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Step 1. The tank bottom – plates are placed on the prepared foundation and welded together.
Step 2. The beams or lattice work of the roof are assembled and finally joined to the upper rim of the shell ring.
Step 3. The jacking equipment is installed in the tank. The plates of the second shell ring (next to the top ring) are positioned outside the first one.
Step 4. The completed part of the tank (roof and top shell ring) is lifted hydraulically to a height at which the plates of the second ring can be moved into place and the roof sheeting can be completed.
Step 5. The plates of the second shell ring are located exactly and welded together to the lower edge of the first ring.
Step 6. The plates of the third shell ring are placed outside the second shell ring.
Step 7. The completed part of the tank (roof the two uppermost shell rings) is lifted.
Step 8. The above cycle of operations is repeated until the last (bottom) shell ring is finished.
Step 9. The entire tank is lowered down to the bottom plate and welded to this.
Step 10. The lifting equipment is dismantled.
The tank construction process needs two kinds of equipment, respectively is the welding machine and the hydraulic jacking system, the welding machine is divided into the horizontal welding machine and the vertical welding machine;the hydraulic jacking system is also divided into senior hydraulic jacking system and simple hydraulic jacking system.(If your tank is bottom to top,you don’t need the hydraulic jacking system.)
Before using the fuel tank hydraulic jacking system, you should fully check whether the metal structural components and appearance are intact, whether the sound is normal when running at no load, whether the brake is reliable for heavy load testing, whether the safety limits and protection devices are intact, and the most indispensable Is the safety device reliable?
Here is the content list:
l What are the operational safety requirements for tank hydraulic jacking system?
l What is the safety device of the tank hydraulic jacking system?
l Specific operating rules for tank hydraulic jacking system.
1. Tank hydraulic jacking system drivers and signal personnel must be specially trained
2. Pay attention to whether the tower type learned by the tank hydraulic jacking system driver is consistent with the actual tower type
3. Implement a dedicated person and plane to manage tank hydraulic jacking system, captain responsibility system, and strict handover system
4. The newly installed tank hydraulic jacking system or the tank hydraulic jacking system after overhaul must be commissioned according to the instructions.
5. Keep a safe distance between tank hydraulic jacking system and overhead transmission lines
6. Applicable fire extinguishing equipment should be equipped in the driver's cabin of tank hydraulic jacking system
The installation of tank hydraulic jacking system shall not use aluminum conductor and screw steel as grounding body or underground grounding wire. The wires connected by bolts must have one end. There are three main ways to ground:
① The grounding body adopts regular grounding piles, or 33*4.5 long 1.5m steel pipe, or 70*70 long 1.5m angle steel.
② The grounding plate is made of steel plate or other ductile metal plate, with an area of 1 square meter and a depth of 1.5m from the ground.
③ Copper conductors with a cross-section of not less than 28 mm or steel conductors with a cross-section of not less than 50 mm are buried in the wire slot, and the buried length is determined by the grounding resistance.
In the above three methods, the cross-sectional area of the copper wire drawn from the grounding body should not be less than 25. If the soil is poorly conductive, sodium chloride (table salt) can be buried in the soil. Then fill it with water. For the tank hydraulic jacking system, each rail must be grounded, the two rails should be connected by a wire, and the two rails should also be electrically connected.
l About tank hydraulic jacking system safety device:
1. A safety device that prevents the sling on the hook from slipping off automatically.
2. Install a compression spring sheet at the opening of the hook head to close the opening. This spring sheet can only be pressed down and cannot be turned up after the sling is put in. It can prevent the sling of the tank hydraulic jacking system from falling off automatically.
3. Drum safety device: An effective measure to prevent accidents caused by improper winding of the steel wire rope beyond the drum.
4. A steel bar is welded outside the drum to restrict the wire rope to only move within the drum.
5. Fixed foundation: The digging trench is 600mm deep, concrete is poured on the lime soil, the surface is smooth, and there are waterproof and grounding protection measures.
Before use, check that the metal structural parts and appearance are in good condition, the sound is normal when running under no load, the brake is reliable in the heavy load test, the safety limit and protection devices are complete, and the action is sensitive and reliable before operation.
When operating each controller, it should be operated step by step, and it is strictly forbidden to operate over gear. When changing the direction of rotation, the operating handle should be reset to zero, and the motor should stop rotating before reversing the operation. Strive for stability, and it is strictly forbidden to start and stop.
During the operation of the tank hydraulic jacking system, if any abnormality of the machinery is found, it should be shut down immediately for inspection, and operation can only be carried out after the fault is eliminated.
It is strictly forbidden to work with a certificate, and it is strictly forbidden to work after drinking. It is strictly forbidden to use the travel switch to replace the parking operation. It is strictly forbidden to work in violation of regulations, leave the work post or give the machine to others to drive.
When loading heavy objects, you should leave the ground at a certain distance and check that the brake is reliable before proceeding.Insist on "ten" not hanging. After the operation is completed, the box should be powered off and the machine should be "crossed"!
Hydraulic storage tank lifting equipment refers to a jack that uses a plunger or a hydraulic cylinder as a rigid lifting member. It has the characteristics of compact structure, stable operation, large top support, and self-locking. The hydraulic jack has strong supporting capacity, and the supporting force of heavy hydraulic jacks exceeds 100t.
What are the components of hydraulic storage tank lifting equipment?
