According to the mine leadership arrangement, our unit replaced the underground gangue belt conveyor head, removed the original belt conveyor, and replaced a DTL120/140/2Χ500 belt conveyor. To ensure construction safety, this measure was specially prepared. .

Third, the construction sequence and plan:

1. The belt conveyor must be powered off and bonfire before dismantling.

2. Make the belt machine clamping device to clamp the upper and lower belts of the belt conveyor (responsible by the machine transportation department), loosen the tension winch to loosen the belt, and try to pull out the flexible pin. Under special circumstances, the belt should not be cut. When cutting the belt Must be near the belt buckle.

3. Remove the unloading device and load it out.

4. Remove the special intermediate frame, offset roller frame, and grooved roller for loading and transportation.

5. Remove the transmission device and some accessories for loading and transportation.

6. Place the lower belt on the flatbed and bundle it securely.

7. Remove the redirection device, tensioning device and other related accessories for loading and transportation.

8. Load all kinds of loading equipment and add anti-collision measures.

9. Installation: automatic hydraulic tensioning device, tensioning device, redirecting device, transmission device and unloading device.

10. All installation and removal of items shall be handled by the Aircraft Transportation Division.

11. Use the belt head JM-14T to slowly wrap the 5T pulley for lifting.

4. Special safety technical measures for lifting equipment:

When using the chain hoist to lift the large part of the belt conveyor, the personnel should stand outside the swing range. The specific operation precautions are as follows and follow the instructions:

(1) Rooting, fixing, and connecting

1. Before lifting the equipment components, use the top I-beam beam or the Φ22×2500 mm rebar anchor rod as the special lifting anchor. It is strictly forbidden to use the anchor cable or anchor rod for the lifting point. Before lifting, check the top plate, confirm the safety before lifting, and have a special person to command when lifting.

2. Before lifting, the wire rope, anchor chain, connecting ring and buckle ring for lifting should be inspected carefully.

3. It is strictly forbidden to use anchor cables or anchors for lifting.

4. Fix the lifting object and the lifting device firmly before lifting, and it is strictly forbidden to appear relative sliding.

5, when the lifting, lifting the center of gravity of the weight on the hook in the vertical line, the hook assemblies can not be inverted, inclined prevent weight.

6. When using the anchor chain and pulley as the connection, guiding device and lifting, the connecting ring must be used and the bolts should be connected for connection. It is strictly forbidden to connect the bolts directly. It is strictly forbidden to use the split ring connection.

(2) Tools, facilities and materials

1. Before use, the tool must be thoroughly inspected to ensure that the tool is in good condition before use.

2. Make rope rope heads for lifting, each rope head must be no less than two rope cards; when inserting the rope head, the length of the plugging is not less than 3.5 lay lengths (commonly known as 21 cones), and the intersecting stocks should Fasten, no slack.

3. If you need to climb above 1.5m, you must use the “Letter of the Person” or climb the platform. The climbing tool is firmly welded, and the construction personnel wear the safety belt to achieve high hanging and low use.

4. Before using the chain hoist, check whether the manual hoist transmission parts, the size wheel, the backstop device, and the upper and lower hooks are all intact; check the chain lubrication, the chain for damage cracks, the chain for twisting and knotting; and the empty operation is normal. When the weight of the chain hoist is deflected during the lifting process, the lifting should be stopped immediately, and measures such as re-bundling or adding lifting points after falling are taken.

5. Check all the tools before using the lifting device, and confirm that they are qualified before use.

6. Before using the jack, it is necessary to check whether the parts are normal and flexible, and whether there is any damage; whether the hydraulic oil is short of oil or oil leakage. When using, the center of gravity should be moderately selected. The focus of the jack should be properly selected. The bottom surface should be leveled. At the same time, the soft and hard conditions of the ground should be considered. Whether the tough wood should be padded should be placed smoothly to avoid the weight from sinking or tilting.

7. Manual hoist and jack for lifting, not allowed to use the rated weight.

(3) Azimuth, space, and retreat

1. When lifting, the personnel should be properly positioned. The operator should not be located below the lifting point, in the direction where the lifting object may be dumped or at the slope below the lifting object.

2. When placing objects, they must be gently placed and not allowed to fall freely. When people carry objects, many people cooperate, the numbers are the same, and they are handled with care. If there is a long, heavy and long material to be manually transported, many people will be ready to meet at the landing site before the unloading to ensure safe construction.

3. When lifting the equipment, if it is necessary to perform the work of aligning and rotating the equipment, it is necessary to use a rope pull or a long handle tool to move.

4. During the lifting process of the equipment, a special person should observe the safety situation near the roof and the lifting device. When lifting does not move, you must stop lifting, find out the cause of troubleshooting, and prohibit forced lifting.

5. It is strictly forbidden to pass the hoisting personnel when lifting, and it is strictly forbidden for anyone to extend any part of the body below the lifting object.

6. When lifting, the clearance between the lifting objects and the lanes, fixtures and facilities should be greater than 500mm to prevent the lifting objects from falling and hitting other objects.

7. When lifting, no other unrelated personnel should stay or work within 3m except the construction personnel. Within 10m behind the lifting personnel, the evacuation route is unblocked and there is no sundries to prevent the lifting objects from rolling down and hurting people. It is strictly forbidden to pass during hauling and lifting.

8. When lifting, pay close attention to the stress situation. First lift the heavy object away from the ground 200mm, carefully check the lifting points, tools, and confirm the safety before continuing to lift. Do not pull the slanting crane; do not stand on the top of the heavy object. It is strictly forbidden to balance the heavy objects with human resources; the heavy objects should not be left empty; the non-manual driving method should not be used; the rated lifting weight should not be exceeded; the specified lifting should not be exceeded. height.

9. When lifting heavy objects, the lifting personnel are commanded by special personnel to strengthen the safety supervision of the entire operation process.

10. After the equipment is hoisted in place, it should be placed in a stable position. Objects with high center of gravity should be protected against falling measures before the lifting tool can be removed.

(4) Other safety technical measures

1. Before the construction, it is necessary to find the net roof and the blasted pulp and dangerous rock of the gang, and each class will send a special person to check the top safety.

2. The gas portable instrument is suspended at the construction site. When the gas concentration in the working place reaches 0.5%, the work must be stopped, the personnel should be evacuated, and measures should be taken for treatment.

3. It is strictly forbidden to explode mechanical and electrical equipment, lose safety, prohibit live maintenance, and relocate electrical equipment; before repairing and relocating electrical equipment, the upper power supply must be cut off, the switch should be stopped and locked, and “some people work, no electricity transmission” There is a blackout card and there is a special person to look after.

4. Electromechanical personnel are strictly prohibited from operating in violation of regulations, and non-electromechanical personnel are strictly forbidden to open various electrical switches.

5, the underground cable must be hung neatly, the "five small" equipment on the board, the switch on the shelf.

6, underground power supply should be "three no", "four have", "two", "three full", "three insistence."

7. During the construction period, the construction unit and the supervision department must have the deputy team leader or above to follow the class.

8. All special types of work must be certified.

AAC Autoclave

Steam Autoclave,Aac Autoclave,Industrial Autoclave,Concrete Autoclave

Changzhou machinery and equipment Imp.& Exp.Co.,Ltd , https://www.czautoclave.com