1, the national and coal mine safety production policy is: (safety first), (prevention first).
2, replacement of roadway support, before dismantling the original support, should first (reinforcement) near the support, after dismantling the original support, must be removed in time (top help live gangue) and set up permanent support, temporary support measures should be taken when necessary.
3, when repairing in inclined roadway, there must be safety measures to prevent waste rock, materials (tumble) and support (tilt).
4. Before anchoring, you must first (knock on the top) and get rid of the live gangue. You can only work if it is safe.
5. When spraying concrete and mortar with artificial feeding jet machine, (wet material) must be used, and the dust collector should be used to remove the dust from the inlet and the residual air outlet. Operators must wear (labor protection) articles.
6, tunneling faces it is forbidden to empty top homework. Before blasting, the support near the heading face (10m) must be reinforced.
7, digging or deep inclined shaft, downhill, must be in the inclined shaft, downhill (catchy) set to prevent sports car device, in the tunneling faces (above) set strong sports car protection device.
8. The harrow loader must be equipped with enclosed metal (rope fence) and (guardrail) to prevent harrow out of the trough.
9, electric detonator must be loaded by cartridge (at the top), it is forbidden to use (electric detonator) instead of bamboo, stick out.
10, (coal mine safety regulations), (operation regulations) and "operation regulations" have equal importance and equal relationship in coal mine production.
1 1. Safety personnel must have (necessary safety professional knowledge) and (mine safety work experience).
12, safety personnel must strictly implement the three rules, and have the right to order (rectify) the production sites and workplaces that do not have safe production conditions and endanger the life safety of employees, and solve them within a time limit. In case of emergency, they have the right (to stop production and evacuate people).
13, "one shot and three inspections" means to check the gas in the airflow (before charging), (before blasting) and after blasting respectively.
14, within the scope of the joint (20m) between all safety exits and roadway in the coal mining face, it is necessary to (strengthen support).
15, each production mine must have at least (2) walkable passages (emergency exits) to the ground.
16, in the same coal mining face, different (type) and different (performance) coal pillars shall not be used. When different types of coal pillars must be used in coal mining faces with complex geological conditions, safety measures must be formulated.
17, the coal mining face must be supported in time according to the provisions of the operation procedures, and it is forbidden to empty the roof. All supports must be installed firmly, and measures should be taken to prevent (inverted column).
18, when the inclined lane is used as a pedestrian lane during construction, it is necessary to set up an escape adit every (40m) and set up a red light.
19, comprehensive mechanized working face blasting, there must be safety measures to protect (hydraulic support) and other (equipment).
20, underground blasting operations, must use the coal mine license (explosives) and coal mine license (electric detonator).
2 1. When using the permissible (millisecond delay) electric detonator in coal mine, the delay time of the last paragraph shall not exceed (130ms).
22, blasting site (20) meters away, when harvesters, uncleared gangue or other objects block the roadway section (more than 1/3), it is forbidden to charge and shoot.
23. When blasting underground, the blaster must give an alarm (blasting) and wait at least (5 seconds) before shooting.
24, in general, the hole depth is less than 0.6m (charge), not (shooting).
25. When the hole depth is 0.6 ~ 1.0m, the pipa length should not be the length of the hole (1/2); When the depth of the blast hole exceeds 1m, the length of lute shall not be less than (0.5m).
26. Smooth blasting, smooth blasting hole around the application of stemming, stemming length not less than (0.3m).
27、
28, in the gas or coal dust explosion danger of mining face, (millisecond blasting) should be adopted. In the coal mining face, the charge can be grouped, but the assembled charge must be detonated at one time.
29. After the shooting, the gun smoke in the working face is blown away, and the blaster, gas inspector and team leader must first inspect the shooting site to check the ventilation, gas, coal dust, roof, support, misfire and residual explosion, and so on and so forth.
30. The blaster must (finally) leave the blasting site and detonate in a (safe) place.
3 1, blasting bus and cables, wires and signal lines should be hung in the roadway (on both sides) respectively. If it must be hung on the same side, the blasting bus must be hung under the cable, and the distance should be kept above (0.3m).
32, roadway drivage, blasting bus should be (with hanging). Do not use (fixed) blasting bus. Under special circumstances, after taking safety measures, it is not subject to this restriction.
33, blasting bus and connecting wire, electric detonator crural line and connecting wire, crural line and the joint of crural line must be twisted (hung) with each other, and shall not be in contact with electric conductors such as rails, metal pipes, metal nets, steel ropes and scraper conveyors.
