Instruction on labor protection for the minder of mortar mixers, concrete mixers

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OCCUPATIONAL SAFETY AND HEALTH
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Instruction on labor protection for the minder of mortar mixers, concrete mixers

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General provisions

1.1. Workers who have reached the age of 18 and have passed a preliminary medical examination, special training and have a certificate for the right to operate mortar and concrete mixers and at least the first qualification group in electrical safety, as well as who have undergone an introductory briefing on labor protection, are allowed to work on mortar and concrete mixers. fire safety and workplace training.

A mortar and concrete mixer operator working in a complex team must be instructed and trained in safe techniques for all types of work he performs.

1.2. The minder of mortar and concrete mixers is obliged to:

follow the rules of the internal labor schedule and the instructions of the master (foreman);
use the issued protective clothing, safety shoes and safety devices, and while on a construction site, use a safety helmet;
remember personal responsibility for compliance with labor protection rules and the safety of fellow workers;
perform only the work for which he was instructed and approved by the master (foreman);
do not comply with orders if they contradict the rules of labor protection;
prevent the presence of unauthorized persons at the workplace;
provide first medical aid to victims of industrial accidents, take measures to eliminate violations of labor safety rules.

1.3. Workplaces must be provided with tested inventory fences, protective and safety devices and devices (tables), manufactured according to standard designs and installed in accordance with the work production plan (WPP).

1.4. The operator of a mobile mortar and concrete mixer must keep his workplace in order throughout the working day.

1.5. It is forbidden to work in unlit or dark places.

1.6. The workplace must be protected from above by a canopy or decking and have a sound or light alarm.

1.7. The operator of a mortar and concrete mixer may be exposed to dangerous and harmful production factors: electric shock, rotating parts of mechanisms, falling objects, increased dust in the work area, increased noise levels in the workplace, and others.

1.8. The operator of the mortar and concrete mixer receives individual safety devices, the use of which is permitted only after undergoing special instructions:

respirator ShB-1, "Petal";
goggles "Monoblock-2";
dielectric and rubber gloves;
anti-noise headphones.

1.9. Bulk materials should be placed on leveled and compacted areas with a passage width of at least 1 m.

1.10. It is prohibited to store materials on the slopes of embankments, excavations at a distance of less than 1 m from the edge, as well as to pile them against fences, building walls, poles and other structures.

1.11. Bags of cement should be stacked in three or four ledges in a dressing, without filling the rows.

1.12. It is prohibited to remove bulk materials from stacks by digging and leaving a canopy.

1.13. Store quicklime in chests or closed warehouses.

1.14. The minder of mortar and concrete mixers must know:

arrangement of mechanisms and units installed at workplaces;
rules of technical operation of each type of serviced mechanisms or machines;
the simplest measures to eliminate equipment malfunctions and defects and safe ways to set up or repair them;
safe ways to perform auxiliary work - cleaning machines, cleaning the workplace, etc.;
safe working practices in bunkers.

1.15. The wooden handles of the tools and devices used must be smoothly processed, adjusted and securely fastened.

1.16. It is prohibited to use hand tools that have potholes, chipped working ends, burrs and sharp edges in places where the hand is clamped, or cracks and chips on the back of the head.

1.17. The tool should only be used for its intended purpose.

2. Safety requirements before starting work

2.1. Before starting work, the minder of the mortar, concrete mixer is obliged:

familiarize yourself with the records of the mechanic of the previous shift in the shift acceptance log;
inspect the workplace, remove unnecessary items and materials, clear the aisles;
check the serviceability of all components of the mechanism, inspect the inner surface of the drum to ensure that the blades are in good condition and that there are no foreign objects in the drum.

2.2. Before starting up the mixing plant, it is necessary to first check the presence of guards on its rotating parts, gears, and check the presence of grounding.

2.3. If a malfunction is detected, inform the foreman (foreman) and call the mechanic on duty.

2.4. Before loading the drum with fillers, perform a test run of the mechanism idle, and check:

correct direction of rotation;
unhindered overturning of the drum and unhindered return to its previous position;
reliability of the locking device;
tightness and reliability of bolted connections;
condition of all protective barriers;
whether there are any extraneous noises in the operation of the mechanism.

A test run of the mechanism should only be carried out using the control buttons on the mixing compartment panel.

2.5. The mortar and concrete mixer should be turned on after it is fully loaded with materials.

3. Safety requirements during work

3.1. During operation of the mortar and concrete mixer, the mechanic must ensure that loading is done when the drum is returned to its original position and installed on the stopper, and unloading is done when the stopper is immediately activated, so that the gearboxes, electric motors, bearings, rollers, rollers do not overheat, and the drum does not jam , hinges, rollers.

3.2. Cleaning the receptacles for the loading buckets of mixing machines is allowed only after the bucket is securely secured in the raised position. Workers are not allowed to stay under a raised and unsecured bucket.

