Safety operation procedures of tower crane
1, tower crane operation should have enough workplace, boom boom boom ups and downs and no obstacles within the radius of gyration, night operation should have enough lighting equipment.
2, tower crane luffing indicator, torque limiter and various travel limit switches and other safety protection devices must be complete, sensitive and reliable, and shall not be arbitrarily adjusted and disassembled. It is forbidden to stop the machine with a limit device instead of an operating mechanism.
3. Before operation, you must fully understand the surrounding environment, roads, overhead wires, buildings and the weight and distribution of components.
4, tower crane operators and commanders must cooperate closely, commanders must be familiar with the mechanical properties of the command, the operator should strictly implement the commander's signal, such as the signal is unclear or wrong, the operator can refuse to perform. If the accident is caused by a command error, the commander should be responsible.
5. When the operation room is far away from the ground and the command is difficult, two commanders can be set up on the ground and high, or effective communication methods can be used for command.
6. In case of severe weather such as gale or rainstorm, heavy snow and fog, the operation should be suspended.
7. When lifting, no one is allowed to stay or pass under heavy objects. It is forbidden to use tower crane to lift personnel.
8, it is forbidden to use tower crane for oblique hanging, cable-stayed and lifting underground buried or condensed on the ground of heavy objects, concrete components or templates on the construction site, must be all loose rear can lifting, crane must be in accordance with the provisions of the lifting performance operation, shall not be overloaded and lifting objects of unknown weight.
9. When lifting heavy objects, the binding shall be smooth and firm, and scattered objects shall not be stacked or hung on the heavy objects. Sporadic objects or articles must be tied firmly with hanging cages or wire ropes before lifting. The included angle between the binding wire rope and the object shall not be less than 30 degrees.
10. When lifting with full load or close to full load, first lift the heavy object 20-50 cm off the ground, stop the machine and check: the stability of the crane, the reliability of the brake, the stability of the heavy object and the firmness of binding.
1 1, the vertical speed of the crane should be uniform, and it is forbidden to suddenly brake. Turn left and right smoothly. When the rotation does not stop, the reverse action is not allowed.
12, the steel wire rope used by the crane shall be subject to the technical documents of the manufacturer, and it can only be used after passing the inspection without the certificate. The wire ropes on the drum shall be firmly connected and neatly arranged, and shall not be kinked or deformed, and all wire ropes shall not have joints.
13. After the work is completed, turn the boom to the downwind direction and open the hook to a position 2-3m away from the top of the boom.
Technical disclosure on operation safety of tower crane
1, tower crane drivers and signal personnel must receive special training and hold relevant certificates.
2, the driver should be familiar with the mechanical properties of tower crane and instructions, comply with the requirements in the instructions.
3. The driver can only start the operation after getting the clear signal from the commander. Ring the bell before you act. If the signal is not clear, don't operate at will.
4, tower crane should have two drivers per shift, one driver operation, another driver ground monitoring, in case of accidents.
5, when hang up the wire rope rigging, hook wire rope taut, the operator should immediately away from the lifting of heavy objects, more can't stand under the boom, in case of heavy objects falling, arm collapse cuts.
6. When lifting at or near full load, it is forbidden to drop the arm or move twice at the same time.
7, lifting heavy objects are strictly forbidden to fall freely, heavy objects falling application hand brake or foot brake control slow decline.
8. When the boom changes the elevation angle, it must run with no load, and other actions can't be done at the same time when it changes the amplitude.
9, it is forbidden to do fast rotation, to prevent the danger of too fast rotation caused by the difficulty of objects in place and the excessive centrifugal force of heavy objects.
10, listen to the command signal during operation. When the signal is unknown or may cause an accident, the operation should be suspended.
1 1. When lifting, no one is allowed to stay or walk under the boom, and the boom and objects must keep a safe distance from the overhead wires.
12. Pull the rope for lifting objects at a uniform speed. It is forbidden to brake suddenly and change direction. The translation should be more than 0.5M higher than the obstacle, and the falling should be handled gently at a low speed to prevent dumping.
13, it is strictly prohibited to obliquely hoist and hoist objects buried underground or condensed on the ground and equipment.
14. When the crane stops working, put down the lifting object, step on the brake, put the joystick in neutral and lock the switch.
Operating procedure of steel bar bending machine
Firstly, check whether the mechanical performance is good and whether the workbench and the bender workbench are horizontal; And prepare all kinds of mandrel tool stops.
