the Coal Mine Safety Regulations on ventilation structures.
(6) Grasp the provisions of the ventilation facilities section of the Standard for the Safety and Quality of Ventilation in Coal Mines.
(7) Understand the hazards and prevention knowledge of various underground gas overrun.
2. preparation
(1) Before the construction of ventilation facilities such as airtight, air door and air measuring station, it is necessary to carefully study the procedures and measures and relatedKnowledge.
(2) Prepare small materials and tools to carry with you.
(3) Plan the required materials and notify the relevant personnel to load the materials. Special personnel shall be responsible for the shipment of materials.All kinds of materials shall not exceed the height and width of the tramcar after loading. The loading shall be neat and balanced at both ends.
(4) Before the material car enters the well, it must contact the dispatching room and relevant units; the transportation shall be strictly followed.The relevant provisions of the door.
(5) underground loading and unloading materials to take care of each other, by the lane help stacked materials to be neat, shall not affect the transportation,Ventilation, pedestrian.
3. operation method
(I) building permanent ventilation facilities
1. Cut
（01) cutting should generally be carried out according to the principle of first up and then down, and the coal and gangue taken out should be transported away in time, roadwayShould be cleaned up.
(2) The cutting depth must meet the specified requirements. See the actual bottom. The cutting depth of rock roadway is 200mm,The cutting depth of coal roadway is 500mm.
(3) Before the masonry facilities of the masonry roadway, the arch cut shall be removed, and the anchor net support roadway shall be opened after the anchor net is removed,And according to special safety measures for construction.
(4) When cutting with a hand pick, it should be operated at a safe place. No one is allowed to stand in front to prevent the pickaxe from hurting people.
(5) Use a drill to cut the groove. Hammer people should take care of the surroundings to prevent injury by mistake.
2. Install the door frame
(1) Before installing the door frame, according to the marks made by carpenters on the door frame, first assemble and match on the bottom plate, and sendThe current deformation shall be trimmed in advance.
(2) When installing the door frame, the door frame must be level with a level gauge, and the angle of the door frame must be confirmed by the hanging wires on both sides.Set it up, then pull the diagonal to check whether the door frame is crooked. After the inversion, angle, level and spacing are determined,Fix each part of the door frame with a pull rod to ensure that the door frame is not shaped when building the wall.
3. Walls
(1) After the top, help and bottom have been cut out according to regulations, the bottom shall be paved. When laying the bottom, cement and fine sand shall be compared according to the ratioFor example, the bottom groove is paved with 50~80mm thick mortar, and then each layer of brick or stone is built by laying bricks or stones.
(2) When building the wall, the wire shall be hung first, and then the wire shall be pulled layer by layer. The material and stone shall be placed with the big head facing outward to make it gray.The pulp is full and the wall is straight.
(3) material stone wall layer and layer to bite each other, stubble pressure is not less than 1/4, do not have empty seam, dry seam,Blind sewing, re-sewing.
(4) Each stone shall be leveled, and the supporting stone shall be made of stone pieces and shall not be replaced by other materials.
(5) build the air door wall, the top frame down the wall surface and the door frame to maintain an inclined plane according to the specified requirements, the top frameKeep vertical up.
(6) When the wall of the wind station is built, the material stone and the roadway wall shall be filled fully according to the requirements of the regulations, and shall not be left.There are gaps.
(7) When building the wall of the permanent air door, check the angle and diagonal of the door frame at any time.
(8) When the wall is built to be in line with the door frame, I-beam or non-combustible shall be placed between the upper part of the air door and the air door.Material load-bearing beams.
(9) When constructing the air door and wind barrier wall, the working platform shall be set up when the pile is built to a certain height. Operation platform can beIt shall be made of square wood or wooden board, and the platform shall be firm and stable.
(10) When the anchor net supports the roadway, when the wall is built to a certain height from the roof, the anchor net shall be cut section by section, andWhen the top of the live coal, live gangue clean up, to see the hard top.
(11) When the masonry wall is at a certain distance from the top plate, it shall be capped from the inside to the outside, and the material stone and the top plate shall be reserved.A certain gap shall be filled with gravel or mortar to ensure tightness and no air leakage.
(12) After the wall is finished, the wall surface shall be painted or jointed. To be done from top to bottom,The jointing width should be the same. When coating the surface, the first time with coarse ash, sand ash ratio 1:3, the second time with fine ash, ashThe sand ratio is 1:1, and the edge is smear with a ruler to check to ensure that the wall meets the quality standard requirements.
(13) When the windbreak wall is sketched or jointed, a skirt with a width of not less than 100mm shall be reserved around according to the standard.
4. Install the damper
(1) After the air door wall and door frame are completed, the air door shall be installed, and the fully matched door shaft shall be tightened according to regulations,Screw and other accessories.