What is the role of hydraulic storage tank lifting equipment?
What are the classifications of hydraulic storage tank lifting equipment?
Air filter: Prevent foreign debris from mixing, filter the air, and balance the pressure in the fuel tank and the atmosphere.
Oil level gauge: Used to observe the amount of oil in the tank. When the tow pump is working, the oil level must be above the middle of the oil level.
Thermometer: Displays hydraulic oil temperature.
Quick refill connector: used for filling of hydraulic oil.
Drain valve: It is used to remove dirty oil when the fuel tank is cleaned, and it is usually closed.
Hydraulic storage tank lifting equipment is a special container, in addition to storing hydraulic oil, it also has the function of dissipating heat and depositing grease. Therefore, in addition to cleaning the oil tank, the upper cover of the hydraulic oil tank cannot be opened casually, and an air filter is set on the oil tank to communicate the atmosphere with the air in the oil tank through the filter. Hydraulic oil tank is generally composed of quick refueling joint, air filter, thermometer, oil level gauge, oil suction self-sealing device, box body, drain valve and other main components.
Universal hydraulic storage tank lifting equipment is suitable for various lifting operations with small lifting height. It consists of oil chamber, oil pump, oil storage chamber, piston, crank handle, oil valve and other main parts. When working, as long as the crank handle is moved back and forth, the manual oil pump continuously presses oil into the oil cylinder. Due to the continuous increase of the oil pressure in the oil cylinder, the piston and the weight on the piston are forced to move upward together. Open the oil return valve, and the high-pressure oil in the oil cylinder will flow back to the oil storage chamber, so the weight and the piston will fall together.
The special hydraulic storage tank lifting equipment is a special tensioning machine, which applies tension to the prestressed steel bars when making prestressed concrete members. The dedicated hydraulic storage tank lifting equipment is mostly double-acting. There are two commonly used types: through-heart type and cone-anchor type.
The feed-through jack is suitable for tensioning steel tendons or wire bundles. It is mainly composed of a tensioning cylinder, a top-pressing cylinder, a top-pressing piston and a spring. Its characteristics are: there is a piercing hole along the axis of the stretching machine, and the steel bar (or steel wire) is anchored by the tool at the tail after being penetrated.
WINCOO ENGINEERING CO., LTD always focuses on customers’ needs and therefore it will provide the best hydraulic storage tank lifting equipment for all customers from all over the world. If you want to know more, please connect us.
The tank hydraulic jacking system is mainly used for vertical tank top to tank bottom construction, and can also be used for jacking or lifting of large work pieces. It is a closed or meshed hoist way enclosed by a building or light steel structure and uses a hydraulic drive to drive the top of the cylinder.
Here is the content list:
l The tank hydraulic jacking system is classified according to the standard of walking mechanism.
l Tank hydraulic jacking system classified according to structural characteristics standards.
l The tank hydraulic jacking system is classified according to the standard of the tower structure rotation mode.
The tank hydraulic jacking system is classified according to the standard of walking mechanism.
It can be divided into mobile tank hydraulic jacking system and fixed tank hydraulic jacking system.The mobile tank hydraulic jacking system can run on a special track, has good stability, can walk with load, and has high work efficiency, so it is widely used in construction and installation projects.
The fixed tank hydraulic jacking system is divided into two types: attached jack-up type and inner-climbing type according to the different installation positions. The attached jack-up tower crane can rise as the building rises and is suitable for high-rise buildings.
Tank hydraulic jacking system classified according to structural characteristics standards.
It can be divided into pitch luffing tank hydraulic jacking system and trolley luffing tank hydraulic jacking system.The tank hydraulic jacking system of the pitch luffing jib tower does not achieve luffing by lifting and lowering the boom. Its advantages are: it can give full play to the effective height of the boom, the mechanism is simple, and the disadvantage is that the minimum amplitude is limited to the maximum amplitude About 30%, it cannot be completely close to the tower body, and the load rises and falls with the boom during luffing, and the luffing with load is not allowed.
The trolley luffing boom tower tank hydraulic jacking system relies on the trolley installed on the horizontal boom track to achieve luffing. Its advantages are: a large luffing range, the load trolley can approach the tower body, and it can change with load. The disadvantages are that the force of the boom is complex, the structure requirements are high, and the boom and the trolley must be on the upper part of the building, and the installation height of the spire is 15-20 meters higher than the roof of the building.
The tank hydraulic jacking system is classified according to the standard of the tower structure rotation mode.
It can be divided into down-turn tank hydraulic jacking system and up-turn tank hydraulic jacking system.The tank hydraulic jacking system of the lower slewing tower crane is equipped with the slewing support and the main mechanism of the balance weight at the lower end. Its advantages are: less bending moments on the tower, low center of gravity, good stability, convenient installation and maintenance, but the disadvantages are correct The slewing bearing has high requirements and the installation height is limited.
The upper slewing tower tank hydraulic jacking system has the slewing support, balance weight, and main mechanisms at the upper end. Its advantage is that since the tower body does not rotate, the lower structure of the tower body can be simplified and the jacking and joints are convenient.
The disadvantage is that when the building exceeds the height of the tower, the rotation of the tower crane is restricted due to the influence of the balance arm. At the same time, the center of gravity is higher, the wind pressure increases, and the weight increases, which increases the total weight of the whole machine.
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