Second, according to the diameter of the processed steel bar and the requirements of the bending machine, install the mandrel, forming shaft, iron retaining shaft or variable retaining frame. The diameter of the mandrel should be 2.5 times the diameter of the steel bar. Three, check the mandrel, stop, turntable should be no damage and crack, shield fastening is reliable, after the idle machine operation confirmed normal rear can operate.
4. When working, insert one end of the steel bar to be bent into the gap provided by the turntable, and fix the other end close to the fuselage and press it by hand to check the fixation of the fuselage.
It can only be started if it is installed on the side blocking the steel bar.
Five, it is forbidden to change the spindle, change the angle and speed regulation during operation, and it is forbidden to refuel or disassemble.
Six, bending steel bar, it is forbidden to process more than the mechanical rules of steel bar diameter, quantity and mechanical speed.
Seven, bending high hardness or low alloy steel bar, should according to the provisions of the mechanical nameplate in the maximum limit diameter, and replace the corresponding mandrel.
Eight, it is forbidden to stand on one side of the bending steel bar and there is no fixed fuselage. Bending semi-finished products should be neatly stacked, and the hook should not be upward.
Nine, when the turntable is reversing, it must be stopped.
Ten, homework finished, clean up the scene, maintenance machinery, power lock box.
Technical disclosure on operation safety of steel bar bending machine
1, before work, check whether the power cord, components and bending central shaft are in good condition, whether the leakage protector and neutral (or grounding) protection are effective, and run with no load before use.
2. When bending the long steel bar, two people should hold it, and the two people should act in unison, and they should not pull it at will. Non-straight steel bars are prohibited from bending on the bending machine.
3. When replacing the central shaft of the bending machine, the power supply should be cut off first, and it should not be replaced or repaired during operation to prevent personal injury.
4. Bending steel bars should be packed neatly. After the work, clean the rebar head around the machine, cut off the power supply and lock the brake box before leaving.
Safety operation procedures of steel bar cutting machine
First of all, before starting, it must be checked that the tool should be free of cracks, the tool rest bolts should be tightened, and the protective cover should be firm. Then, turn the pulley by hand, check the gear fit clearance and adjust the tool clearance.
Second, after starting, idle first, and check that the transmission part and bearing are operating normally before use.
Third, when the machine does not reach the normal speed, it is not allowed to cut materials. When cutting materials, you must use the lower and middle parts of the tool, hold the steel bar tightly, and then accelerate.
Four, shall not be shear diameter strength exceeds the provisions of the mechanical nameplate reinforcement and red-hot reinforcement. When cutting multiple steel bars at a time, the total cross-sectional area should be within the specified range.
5. When shearing low-alloy steel, the high-hardness tool should be replaced, and the diameter should conform to the nameplate.
Six, cut off the feed, the distance between the hand and the cutter should be kept above 65438+/-0.50 mm, such as holding end is less than 400mm, the application of casing and fixture will be reinforced end pressure or clamping. Seven, operation, it is forbidden to remove the broken ends and frame objects near the knife by hand, non-operating personnel shall not stay near the swing range of steel bars and knives.
Eight, found that the abnormal sound of mechanical operation or tool skew, etc. , should immediately stop, power outage maintenance.
Nine, after the operation, remove the sundries between knives with steel bars, clean up the construction site, and clean and maintain the whole machine. Turn off the power and lock the box.
Technical disclosure on operation safety of steel bar cutting machine
1. Before operation, check whether the leakage protector and blade are reliable, whether the power supply is connected correctly, whether the insulation of all electrical components is good, whether the transmission part is covered, and whether the fuselage has reliable zero (grounding) protection. Make sure there is no problem before using it.
2, before use, you must first empty test run, after confirmed no abnormalities, can officially start working.
3. When cutting steel bar, the steel bar must be pushed tightly. After the movable blade returns, the steel bar will be sent to the blade for cutting. It is forbidden to process steel bars exceeding specifications or with good quality. Cut special steel bars such as low alloy steel, and use high-hardness blades.
4, cutting short material, must be clamped with pliers after feeding, to prevent the end swing cuts.
5, cut off the long material, should be operated by two people, future generations should obey the previous command, coordinated, and shall not be arbitrarily pulled.
6, in the process of mechanical operation, it is forbidden to adjust, repair and cleaning.
7. When replacing the blade and maintaining it, please cut off the power supply before replacing it. Processed steel bars should be packed neatly, and the broken steel bar heads must be cleaned up. After processing, turn off the power supply and lock the brake box before leaving.