3.3. Do not leave a running concrete mixer unattended.

3.4. If there is a malfunction in the mechanism, stop it immediately and do not start working until the fault is completely eliminated by the mechanic on duty.

3.5. Mortar units intended for operation in winter conditions must be insulated.

3.6. The minder of mortar and concrete mixers is prohibited from:

perform various types of repairs and maintenance of the mechanism on the go;
clean the hopper or drum on the go;
remove protective barriers;
leave the workplace until a complete stop and shutdown of mechanisms;
load the drum with materials with the mesh removed.

4. Safety requirements after finishing work

4.1. At the end of the work, the mortar and concrete mixer must be disconnected from the power supply and the starting switch must be locked.

4.2. To avoid accidental switching on, before cleaning, it is necessary to remove the break plug from the control circuit of the installation, and place a warning sign on the starter: “Do not switch on - people are working.”

4.3. The mortar and concrete mixer must be cleaned of hardened mortar or concrete. Drum cleaning should be performed under the direct supervision of a foreman or foreman.

4.4. When carrying out cleaning work inside the mixing drum, you must:

install portable lighting with proper wire insulation and a network voltage of no more than 12 V, and the light bulb must be protected by a metal mesh;
put on duty waterproof overalls, rubber boots, safety glasses and gloves.

4.5. Wipe and lubricate the rubbing parts of the mechanisms.

4.6. Clean up the work area, remove construction debris and foreign objects from walkways.

4.7. To clear from dust and pollution overalls and special footwear.

4.8. Report all problems during work to the master (foreman).

5. Safety requirements in emergency situations

5.1. If smoke is detected or a fire occurs, a fire must be immediately notified to the foreman, a fire alarm should be announced (by local radio or sound signals) and reported to the fire brigade using the nearest telephone.

At the same time, take measures to eliminate the fire using the available primary fire extinguishing means (fire extinguishers, water, sand, etc.) according to the source of the fire.

5.2. Report each accident, accident, fire and other dangers threatening an accident or accident to the foreman of the site, organize first aid to the victim and send him to a medical facility, maintain the workplace situation and the condition of the equipment as they were until the investigation at the time of the incident, and do not start work until they are eliminated.

5.3. First aid.

5.3.1. First aid for electric shock.

In case of electric shock, it is necessary to immediately release the victim from the action of electric current by disconnecting the electrical installation from the power source, and if it is impossible to disconnect it, pull it away from the conductive parts by clothing or using insulating material at hand.

If the victim has no breathing and pulse, it is necessary to give him artificial respiration and indirect (external) heart massage, paying attention to the pupils. Dilated pupils indicate a sharp deterioration in the blood circulation of the brain. In this condition, revival must begin immediately, and then call an ambulance.

5.3.2. First aid for injury.

To provide first aid in case of injury, it is necessary to open an individual package, apply a sterile dressing, which is placed in it, to the wound and tie it with a bandage.

If somehow the individual package was not found, then a clean handkerchief, a clean linen rag, etc. must be used for dressing. On a rag that is applied directly to the wound, it is advisable to drip a few drops of tincture of iodine to get a stain larger than the wound, and then apply the rag to the wound. It is especially important to apply the tincture of iodine in this way to contaminated wounds.

5.3.3. First aid for fractures, dislocations, shocks.

In case of fractures and dislocations of the limbs, it is necessary to strengthen the damaged limb with a splint, plywood plate, stick, cardboard or other similar object. The injured arm can also be hung with a bandage or handkerchief from the neck and bandaged to the torso.

In case of a skull fracture (unconscious state after a blow to the head, bleeding from the ears or from the mouth), it is necessary to apply a cold object to the head (a heating pad with ice, snow or cold water) or make a cold lotion.

If a fracture of the spine is suspected, it is necessary to put the victim on the board, without lifting him, turn the victim on his stomach face down, while observing that the body does not bend, in order to avoid damage to the spinal cord.

In case of a fracture of the ribs, a sign of which is pain during breathing, coughing, sneezing, movements, it is necessary to tightly bandage the chest or pull it off with a towel during exhalation.

5.3.4. First aid for bleeding.

In order to stop bleeding, you must:

5.3.4.1. Raise the injured limb up.

5.3.4.2. Close the wound with a dressing (from a bag), folded into a ball, press it from above, without touching the wound itself, hold for 4-5 minutes. If the bleeding stops without removing the applied material, put another pad from another bag or a piece of cotton on top of it and bandage the wounded area (with some pressure).

5.3.4.3. In case of severe bleeding that cannot be stopped with a bandage, compression of the blood vessels that feed the wounded area is applied by bending the limb at the joints, as well as with fingers, a tourniquet or a clamp. In case of heavy bleeding, you should immediately call a doctor.

5.4. In all cases, follow the instructions of the head of work to eliminate the consequences of an emergency.

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