34, in the coal seam with coal dust explosion danger, before and after the blasting of tunneling faces, in the roadway near (20m), dust must be sprinkled.
35, after charging, must put the electric detonator crural line (suspended), it is forbidden to electric detonator crural line, blasting bus and transportation equipment, electrical equipment and mining machinery and other electrical conductors (contact).
36. After the electric detonator is inserted into the cartridge, the cartridge must be intertwined with (crural line), and the crural line of the electric detonator is twisted into (short circuit).
37. When explosive materials are transported directly to the work place from the explosive material warehouse by manpower, (electric detonator) must be transported by the blaster himself, and (explosive) should be transported by the blaster or by other personnel under the supervision of the blaster.
38, the use of local ventilator ventilation tunneling faces, not (stop the wind); When the wind stops due to maintenance, power failure and other reasons, it must be (evacuated, cut off the power supply).
39. Rubber cables of all kinds of mobile mining machinery in coal mining face must be strictly protected to avoid (water jet), (impact), extrusion and blasting collapse. Each shift must be inspected, and if any damage is found, it should be handled in time.
40, coal mining face mobile machine, after each shift and the driver left the machine, must immediately (cut off power supply), and open the clutch.
Second, multiple-choice questions (40 questions, 3 choices 1)
1, and the gas explosion concentration is a.
a、5— 16% B、5—20% C、3— 18%
2, coal mine underground kerosene, gasoline and other abnormal smell, C may occur.
A, roof caving b, permeable c, coal spontaneous combustion
3, coal mining face temperature exceeds C℃, must stop working.
A, 26 B, 28 C, 30
4. The volume percentage of oxygen in the intake air of the mining face shall not be less than B. ..
a、20.96% B 20% C 18%
5. Press-in local ventilator and starting device must be installed in the air inlet roadway, and the distance from the air return port of driving roadway shall not be less than C. ..
A 2m B 5 m C 10 m
6. More than 90% of mine fire victims died of poisoning.
Carbon dioxide, carbon dioxide, methane
7. The Technical Specification for Bolt Support in Coal Roadways of Xukuang Group stipulates the allowable deviation of bolt angle.
A: 5; b: 10； C: 15
8. The Technical Specification for Bolt Support in Coal Roadways of Xukuang Group stipulates the allowable deviation a of bolt spacing and row spacing.
a:50mm； b: 100mm； C:150mm
9. What gas in the coal mine is called gas B?
A: carbon dioxide; B: biogas; C: carbon monoxide
10, when the gas concentration in the air flow of the return air lane in the heading face reaches B, it is necessary to stop working and evacuate personnel.
A:1%; b: 1.5%； C: 2%
1 1, and the air supply per person per minute in the heading face is not less than c.
a:5 m3/min； b:4.5m 3/min； C: 4 cubic meters per minute.
12, in order to improve the blasting effect and ensure the blasting safety, the hole must be filled with C after charging.
A: Small stone; B: small pieces of wood; C: stem
13, blasting work must be completed by B personnel with certain mining experience.
A: As a squad leader; B: specially trained; C: Know some blasting theory.
14, blasting chart should include c, hole layout parameters and charging parameters, main blasting conditions and economic and technical indicators, etc.
Answer: Local roadway layout; B: structural diagram of hole charge; C: hole layout
15. What is the allowable deviation between prestressed anchor cables specified in the technical specification for bolt support in coal roadway of Xukuang Group? C.
a:50mm； b: 100mm； c: 150mm；
16, forward blasting is where explosives are put.
A: The drug introduction is at the top; B: the drug introduction is located in the middle; C: The drug introduction is at the bottom.
17, the deviation value before and after horizontal roadway support is within B.
A:1; b:0.5； C: 1.5
18, in the mining face and other roadway, when the gas concentration accumulated in the space with a volume greater than a reaches 2.0%, it is necessary to stop the work within 20 meters nearby, evacuate the personnel, cut off the power supply, and carry out processing.
Answer: 0.5m3; b: 1.5m 3； C: 2 cubic meters
19, local ventilator installation should be stable, the height from the ground is greater than B.
Answer: 0.5m；; b:0.3m； C: 0.6 meters
20, tunneling faces before and after the local ventilator determination of methane and carbon dioxide in a location.
Answer:10m; b: 15m； C: 20 meters.
2 1, local ventilator must be installed in the air inlet roadway, and the distance from the air return port of the driving roadway shall not be less than B.
a: 15m； B: 10 meter; C: Eight million.
22, high gas mine mining face gas concentration check at least b times per shift.
