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Occupational safety instructions for the expander operator (expansion line operator). Full document

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General safety requirements

1.1. Individuals who are at least 18 years old, who have undergone a medical examination, introductory briefing, initial on-the-job training, professional training at a training facility according to a developed program, who have undergone an internship of at least 12-15 shifts, and a knowledge test (admission) are allowed to perform independent maintenance of the equipment of the feed expansion line. ) in the qualified commission of the plant.

1.2. The employee must comply with the internal labor regulations of the enterprise and exclude the use of alcohol, drugs and toxic substances. Smoking is allowed only in designated areas. The employee must know and comply with safety requirements when using the elevator. When walking on stairs, you must hold on to the railings. Take precautions when moving around the area.

1.3. When servicing an expansion line, dangerous factors are:

• rotating parts;
• static electricity;
• steam line, high temperature of some equipment surfaces
• hydraulic equipment;
• lifting equipment;

Harmful factors - noise.

1.4. According to standard industry standards, the expander operator is required to wear special clothing: a cotton suit, a cotton helmet, combined mittens, a cotton cotton jacket (on duty), special footwear (boots or tarpaulin boots) and protective equipment - headphones.

1.5. To ensure fire and explosion safety, the expander operator monitors the operating mode of the equipment (temperature, pressure), performs timely lubrication of bearings, cleans the magnetic protection, monitors the tension of drive belts, and the operation of automation and locking equipment.

1.6. In cases of injury, an employee or an eyewitness must immediately report it to the authorities. shift or the shop manager, who is obliged to organize assistance. If necessary, the victim must be provided with medical assistance. If equipment malfunctions or technological process violations are detected, the employee reports this to the beginning. shifts, beginning workshops

1.7. The employee must be able to provide first aid in case of accidents: apply a tourniquet in case of bleeding, perform artificial respiration.

1.8. When performing work servicing the expansion line, the employee must observe the rules of personal hygiene.

2. Safety requirements before starting work

2.1. Carefully inspect the workplace and check:

• whether there are foreign objects in the workplace;
• are the aisles free;
• the availability of the necessary equipment, tools, fixtures.

2.2. Check the serviceability of the equipment, temperature of bearings, electric motors, load:

• availability and serviceability of drive guards;
• by external inspection, check the serviceability of electrical equipment and drives, alarm systems;
• serviceability of electric lighting, grounding means;
• operation of suction networks.

2.3. When working in shifts, it is necessary to familiarize yourself with the results of the work of the previous shift, find out all the existing technical problems in the operation of the equipment, and their causes.

2.4. Comply with industrial hygiene requirements at the workplace.

3. Safety requirements when performing work

3.1. Before starting up the expansion line equipment, you should make sure that there are no foreign objects in the machines, as well as that all mechanisms and instruments are in good working order and that drive guards are in place.

The maximum load on electric motors on the ammeter scale should not be higher than a) expander - 290A, b) press - 230A.

3.2. When servicing the A1-BIS-100 separator:

a) clean the sieves using a hand brush, and do not stand on the fence or frame;

b) clean under the separator with a brush with a long handle;

c) if an imbalance occurs in the eccentric drive of the shaft and the sieve body and significant vibration occurs, the machine should be stopped and balanced;

d) during operation of the separator, you should not stand on the sieve body or clean the settling chambers with your hands;

3.3. Drive shafts, gearboxes, couplings driving sluice gates must be securely guarded.

3.4. Testing the rotation of the sluice gate impeller must be done by hand using the end of the shaft; rotation of the impeller by the blades is prohibited.

3.5. If a foreign object gets into the sluice gate or is blocked by a product, the removal of the foreign object or the elimination of the blockage must be carried out after disconnecting the electric motor from the electric motor. network and completely stop the rotation of the impeller.