Construction site management system
In order to ensure the smooth progress of this project and complete the construction task with good quality and quantity on schedule, the company formulates the following management system, which is expected to be observed and effectively implemented by the employees.
1. All employees on this site must abide by the rules and regulations formulated by the company, obey the command and arrangement of the company's management personnel, and obey the guidance and inspection of the construction unit, construction unit, supervision company, engineering quality supervision department and relevant departments.
Second, strictly abide by the "Building Law of People's Republic of China (PRC)", "Regulations on the Implementation of Standardization Law of People's Republic of China (PRC)" and "Regulations on Quality Management of Construction Projects", abide by the law and strive to be civilized and advanced employees who are dedicated and realistic.
Three, resolutely abide by the schedule of the construction site, on time, don't be late, don't be late, don't leave early, have something to ask for leave, don't leave without leave.
4. Fighting and gambling are strictly prohibited. In case of violation, regardless of the seriousness of the case, a fine of 1000 yuan will be imposed, and the medical expenses will be borne by the company after treatment. Refuses to correct, and if the circumstances are serious, it shall be sent to the judicial department for handling.
5. Those who disobey the arrangement of the company's management personnel and personnel of relevant departments, stir up troubles and deliberately create troubles will be fined 500 yuan, and the medical expenses will be handled by the company after taking care of themselves, and the parties will be dismissed.
Six, civilized language, civilized manners, unity and enterprising, realistic and innovative.
Seven, the materials, equipment, machinery, tools, appliances, etc. of the construction site should be loved and cared for, and shall not be damaged or lost (including the property of Party A and neighboring units). Everyone should be concerned about the facilities of civilized construction sites. Whoever intentionally damages public property shall pay 200% of the original value. Those who do not operate according to the operating rules and have no intention of damage will be compensated for 50% of the original materials. Caring for public property is everyone's responsibility.
Eight, the site electricity should pay attention to safety, all power lines, electrical appliances, electricity, lighting electricity should be the site electrician personnel responsible for wiring, others are not allowed to mess. Otherwise, all unsafe accidents, mechanical damage accidents and casualties caused by the parties shall be borne by the parties themselves and compensated. The operation of machinery and equipment shall be carried out by professionals with (employment certificate), and the operation must be carried out in accordance with the "Mechanical Operation Regulations". Others are not allowed to open and touch it at will, otherwise all the consequences will be at your own risk. Safe driving and civilized operation.
Nine, all employees on site must establish the idea of safety first, and operate in strict accordance with various safety construction requirements to ensure safe construction. Adhere to the principle of putting prevention first and combining prevention with elimination to prevent kindling and fire sources from entering the construction site.
Ten, enter the construction site personnel must wear safety helmet, it is forbidden to wear slippers and high heels. It is forbidden to throw things from high altitude. When working high above the ground, you must fasten your seat belt and strictly abide by the safety operation procedures for building construction. If there is any illegal operation, the company will not bear all unsafe accidents and casualties, and its medical expenses, nursing expenses and lost time expenses will be borne by myself. If all unsafe accidents occur outside the construction site, I will be responsible for the consequences, and the company will not be responsible. Go to work happily and get off work safely.
XI. All employees on site should take good care of their luggage and articles. It is strictly forbidden to steal the property of this site, the construction unit, neighboring units and others or collude with outsiders to steal the property of this site. If it is found, it will be fined more than 1000 yuan or more than 20 times the original value, and those with serious circumstances will be sent to the judicial department for handling. A law-abiding and civilized official. Twelve, the site should be civilized construction, polite language is required between colleagues, do a good job in their own health and environmental sanitation, the construction site should always maintain good health conditions, construction machinery and equipment and site materials are placed in order, do a good job in site appearance and personal appearance fully meet the standards of civilized construction sites. Be polite to others and cultivate a good atmosphere.
Thirteen, all employees on the site, the construction team should keep and maintain all personal belongings (machines, tools, appliances, equipment, vehicles, tempering, daily necessities, office supplies, etc.). ) was used by them. In case of damage, loss, etc. They should compensate according to the price. The equipment will create benefits for me, and I will clean the equipment.
Fourteen, strictly abide by the civilized construction site and dormitory management system. Consciously abide by discipline and protect environmental sanitation. The tone is harmonious, United and friendly.
Fifteen, for the honor of the company and the interests of employees, I hope that employees will conscientiously implement and strictly abide by the above terms, fully embodying: everyone is for me, and I am for everyone!