A: 2; b:3； C: 4
23. When two blasting faces B are separated, stop one excavation and make preparations for adjusting the ventilation system.
a: 15m； b:20m； C: 25 million
24, deep hole blasting, hole lute length b ..
a:< 0.3m； b:> 1m； C: 1/2 hole depth.
25, the coal mining face must maintain at least a smooth exit, leading to the air inlet lane and return air lane respectively.
A: 2; b:3； C: 4
The height of two exits in fully mechanized mining face within 26.20M shall not be lower than Bm.
A:1.5; b； 1.8; C: 2.0
27, working face column diameter of 100mm single hydraulic prop, its initial supporting force shall not be less than BKN.
A: 80; b:90； C: 100
28, working face at the bottom of the single prop drilling quantity shall not exceed c mm. ..
A: 200bb:150bc: 100.
29, coal mining face two export advance support distance shall not be less than b meters. ..
A: 10 b: 20 c: 40
30, fully mechanized mining face Angle is greater than 1 degree, support must take anti-fall, anti-skid measures.
A: 15 b: 20 c: 25
3 1, the stubble back distance of the coal mining face shall not be less than one meter.
A: 15 b: 20 c: 10
32, coal mining face two export 20m, there must be a sidewalk above class B..
A.0.5m B.0.7m C. 1m
33. The distance from the beam end of the hinged top beam to the coal wall (i.e. the end face distance) is ≤ C mm ..
100
34. When the gas concentration in the airflow near the motor or switch position B reaches 65438 0.5%, the operation must be stopped, the personnel evacuated and the power supply cut off.
A. 15m B.20m C.25m
35, "coal mine safety regulations" regulation of coal mining face should be b ventilation.
A, series b, independent c, diffusion
36, coal electric drill comprehensive protection device should be tested once every B. ..
A. Every day B. Every class C. Every week
37. Blasting is strictly prohibited when the gas concentration in the airflow at B near the blasting site reaches 65438 0.0%.
A. 15m B.20m C.30m
38, working face basic pillar to be in a straight line, the deviation shall not exceed b mm. ..
A: 50 B: 100 C: 150
39, roadway slope is greater than b, it is forbidden to human cart.
A.5‰ B.7‰ C. 10‰
40, in general, the hole depth is less than b, shall not be charged blasting.
a、0.3mb、0.6mc、 1.0m
Three. True or false (40 questions)
1, you can command in violation of regulations when dealing with major emergencies. ( × )
2, the roof accident refers to the coal mining face roof caving accident. ( × )
3. The initial supporting force of the hydraulic support has no effect on the separation and subsidence of the roof of the working face. (×)
4, in order to prevent the gun smoke, at least after shooting to blow away the gun smoke rear can enter the working face. ( √ )
5. When the umbrella eaves of the coal mining face exceed the prescribed limit, charging and blasting are not allowed. (√)
6. The blaster must finally leave the shooting site. (√)
7. The working face of no-load pillar as invalid pillar. (√)
8, underground air oxygen content is not less than 20%. (√)
9. The damper is a ventilation facility that does not allow airflow to pass through. (√)
10, when the hole depth is less than 0.5m, charging blasting is not allowed. (×)
1 1, the head and tail of scraper conveyor must be firmly anchored. (√)
12, there is absolutely no need to ventilate the mine with small gas emission. ( × )
13, the occurrence of pneumoconiosis is entirely caused by personal bad hygiene habits. ( × )
14, series ventilation is the preferred ventilation mode in low gas mines. ( × )
15, in order to improve the fire extinguishing speed, water should be aimed at the center of the fire source. ( × )
16, filter self-rescuer is mainly used to filter carbon monoxide gas in explosion or fire accident. ( √ )
17, when loading mud, the explosives in the hole must be tamped with a gun stick. ( × )
18, the initial supporting force of single pillar refers to the active supporting force of the roof when the pillar is just erected. (√ )
19, when the mining height of fully mechanized working face is ≥3m or the spalling is serious, the support must have a fender (√).