3.6. Stationary chain conveyors and augers must be enclosed in durable boxes with removable lids. Lids must be closed. Safety grilles must be installed under removable covers. Workers must remember that open hatches not only contribute to dust in the workshop, but also create the danger of accidentally getting a hand or foot into the working area of ​​a chain conveyor or auger, which can cause injury.

3.7. If the chain conveyor, auger is blocked or a foreign object gets into them, the object can be removed or the machine is cleared of the blockage only when the machine is completely stopped. The blockage of the elevator can be eliminated only after it has completely stopped using a special scraper.

The scraper must be free in the hand; it is prohibited to attach it to the hand.

3.8. To prevent fingers from getting caught in the rotating chopper rollers, a safety guard must be installed. Removing a foreign object that has accidentally fallen onto the rollers or eliminating the crusher blockage should only be done after stopping the chopper and disconnecting it from the network.

3.9. The press flywheel, motor pulley, drive belt, and feeder drives must be protected on all sides. The protruding ends of the shafts must be covered with blind cases.

3.10. When working on an expansion line, the risk of burns due to hot expander and high-temperature external surfaces of the equipment should be taken into account.

3.11. When the expander is blocked by the compressed mass, the superheated product is in the machine under excess pressure. When the bolts are unscrewed, the housing of the discharge part of the expander may suddenly open with the release of steam and material residues.

There should be no people in front of the expander and in the turning area of ​​the unloading part if the expander is open or steam is being released from it.

3.13. The steam line (supplying steam) must be reliably insulated along its entire length.

3.14. Work on hydraulic equipment must only be carried out by qualified personnel.

3.15. It is allowed to use only pipelines, hydraulic accumulators and hydraulic cylinders designed for operating pressure. Repair or maintenance work can only be carried out after the pressure in the hydraulic system has been relieved.

3.16. Control and regulation elements must be de-energized before any work is carried out on them. Fasteners must be tightened to the specified torque.

3.17. All pipelines and threaded connections must be checked once per shift for leaks and external damage. Damage and leaks must be repaired immediately.

3.18. The lifting mechanisms and slinging equipment used must be designed for the loads arising during the transportation of the installation.

3.19. The work of unauthorized persons with lifting mechanisms is prohibited.

3.20. Unacceptable methods of operation:

• work without protection devices;
• operation of equipment without regular monitoring;
• start-up of the press at full pressure in the hydraulic system;
• operation of the press without supplying the product, except for the final phase of releasing the press from the product;
• repeated switching on and off of a jammed press;
• press overload due to excessive product supply;
• prolonged stoppage in the filled state, which can lead to hardening of the product and blocking restart;
• stopping the equipment for a long time without prior cleaning.
• All troubleshooting, adjustment, adjustment, and lubrication work may only be carried out when the equipment is switched off. It is imperative to take measures to prevent unintentional switching on of the equipment (de-energize the switchgear, hang a sign “Do not switch on, people are working”).

4. Safety requirements in emergency situations

4.1. Accidents or accidents can result from:

• ingress of foreign objects into the equipment;
• the presence of electricity voltage on the equipment cases;
• slippage of drive belts;
• the appearance of extraneous sounds during the operation of the equipment;
• damage, sparking or ignition of wiring or electrical equipment;
• blockage of equipment with a product.

4.2. If emergency situations occur, the expansion line must be stopped immediately and notified to the shift supervisor or workshop manager.

4.3. In cases of fire, it is necessary to immediately stop the equipment, take measures to evacuate people, and notify the plant’s air defense department by phone. _______ and begin to extinguish the fire.

5. Safety requirements at the end of work

5.1. Remove dust, stains of grease, oil, molasses from the outer surface of the equipment, using a sweeping brush; for cleaning the floor, a brush with a long handle

5.2. Report any malfunctions noticed during work to the shift supervisor, shop supervisor, and shift supervisor.

5.3. At the end of the shift, the worker must put the overalls in the wardrobe, take a shower.

5.4. You should not remain in the workshop or on the territory of the plant after the end of your shift without the knowledge of management.

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