(2) Make a hole in the door frame before installing the wind. In front of your eyes, first lean the air door against the door frame and mark the door shaft eye.Position, or measure the size of the damper belt sleeve first; Then mark the size of the damper belt sleeve with the relative position of the door frame,Only then can the eye be punched. When drilling, the twist drill shall be vertical to the door frame and shall not be tilted or twisted.
(3) After the door shaft eye is made, screw on the door shaft to the door frame, and then hang the air door on the door shaft;When installing the door shaft, gasket must be added between the door shaft and the door frame; after the door shaft is installed, the thread of the door shaft is sheathed.line protection.
(4) After the air door leaf is installed, it should be carefully checked repeatedly to see if the contact between the door leaf and the door frame is tight. appearLight transmission and bevel should be handled in time. Finally, the door frame should be wrapped along the edge, nail adhesive tape, and the safety door interlocking device should be protected.Certificate damper interlocking.
5. Project Closure
(1) After the permanent facilities are completed, the walls shall be whitewashed with white ash or white cement.
(2) Anti-corrosion treatment shall be carried out on the air door, and a warning sign "Close the door with you" shall be nailed on the air door.
(3) After the permanent air door is completed, clean up the debris 5m before and after the air door.
(4) After the permanent seal is completed, the 5m outside the closed wall shall be well supported, standardized fence shall be set up and hung.Work sign board, maintenance sign board, police sign board, etc.
(5) After the construction is completed, the remaining materials shall be recovered in time to ensure that the construction site is completed, the materials are clean,The venue is clear.
(II) temporary ventilation facilities
1. Temporary slab wall
(1) Reinforce two adjacent support sheds, and support the top brake bar or other backs in the middle of the built facilities.Remove the help, then open the help and pick it to the hard top.
(2) After the top is opened, lay a square wood or a large board there. The square wood or a large board should be laid on the solid bottom, and the topThe department uses a wooden wedge and the top plate to add solid. When hitting the column, one person supports the column and one person hits the column.
(3) After the pillars are laid, the boards are nailed from top to bottom, and the lower board is pressed on the upper board to formFish-like lap. The plank head shall be connected with the perimeter of the roadway.
(4) After the wooden wall is nailed, start and mud the wall. The wall surface shall be plastered according to the requirements of the regulations.
2. Temporary sealing
(1) Reinforce an adjacent support shed, and support the top brake bar or other backs in the middle of the built facility.Remove the help, then open the help and pick it to the hard top.
(2) After the top side is opened, hit four square logs or large boards here. The square logs or large boards should be hit on the solid bottom,The top is backed with a wooden wedge and the top plate. When hitting the column, one person supports the column and one person hits the column. After the wooden column is played, it startsThe boards are nailed up and down, and the lower boards are pressed against the upper boards to form a fish-scale lap. Board head and roadwaySurrounding solid.
3. Temporary damper
(1) first of all, the roadway scum should be cleaned up, according to the provisions of the requirements of cutting.
(2) The column installation should be firm, and a certain inclination angle should be set; The return air side should be supported with wood, and when the wind pressure is largeCross beams shall be set on the upper sill lintel on the return air side and firmly embedded in the two sides of the roadway.
(3) When the door frame is stabilized and the wood board is nailed, the upper and lower wood boards shall be overlapped in fish scale type, nailed from top to bottom, and the pressure differenceThe width shall not be less than 20mm, and the top and lower sides shall be pressed and contact the solid stubble in the groove.
(4) After the boards are nailed together, the slag shall be removed and the joints shall be smeared, and the sundries shall be removed, and the joints shall be jointed or plastered with cement or white ash.Face, to ensure that the wall, around no leakage of wind.
(5) After the cement slurry is solidified, the damper leaf can be installed, and the installation and adjustment of the door leaf are the same as those of the permanent damper.
4. considerations
(1) when cutting, should stand in a safe place to operate, not standing in front, to prevent hand pick injury.
(2) When there is water in the wall, an iron pipe must be buried in advance for drainage, and a valve must be installed at the outer mouth of the water pipe.
(3) When constructing facilities and carrying out related work in roadways with transportation equipment, you must first contact the relevant units.Contact, construction can only be carried out after the power failure card is managed, and after the construction is completed, the power failure card will be taken off and the power will be switched on and transmitted.
(4) When constructing facilities in the rail transportation roadway, pay attention to the vehicles to ensure safe construction.
(5) Before maintaining the facilities, the roof of the roadway must be checked, and the "damper maintenance card" must be hung, and it is forbiddenPersonnel pass through to prevent the two air doors from opening at the same time, so as to achieve safe construction.
(6) When building a permanent air door, if there is a ditch, a reverse pool or windshield curtain should be set.
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