20, mining with gas emission or coal and gas (carbon dioxide) outburst coal seam, it is strictly prohibited to use series ventilation between any two working faces. ( √ )
2 1. For the working face that is not working on duty, check the gas and carbon dioxide at least 1 time per shift. ( √ )
22, hole sealing mud application of water cannon mud, water cannon mud outside the rest of the hole, the application of pulverized coal hole sealing. (×)
23. Mine dust is not necessarily explosive. (√)
24, coal mining face can be divided into several times to implement a charge blasting. ( × )
25, coal mining face as long as there is a pillar to meet the requirements of working face support, don't need a spare pillar. ( × )
26, mining face or other locations such as red, sweat, cold air, fog, you can judge that there are signs of water inrush. ( √ )
27, in a working face can use two blasters shooting at the same time. ( × )
28, coal mining face temperature shall not exceed 26℃. (√)
29, in the case of complete roof, shooting shed can't handle, continue shooting. (×)
30, in the small dip angle coal mining face, pillar don't need to take measures to prevent falling. ( × )
3 1, underground fires are all caused by spontaneous combustion of coal seams. (×)
32, drilling blasting, tunneling faces don't drill holes. (×)
33. The mixture of sand and clay is most suitable for stemming. (√)
34. When the cart passes through corners, forks, down ramps, air doors and other places, shout loudly, and be careful not to put your hand out of the car. The cart should look forward to prevent people from touching it. (√)
35, "coal mine safety regulations" regulation, the gap between rail joints shall not be greater than 5 mm .. (tick).
36. The peripheral eye arrangement of smooth blasting is that the softer the surrounding rock is, the greater the distance between peripheral eyes is. (×)
37, operating procedures are part of the operating procedures. (×)
38, underground maximum allowable concentration of carbon monoxide can exceed 0.0024%. (×)
39, roadway drivage when dealing with large stones, can put paste gun.
40, the shed of inclined roadway must keep enough mountain angle. (√)
Four, short answer questions (16)
1, what are the causes of local roof caving accidents in coal mining face?
Answer: (1) The roof caving in goaf is not good, and the hanging roof area is too large; (2) The roof has faults, cracks, bedding and other geological structures; (3) The sequence of prop-pulling operation is unreasonable; (4) The supporting quality of working face is not good; (5) Failing to take effective measures when encountering unforeseen geological structures; (6) The shed collapsed due to untimely support of coal wall area or shooting; (7) The control area of the exit roof of the working face is large and the pressure is concentrated; (8) When prop-pulling caving is carried out in a large working face with metal mesh, large rocks on the net roll down to press the pillars.
What should we do to deal with the accident?
A: If the cause of the accident is not found out, the person responsible for the accident will not be spared, the rectification measures will not be implemented, and the lessons will not be learned.
3. What regulations do rickshaws need to abide by?
Answer: 1. One person is only allowed to push one car. When the track gradient is less than or equal to 5‰, the distance between trolleys in the same direction shall not be less than10m, when the gradient is greater than 5‰, it shall not be less than 30m, and when the gradient is greater than 7‰, manual trolleys are prohibited. 2, cart people must be equipped with miner's lamp, in the road with insufficient lighting, miner's lamp should be hung in the front of the car direction. 3, cart must always pay attention to the front, found that someone in front or close to the switch, bend, roadway mouth, damper, chamber exit, cart people must give an alarm in time. 4. It is forbidden to fly.
4. What are the safety technical measures to prevent coal wall spalling in coal mining face?
Answer: (1) Coal wall mining in the working face should be straight and tidy, and coal pillars should be laid in time to reduce the pressure of the roof on the coal wall; (2) When the mining height is high and the coal quality is soft, backup should be made in addition to laying columns; (3) reasonable shooting, with picks to help gun when necessary, (4) timely support; (5) There shall be no umbrella eaves on the coal wall; (6) Coal wall solidification technology is adopted.
5. What is series ventilation? What are the hazards?
Answer: It refers to the ventilation mode in which the return air from the mining face enters other mining faces.
(1) The air quality of the mining face in series cannot be guaranteed; (2) Strong wind resistance. Affect the air supply of the working face; (3) In case of general accident prevention, it is easy to expand the scope of disasters; (4) The air volume is not easy to adjust.
6. What is local gas accumulation? Where is gas accumulation easy to occur in coal mining face?
Answer: In the top space of roadway, blind roadway, single-headed roadway and other places where airflow can't reach, the gas concentration is above 2%, and the volume is above 0.5M3, including the upper corner of working face, the vicinity of goaf, the cave of roof caving and the vicinity of shearer.
7. What are the main comprehensive dust prevention measures taken in the mine?
Answer: (1) Establish a perfect dustproof sprinkler pipeline system; (2) injecting water into the coal seam; (3) water spraying (4) air flow purification; (5) water stemming for shooting; (6) lane washing gang; (7) Wet drilling; (8) Irrigation in goaf; (9) Flameproof water shed; (10) Paint the roadway; (1 1) Personal protection.
8. What are the basic principles of safety management?
Answer: 1, the principle of safety first and prevention first; 2. The principle that production must be safe; 3. The principle of total staff management based on group management; 4, the principle of security veto.
9. Try to describe the role of coal mine safety inspectors in coal mine safety production.
A: 1) Early detection and correction of unsafe behaviors. 2) Find unsafe conditions in time, improve working conditions, and improve the degree of intrinsic safety. 3) Find and remedy management defects in time. 4) Find potential dangers and formulate preventive measures. 5) Discover and popularize the advanced experience of safe production in time. 6) Publicize and implement the guidelines, policies, laws and regulations on production safety in combination with the actual situation.
10, what are the precautions for extinguishing fire with water?
Answer: 1, there should be enough water; 2. Spray from the periphery of the fire source to the center of the fire source; 3, should maintain normal ventilation; 4. When extinguishing the fire of electrical equipment with water, cut off the power supply first; 5, can't put out the oil fire with water; 6, firefighters should stand on the windward side; 7, in the process of fire extinguishing should hold people check the gas and carbon monoxide content at any time.
1 1. What is circulating wind? What are the disadvantages?
Answer: part or all of the return air of the local ventilator returns to the inlet air of the same local ventilator, which is called circulating air.
The return air contains a certain concentration of mine dust and gas. When it circulates into the working face, it can not dilute the concentration of mine dust and gas in the working face, but gradually increases, which makes the concentration of mine dust and gas exceed the standard, which is very dangerous. Therefore, it is necessary to prevent the occurrence of circulating wind.
12. What rights do coal mine safety inspectors have? What obligations should be fulfilled?
Answer: 1) The right of on-site inspection. 2) the right to ask. 3) Get information. 4) the right of disposal. 5) The right of appeal.
1) When carrying out safety inspection activities, show certificates to the inspected to prove their identity.
2) Abide by the provisions of relevant laws and regulations, enforce the law impartially, and do not follow private affairs.
3) Don't disclose the confidential information of the case and enterprise to others.
4) Keep the whistleblower and whistleblower confidential. The names of informants, informants and interviewees who reflect the situation that is not suitable for publicity shall be kept strictly confidential.
5) Do not use authority for personal gain, be fair and honest, and be honest and upright.
13. Under what circumstances are charging and shooting not allowed?
Answer: 1, the empty roof distance of the heading face does not meet the requirements of operation accumulation, and there is no pre-exploration support, when the roof is empty.
2. The roadway within the range of 10m from the working face has collapsed and collapsed supports, which have not been repaired or reinforced.
3, before charging, before shooting, did not check the gas, near the shooting location 10m within the scope of the gas concentration in the wind reaches 1%.
4, within 20m near the shooting site, there are harvesters, uncleaned coal, gangue or other objects blocking the roadway section up to 1/3 or more.
5. The shape of the cave is abnormal, the temperature drops suddenly, there is water gushing out, there is obvious gas gushing out, and there is loose coal and rock.
6. The hole depth and the minimum resistance line do not conform to the compliance time sequence.
7. When the online person did not return to a safe place, there was no warning person, and the shooting bus length was not enough.
8, the old empty, fault roof caving, tunneling without safety measures.
14, what is "three-person chain processing"?
Answer: Before blasting, the blaster will give the warning sign to the team leader, who will send someone to guard and check the roof and support, and give the blasting command card he carries to the gas inspector. After the gas inspector checks that the gas and coal dust are qualified, he will hand over the blasting card he carries with him to the blaster. The blaster whistled first and then fired. After the shooting, the three cards were returned to their original owners.
15, How does "Coal Mine Safety Regulations" stipulate the gas concentration of return air flow in heading face?
Answer: When the gas concentration in the return air roadway in the mining area and mining face exceeds 65,438 0.0% or the carbon dioxide concentration exceeds 65,438 0.5%, it is necessary to stop working, evacuate personnel and take measures to deal with it.
16, what are the requirements for local ventilator?
Answer: "Coal Mine Safety Regulations" stipulates that mine full wind pressure ventilation or local ventilator ventilation should be adopted in driving roadway, and diffusion ventilation is not allowed. The local ventilator and electrical equipment in the heading face must have a wind power locking device. When the local ventilator stops running, all power supplies in the air supply roadway of the local ventilator shall be cut off immediately. The local ventilator in the heading face of low gas mine can be powered by the power supply line equipped with selective leakage protection device, or it can be powered separately from the coal mining face.
The above is the information I collected! But I don't know if these problems will occur. I suggest you read more other materials.